{"id":8051,"date":"2025-10-22T16:22:24","date_gmt":"2025-10-22T08:22:24","guid":{"rendered":"https:\/\/topfastpcba.com\/?p=8051"},"modified":"2025-10-22T16:22:34","modified_gmt":"2025-10-22T08:22:34","slug":"%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8","status":"publish","type":"post","link":"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/","title":{"rendered":"\u0645\u0628\u062f\u0623 \u062a\u0648\u062c\u064a\u0647 PCB 3W"},"content":{"rendered":"<p class=\"wp-block-paragraph\">In <a href=\"https:\/\/topfastpcba.com\/ar\/%d8%aa%d8%b5%d9%85%d9%8a%d9%85-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8%d9%88%d8%b9%d8%a9-%d8%b9%d8%a7%d9%84%d9%8a%d8%a9-%d8%a7%d9%84\/\">\u062a\u0635\u0645\u064a\u0645 \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629<\/a>\u060c \u062a\u0639\u062f \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0623\u062d\u062f \u0627\u0644\u062a\u062d\u062f\u064a\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0627\u0644\u062a\u064a \u064a\u0648\u0627\u062c\u0647\u0647\u0627 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646. \u064a\u0645\u0643\u0646 \u0644\u0645\u0628\u062f\u0623 3W\u060c \u0628\u0627\u0639\u062a\u0628\u0627\u0631\u0647 \u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0629 \u062a\u0648\u062c\u064a\u0647 \u0641\u0639\u0627\u0644\u0629\u060c \u0623\u0646 \u064a\u0642\u0644\u0644 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0645\u0646 \u0645\u0634\u0643\u0644\u0627\u062a \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0648\u064a\u0636\u0645\u0646 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062f\u0627\u0626\u0631\u0629.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#The_Core_Definition_of_the_3W_Principle\" >\u0627\u0644\u062a\u0639\u0631\u064a\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0645\u0628\u062f\u0623 3W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#What_is_the_3W_Rule\" >\u0645\u0627 \u0647\u064a \u0642\u0627\u0639\u062f\u0629 3W\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Physical_Basis_of_the_3W_Rule\" >\u0627\u0644\u0623\u0633\u0627\u0633 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a \u0644\u0642\u0627\u0639\u062f\u0629 3W<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Practical_Application_and_Limitations_of_the_3W_Rule\" >\u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0639\u0645\u0644\u064a \u0648\u0627\u0644\u0642\u064a\u0648\u062f \u0627\u0644\u0645\u0641\u0631\u0648\u0636\u0629 \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 3W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Application_Scenarios\" >\u0633\u064a\u0646\u0627\u0631\u064a\u0648\u0647\u0627\u062a \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Effectiveness_Evaluation_and_Limitations\" >\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0641\u0639\u0627\u0644\u064a\u0629 \u0648\u0627\u0644\u0642\u064a\u0648\u062f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Complementary_Design_Strategies_to_the_3W_Rule\" >\u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u0643\u0645\u064a\u0644\u064a\u0629 \u0644\u0642\u0627\u0639\u062f\u0629 3W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Guard_Traces\" >\u0622\u062b\u0627\u0631 \u0627\u0644\u062d\u0627\u0631\u0633<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Combination_with_20H_Rule\" >\u0627\u0644\u0627\u0642\u062a\u0631\u0627\u0646 \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 20H<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Differential_Signal_Design\" >\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Flexible_Application_and_Adjustment_of_the_3W_Rule\" >\u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0645\u0631\u0646 \u0648\u062a\u0639\u062f\u064a\u0644 \u0642\u0627\u0639\u062f\u0629 3W<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Dynamic_Spacing_Adjustment\" >\u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0627\u0644\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Consideration_of_the_3H_Rule\" >\u0627\u0644\u0646\u0638\u0631 \u0641\u064a \u0642\u0627\u0639\u062f\u0629 3H<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Design_Verification_and_Simulation\" >\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0648\u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Simulation_Necessity\" >\u0636\u0631\u0648\u0631\u0629 \u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Practical_Test_Case\" >\u062d\u0627\u0644\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0639\u0645\u0644\u064a\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Common_Issues_and_Solutions\" >\u0627\u0644\u0645\u0634\u0643\u0644\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0648\u0627\u0644\u062d\u0644\u0648\u0644<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Does_the_3W_Rule_Apply_to_All_Traces\" >\u0647\u0644 \u062a\u0646\u0637\u0628\u0642 \u0642\u0627\u0639\u062f\u0629 3W \u0639\u0644\u0649 \u062c\u0645\u064a\u0639 \u0627\u0644\u0622\u062b\u0627\u0631\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#How_to_Compromise_When_Space_is_Limited\" >\u0643\u064a\u0641 \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u0648\u0635\u0644 \u0625\u0644\u0649 \u062d\u0644 \u0648\u0633\u0637 \u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0645\u062d\u062f\u0648\u062f\u0629\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Balancing_the_3W_Rule_and_Impedance_Control\" >\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0642\u0627\u0639\u062f\u0629 3W \u0648\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/topfastpcba.com\/ar\/%d9%85%d8%a8%d8%af%d8%a3-%d8%aa%d9%88%d8%ac%d9%8a%d9%87-%d9%85%d8%b3%d8%a7%d8%b1%d8%a7%d8%aa-%d9%84%d9%88%d8%ad%d8%a7%d8%aa-%d8%a7%d9%84%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d8%a7%d9%84%d9%85%d8%b7%d8%a8\/#Conclusion\" >\u0627\u0644\u062e\u0627\u062a\u0645\u0629<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Core_Definition_of_the_3W_Principle\"><\/span>\u0627\u0644\u062a\u0639\u0631\u064a\u0641 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0645\u0628\u062f\u0623 3W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_3W_Rule\"><\/span>\u0645\u0627 \u0647\u064a \u0642\u0627\u0639\u062f\u0629 3W\u061f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0642\u0627\u0639\u062f\u0629 3W \u0647\u064a \u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0648\u062c\u064a\u0647 PCB \u062a\u062a\u0637\u0644\u0628 <strong>\u064a\u062c\u0628 \u0623\u0644\u0627 \u064a\u0642\u0644 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0628\u064a\u0646 \u0645\u0631\u0627\u0643\u0632 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u062a\u062c\u0627\u0648\u0631\u0629 \u0639\u0646 3 \u0623\u0636\u0639\u0627\u0641 \u0639\u0631\u0636 \u0627\u0644\u0645\u0633\u0627\u0631.<\/strong>. Specifically, if the signal trace width is W, then the center distance between two parallel traces should satisfy L \u2265 3W, resulting in an edge-to-edge spacing of 2W.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Physical_Basis_of_the_3W_Rule\"><\/span>\u0627\u0644\u0623\u0633\u0627\u0633 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a \u0644\u0642\u0627\u0639\u062f\u0629 3W<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Crosstalk is primarily caused by parasitic capacitance and mutual inductance between traces. According to the capacitance formula C = \u03b5S\/d, where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C \u064a\u0645\u062b\u0644 \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0637\u0641\u064a\u0644\u064a\u0629 \u0628\u064a\u0646 \u0627\u0644\u0645\u0633\u0627\u0631\u0627\u062a<\/li>\n\n\n\n<li>\u03b5 is the dielectric constant<\/li>\n\n\n\n<li>S \u0647\u064a \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u0648\u0635\u0644 \u0627\u0644\u0646\u0633\u0628\u064a\u0629<\/li>\n\n\n\n<li>d \u0647\u064a \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0645\u0648\u0635\u0644\u0627\u062a<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u062e\u0637\u0648\u0637 (d)<\/strong> \u064a\u0642\u0644\u0644 \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0645\u0646 \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0637\u0641\u064a\u0644\u064a\u0629\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u064a\u0642\u0644\u0644 \u0645\u0646 \u0627\u0644\u062a\u062f\u0627\u062e\u0644. \u062a\u062a\u0646\u0627\u0642\u0635 \u0642\u0648\u0629 \u0627\u0642\u062a\u0631\u0627\u0646 \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a \u0628\u0634\u0643\u0644 \u0623\u0633\u064a \u0645\u0639 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0633\u0627\u0641\u0629. \u0623\u062b\u0628\u062a\u062a \u0627\u0644\u062a\u062c\u0627\u0631\u0628 \u0623\u0646 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u062a\u064a \u062a\u0628\u0644\u063a 3 \u0623\u0636\u0639\u0627\u0641 \u0639\u0631\u0636 \u0627\u0644\u0645\u0633\u0627\u0631 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0639\u0632\u0644 \u0623\u0643\u062b\u0631 \u0645\u0646 70\u066a \u0645\u0646 \u062a\u062f\u0627\u062e\u0644 \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u060c \u0641\u064a \u062d\u064a\u0646 \u0623\u0646 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u062a\u064a \u062a\u0628\u0644\u063a 10 \u0623\u0636\u0639\u0627\u0641 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0642\u0644\u0644 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0628\u0646\u0633\u0628\u0629 \u062a\u0635\u0644 \u0625\u0644\u0649 98\u066a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_Application_and_Limitations_of_the_3W_Rule\"><\/span>\u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0639\u0645\u0644\u064a \u0648\u0627\u0644\u0642\u064a\u0648\u062f \u0627\u0644\u0645\u0641\u0631\u0648\u0636\u0629 \u0639\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 3W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Application_Scenarios\"><\/span>\u0633\u064a\u0646\u0627\u0631\u064a\u0648\u0647\u0627\u062a \u0627\u0644\u062a\u0637\u0628\u064a\u0642<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0646\u0637\u0628\u0642 \u0642\u0627\u0639\u062f\u0629 3W \u0628\u0634\u0643\u0644 \u0623\u0633\u0627\u0633\u064a \u0639\u0644\u0649 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u0633\u0627\u0639\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0631\u062f\u062f<\/li>\n\n\n\n<li>\u0646\u0627\u0642\u0644\u0627\u062a \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629 (\u0645\u062b\u0644 DDR \u0648 PCIe)<\/li>\n\n\n\n<li>\u0623\u0632\u0648\u0627\u062c \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a\u0629<\/li>\n\n\n\n<li>\u062e\u0637\u0648\u0637 \u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u0641\u064a\u062f\u064a\u0648 \u0648\u0627\u0644\u0635\u0648\u062a<\/li>\n\n\n\n<li>\u0625\u0639\u0627\u062f\u0629 \u0636\u0628\u0637 \u0627\u0644\u0646\u0638\u0627\u0645 \u0648\u062e\u0637\u0648\u0637 \u0627\u0644\u062a\u062d\u0643\u0645<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Effectiveness_Evaluation_and_Limitations\"><\/span>\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0641\u0639\u0627\u0644\u064a\u0629 \u0648\u0627\u0644\u0642\u064a\u0648\u062f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0627\u0644\u0641\u0639\u0627\u0644\u064a\u0629<\/strong>: \u062a\u0642\u0644\u0644 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u0628\u0627\u0644\u063a\u0629 3 \u0648\u0627\u062a \u0645\u0646 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0628\u0646\u0633\u0628\u0629 70\u066a \u062a\u0642\u0631\u064a\u0628\u064b\u0627\u060c \u0628\u064a\u0646\u0645\u0627 \u062a\u0642\u0644\u0644 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0627\u0644\u0628\u0627\u0644\u063a\u0629 10 \u0648\u0627\u062a \u0645\u0646 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0628\u0646\u0633\u0628\u0629 98\u066a \u062a\u0642\u0631\u064a\u0628\u064b\u0627.<\/li>\n\n\n\n<li><strong>\u0627\u0644\u0642\u064a\u0648\u062f<\/strong>: \u062a\u0646\u0637\u0628\u0642 \u0642\u0627\u0639\u062f\u0629 3W \u0641\u064a \u0638\u0631\u0648\u0641 \u0645\u0642\u0627\u0648\u0645\u0629 \u0645\u0645\u064a\u0632\u0629 \u0623\u0642\u0644 \u0645\u0646 50 \u0623\u0648\u0645\u060c \u0648\u062a\u0624\u062b\u0631 \u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u0631\u0627\u0635 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0639\u0644\u0649 \u0641\u0639\u0627\u0644\u064a\u062a\u0647\u0627:<\/li>\n\n\n\n<li>\u0644\u0648\u062d\u0629 \u0645\u0646 \u0623\u0631\u0628\u0639 \u0637\u0628\u0642\u0627\u062a (\u0645\u0633\u0627\u0641\u0629 5-10 \u0645\u0644 \u0628\u064a\u0646 \u0627\u0644\u0645\u0633\u0627\u0631 \u0648\u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0631\u062c\u0639\u064a): \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u062a\u0643\u0648\u0646 3 \u0648\u0627\u062a \u0643\u0627\u0641\u064a\u0629<\/li>\n\n\n\n<li>\u0644\u0648\u062d\u0629 \u0630\u0627\u062a \u0637\u0628\u0642\u062a\u064a\u0646 (\u0645\u0633\u0627\u0641\u0629 45-55 \u0645\u0644 \u0628\u064a\u0646 \u0627\u0644\u0645\u0633\u0627\u0631 \u0648\u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0631\u062c\u0639\u064a): \u0642\u062f \u0644\u0627 \u062a\u0643\u0648\u0646 3 \u0648\u0627\u062a \u0643\u0627\u0641\u064a\u0629\u060c \u0648\u0642\u062f \u062a\u0643\u0648\u0646 \u0647\u0646\u0627\u0643 \u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0633\u0627\u0641\u0629<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-1.jpg\" alt=\"\u0645\u0628\u062f\u0623 \u062a\u0648\u062c\u064a\u0647 PCB 3W\" class=\"wp-image-8054\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-1.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-1-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-1-18x12.jpg 18w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-1-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Complementary_Design_Strategies_to_the_3W_Rule\"><\/span>\u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u0643\u0645\u064a\u0644\u064a\u0629 \u0644\u0642\u0627\u0639\u062f\u0629 3W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Guard_Traces\"><\/span>\u0622\u062b\u0627\u0631 \u0627\u0644\u062d\u0627\u0631\u0633<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0628\u0634\u0643\u0644 \u062e\u0627\u0635\u060c <strong>\u062a\u0635\u0645\u064a\u0645 \u0623\u062b\u0631 \u0627\u0644\u062d\u0631\u0627\u0633\u0629<\/strong> can be employed\u2014placing ground traces on both sides of the signal trace and connecting them to the reference plane via ground vias. This method effectively absorbs crosstalk signals and may allow for some relaxation of the 3W spacing requirement in certain cases.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Combination_with_20H_Rule\"><\/span>\u0627\u0644\u0627\u0642\u062a\u0631\u0627\u0646 \u0645\u0639 \u0642\u0627\u0639\u062f\u0629 20H<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0645\u0634\u0643\u0644\u0627\u062a \u0625\u0634\u0639\u0627\u0639 \u062d\u0627\u0641\u0629 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0637\u0627\u0642\u0629\u060c \u0641\u0625\u0646 <strong>\u0642\u0627\u0639\u062f\u0629 20H<\/strong> can be applied\u2014insetting the power plane by 20 times the dielectric thickness can suppress 70% of edge flux leakage, working synergistically with the 3W rule to reduce overall EMI.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Differential_Signal_Design\"><\/span>\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0623\u0632\u0648\u0627\u062c \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629\u060c \u0628\u0627\u0644\u0625\u0636\u0627\u0641\u0629 \u0625\u0644\u0649 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u062a\u0628\u0627\u0639\u062f\u060c \u062a\u0623\u0643\u062f \u0645\u0646:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0645\u0637\u0627\u0628\u0642\u0629 \u0637\u0648\u0644 \u062f\u0642\u064a\u0642\u0629 (\u0639\u0627\u062f\u0629\u064b \u0627\u0646\u062d\u0631\u0627\u0641 \u0623\u0642\u0644 \u0645\u0646 5 \u0645\u0644)<\/li>\n\n\n\n<li>\u0627\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u0645\u062a\u0633\u0642 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629<\/li>\n\n\n\n<li>\u0646\u0647\u062c \u0627\u0644\u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u0645\u062a\u0645\u0627\u062b\u0644<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Flexible_Application_and_Adjustment_of_the_3W_Rule\"><\/span>\u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0645\u0631\u0646 \u0648\u062a\u0639\u062f\u064a\u0644 \u0642\u0627\u0639\u062f\u0629 3W<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dynamic_Spacing_Adjustment\"><\/span>\u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0627\u0644\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">3W \u0647\u064a \u0642\u064a\u0645\u0629 \u062a\u062c\u0631\u064a\u0628\u064a\u0629 \u0648\u0644\u064a\u0633\u062a \u0642\u0627\u0639\u062f\u0629 \u0645\u0637\u0644\u0642\u0629. \u064a\u062c\u0628 \u062a\u0639\u062f\u064a\u0644 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0627\u0644\u0641\u0639\u0644\u064a \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0645\u0639\u062f\u0644 \u0627\u0644\u0625\u0634\u0627\u0631\u0629<\/strong>: Signals \u2265500MHz may require 4W or 5W spacing<\/li>\n\n\n\n<li><strong>\u0645\u0627\u062f\u0629 \u0639\u0627\u0632\u0644\u0629<\/strong>: \u062a\u0624\u062b\u0631 \u0627\u0644\u062b\u0648\u0627\u0628\u062a \u0627\u0644\u0639\u0627\u0632\u0644\u0629 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u064a\u0627\u062a \u0627\u0644\u062a\u062f\u0627\u062e\u0644<\/li>\n\n\n\n<li><strong>\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629<\/strong>: \u0642\u062f \u062a\u0624\u062b\u0631 \u0645\u0637\u0627\u0628\u0642\u0629 \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629 \u0627\u0644\u0645\u062d\u062f\u062f\u0629 \u0639\u0644\u0649 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0627\u0644\u0623\u0645\u062b\u0644<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Consideration_of_the_3H_Rule\"><\/span>\u0627\u0644\u0646\u0638\u0631 \u0641\u064a \u0642\u0627\u0639\u062f\u0629 3H<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0639\u0646\u062f\u0645\u0627 \u062a\u0643\u0648\u0646 \u0637\u0628\u0642\u0629 \u0627\u0644\u062a\u062a\u0628\u0639 \u0628\u0639\u064a\u062f\u0629 \u0639\u0646 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0631\u062c\u0639\u064a\u060c \u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 <strong>\u0642\u0627\u0639\u062f\u0629 3H<\/strong>\u2014trace spacing should not be less than 3 times the distance from the trace layer to the reference plane. This focuses more on electric field coupling control, complementing the 3W rule (which emphasizes magnetic field coupling).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Design_Verification_and_Simulation\"><\/span>\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0648\u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Simulation_Necessity\"><\/span>\u0636\u0631\u0648\u0631\u0629 \u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0639\u062f \u0627\u0644\u0627\u0646\u062a\u0647\u0627\u0621 \u0645\u0646 \u0627\u0644\u062a\u0648\u062c\u064a\u0647\u060c \u0645\u0646 \u0627\u0644\u0636\u0631\u0648\u0631\u064a \u0625\u062c\u0631\u0627\u0621 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0623\u062f\u0648\u0627\u062a \u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629 \u0627\u0644\u0627\u062d\u062a\u0631\u0627\u0641\u064a\u0629:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u062a\u062f\u0627\u062e\u0644<\/li>\n\n\n\n<li>\u0641\u062d\u0635 \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0625\u0634\u0627\u0631\u0629<\/li>\n\n\n\n<li>\u062a\u0642\u064a\u064a\u0645 \u0627\u0633\u062a\u0645\u0631\u0627\u0631\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_Test_Case\"><\/span>\u062d\u0627\u0644\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0639\u0645\u0644\u064a\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0623\u0638\u0647\u0631\u062a \u062d\u0627\u0644\u0629 \u062a\u0635\u0645\u064a\u0645 \u062c\u0647\u0627\u0632 \u062a\u0648\u062c\u064a\u0647 5G \u0623\u0646\u0647 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0631\u062f\u062f \u0627\u0644\u0644\u0627\u0633\u0644\u0643\u064a \u0648\u0625\u064a\u062b\u0631\u0646\u062a \u0645\u0646 0.8 \u0645\u0645 \u0625\u0644\u0649 \u0645\u0627 \u064a\u0639\u0627\u062f\u0644 1 \u0645\u0645\u060c \u0625\u0644\u0649 \u062c\u0627\u0646\u0628 \u0639\u0632\u0644 \u0627\u0644\u0646\u062d\u0627\u0633 \u0627\u0644\u0645\u0624\u0631\u0636\u060c \u0646\u062c\u062d \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0641\u064a \u0627\u062c\u062a\u064a\u0627\u0632 \u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-2.jpg\" alt=\"\u0645\u0628\u062f\u0623 \u062a\u0648\u062c\u064a\u0647 PCB 3W\" class=\"wp-image-8055\" srcset=\"https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-2.jpg 600w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-2-300x201.jpg 300w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-2-18x12.jpg 18w, https:\/\/topfastpcba.com\/wp-content\/uploads\/2025\/10\/PCB-Routing-3W-Principle-2-150x101.jpg 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Issues_and_Solutions\"><\/span>\u0627\u0644\u0645\u0634\u0643\u0644\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0648\u0627\u0644\u062d\u0644\u0648\u0644<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Does_the_3W_Rule_Apply_to_All_Traces\"><\/span>\u0647\u0644 \u062a\u0646\u0637\u0628\u0642 \u0642\u0627\u0639\u062f\u0629 3W \u0639\u0644\u0649 \u062c\u0645\u064a\u0639 \u0627\u0644\u0622\u062b\u0627\u0631\u061f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0627. \u062a\u0633\u062a\u0647\u062f\u0641 \u0642\u0627\u0639\u062f\u0629 3W \u0641\u064a \u0627\u0644\u0645\u0642\u0627\u0645 \u0627\u0644\u0623\u0648\u0644 \u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629 \u0644\u0645\u0633\u0627\u0641\u0627\u062a \u0637\u0648\u064a\u0644\u0629. \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0645\u0646\u062e\u0641\u0636\u0629 \u0627\u0644\u0633\u0631\u0639\u0629 \u0623\u0648 \u0627\u0644\u0645\u0633\u0627\u0631\u0627\u062a \u0642\u0635\u064a\u0631\u0629 \u0627\u0644\u0645\u0633\u0627\u0641\u0629\u060c \u064a\u0645\u0643\u0646 \u062a\u062e\u0641\u064a\u0641 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0628\u0634\u0643\u0644 \u0645\u0646\u0627\u0633\u0628 \u0644\u062a\u062d\u0633\u064a\u0646 \u0643\u062b\u0627\u0641\u0629 \u0627\u0644\u062a\u0648\u062c\u064a\u0647.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Compromise_When_Space_is_Limited\"><\/span>\u0643\u064a\u0641 \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u0648\u0635\u0644 \u0625\u0644\u0649 \u062d\u0644 \u0648\u0633\u0637 \u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0645\u062d\u062f\u0648\u062f\u0629\u061f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0639\u0646\u062f\u0645\u0627 \u062a\u0643\u0648\u0646 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0644\u0648\u062d\u0629 \u0645\u062d\u062f\u0648\u062f\u0629\u060c \u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u0645\u0627 \u064a\u0644\u064a:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u063a\u064a\u0631 \u0627\u0644\u062d\u0631\u062c\u0629<\/li>\n\n\n\n<li>\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0622\u062b\u0627\u0631 \u0627\u0644\u062d\u0631\u0627\u0633\u0629 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u062a\u0628\u0627\u0639\u062f<\/li>\n\n\n\n<li>\u062a\u062d\u0633\u064a\u0646 \u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u0631\u0627\u0635 \u0644\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0645\u0646 \u0627\u0644\u0645\u0633\u0627\u0631\u0627\u062a \u0625\u0644\u0649 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0631\u062c\u0639\u064a<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Balancing_the_3W_Rule_and_Impedance_Control\"><\/span>\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0642\u0627\u0639\u062f\u0629 3W \u0648\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0641\u064a \u0627\u0644\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u062a\u064a \u062a\u062e\u0636\u0639 \u0644\u0631\u0642\u0627\u0628\u0629 \u0635\u0627\u0631\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629\u060c \u0642\u062f \u064a\u0643\u0648\u0646 \u0645\u0646 \u0627\u0644\u0636\u0631\u0648\u0631\u064a \u062a\u0639\u062f\u064a\u0644 \u062a\u0628\u0627\u0639\u062f 3W \u0644\u062a\u0644\u0628\u064a\u0629 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629. \u064a\u062c\u0628 \u0623\u0646 \u062a\u062d\u062f\u062f \u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629 \u0627\u0644\u062d\u0644 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0623\u0645\u062b\u0644 \u0641\u064a \u0645\u062b\u0644 \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0627\u062a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>\u0627\u0644\u062e\u0627\u062a\u0645\u0629<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0628\u062f\u0623 3W \u0647\u0648 \u0623\u062f\u0627\u0629 \u062d\u064a\u0648\u064a\u0629 \u0641\u064a <a href=\"https:\/\/topfastpcba.com\/ar\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%aa%d8%b5%d9%85%d9%8a%d9%85-%d9%84%d9%88%d8%ad%d8%a9-%d8%af%d9%88%d8%a7%d8%a6%d8%b1-%d9%85%d8%b7%d8%a8%d9%88%d8%b9%d8%a9-pcb\/\">\u062a\u0635\u0645\u064a\u0645 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0641\u064a\u0646\u064a\u0644 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0643\u0644\u0648\u0631<\/a> \u0635\u0646\u062f\u0648\u0642 \u0623\u062f\u0648\u0627\u062a \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u060c \u0648\u0644\u0643\u0646\u0647 \u0644\u064a\u0633 \u062d\u0644\u0627\u064b \u0634\u0627\u0645\u0644\u0627\u064b. \u064a\u062a\u0637\u0644\u0628 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0646\u0627\u062c\u062d \u0644\u0644\u0645\u0633\u0627\u0631\u0627\u062a \u062f\u0631\u0627\u0633\u0629 \u0634\u0627\u0645\u0644\u0629 \u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0625\u0634\u0627\u0631\u0629\u060c \u0648\u0647\u064a\u0643\u0644 \u0637\u0628\u0642\u0627\u062a \u0627\u0644\u0644\u0648\u062d\u0629\u060c \u0648\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u0648\u0642\u0629\u060c \u0648\u0623\u0647\u062f\u0627\u0641 EMC\u060c \u0645\u0639 \u062f\u0645\u062c \u0645\u0628\u062f\u0623 3W \u0645\u0639 \u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0623\u062e\u0631\u0649 \u0645\u062b\u0644 \u0627\u0644\u0645\u0633\u062a\u0648\u064a\u0627\u062a \u0627\u0644\u0623\u0631\u0636\u064a\u0629\u060c \u0648\u0642\u0627\u0639\u062f\u0629 20H\u060c \u0648\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0623\u0632\u0648\u0627\u062c \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a\u0629. \u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0627\u0644\u0623\u0645\u062b\u0644 \u0628\u064a\u0646 \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0648\u0623\u062f\u0627\u0621 EMC \u0648\u062a\u0643\u0627\u0644\u064a\u0641 \u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0625\u0644\u0627 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0639\u0645\u0644\u064a\u0629 \u062a\u0643\u0631\u0627\u0631\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0646\u0638\u0631\u064a \u0648\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0645\u062d\u0627\u0643\u0627\u0629 \u0648\u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0639\u0645\u0644\u064a.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0645\u0628\u062f\u0623 3W \u0647\u0648 \u0625\u0631\u0634\u0627\u062f\u0627\u062a \u062a\u0635\u0645\u064a\u0645 \u0623\u0633\u0627\u0633\u064a\u0629 \u0644\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u062a\u062f\u0627\u062e\u0644 \u0641\u064a \u062a\u0648\u062c\u064a\u0647 PCB\u060c \u062d\u064a\u062b \u064a\u062a\u0637\u0644\u0628 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0627\u0644\u062a\u0628\u0627\u0639\u062f \u0628\u064a\u0646 \u0627\u0644\u0645\u0631\u0643\u0632\u064a\u0646 \u0628\u064a\u0646 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0625\u0634\u0627\u0631\u0627\u062a \u0627\u0644\u0645\u062a\u062c\u0627\u0648\u0631\u0629 \u0644\u0627 \u064a\u0642\u0644 \u0639\u0646 \u062b\u0644\u0627\u062b\u0629 \u0623\u0636\u0639\u0627\u0641 \u0639\u0631\u0636 \u0627\u0644\u0645\u0633\u0627\u0631. \u0625\u0646 \u0641\u0647\u0645 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0621 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0648\u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648\u0647\u0627\u062a \u0627\u0644\u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0637\u0628\u064a\u0642 \u0648\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0641\u0639\u0627\u0644\u064a\u0629 \u0648\u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631\u0627\u062a \u0627\u0644\u0639\u0645\u0644\u064a\u0629 \u0639\u0646\u062f \u062a\u0637\u0628\u064a\u0642 \u0647\u0630\u0627 \u0627\u0644\u0645\u0628\u062f\u0623 \u064a\u0645\u0643\u0651\u0646 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0645\u0646 \u062a\u062d\u0633\u064a\u0646 \u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0641\u064a \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629.<\/p>","protected":false},"author":2,"featured_media":8053,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[66,118],"class_list":["post-8051","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-pcb-design","tag-pcb-routing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PCB Routing 3W Principle - Topfastpcba<\/title>\n<meta name=\"description\" content=\"PCB Routing 3W Principle: By ensuring signal trace center-to-center spacing \u2265 3 times the trace width, crosstalk is effectively reduced by over 70%. 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