\u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0627\u0644\u0645\u0639\u0631\u0636\u0629 \u0644\u062f\u0648\u0631\u0627\u062a \u062d\u0631\u0627\u0631\u064a\u0629 \u0645\u062a\u0643\u0631\u0631\u0629<\/li>\n<\/ul>\n\n\n\n\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0627\u0644\u0627\u0633\u062a\u0647\u0644\u0627\u0643\u064a\u0629\u060c \u0644\u0627 \u064a\u0632\u0627\u0644 \u0645\u0627\u062f\u0629 FR4 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u062a\u0648\u0641\u0631 \u0623\u062f\u0627\u0621\u064b \u0645\u0648\u062b\u0648\u0642\u064b\u0627 \u0628\u0647 \u0639\u0646\u062f\u0645\u0627 \u062a\u062a\u0646\u0627\u0633\u0628 \u0645\u0639 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0645\u0642\u0635\u0648\u062f.<\/p>\n\n\n\n![\"\u0645\u0639\u0627\u0645\u0644](\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Coefficient-of-Thermal-Expansion-3.jpg\")
<\/figure>\n\n\n\n\u0643\u064a\u0641\u064a\u0629 \u062a\u0642\u064a\u064a\u0645 CTE \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0648\u0627\u062f<\/h2>\n\n\n\n<\/p>
- \u0627\u0644\u062e\u0637\u0648\u0629 1<\/strong>
\u062d\u062f\u062f \u0623\u0639\u0644\u0649 \u062f\u0631\u062c\u0627\u062a \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u062c\u0645\u064a\u0639 \u0648\u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062a\u064a \u0633\u062a\u062a\u0639\u0631\u0636 \u0644\u0647\u0627 \u0644\u0648\u062d\u0629 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629.<\/p> <\/li>
- \u0627\u0644\u062e\u0637\u0648\u0629 2<\/strong>
\u0631\u0627\u062c\u0639 \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u0627\u0644\u0635\u0627\u062f\u0631\u0629 \u0639\u0646 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0644\u0644\u0631\u0642\u0627\u0626\u0642 \u0627\u0644\u062e\u0634\u0628\u064a\u0629 \u0641\u064a \u062c\u0645\u064a\u0639 \u0627\u0644\u0627\u062a\u062c\u0627\u0647\u0627\u062a \u0627\u0644\u062b\u0644\u0627\u062b\u0629\u060c \u0648\u0644\u0627 \u0633\u064a\u0645\u0627 \u0627\u0644\u0645\u062d\u0648\u0631 Z.<\/p> <\/li>
- \u0627\u0644\u062e\u0637\u0648\u0629 3<\/strong>
\u0642\u0627\u0631\u0646 \u0628\u064a\u0646 CTE \u0648Tg\u060c \u0648\u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0639\u0627\u0632\u0644\u0629\u060c \u0648\u0627\u0644\u0623\u062f\u0627\u0621 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a.<\/p> <\/li>
- \u0627\u0644\u062e\u0637\u0648\u0629 4<\/strong>
\u062a\u0623\u0643\u062f \u0645\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0648\u0627\u062f \u0645\u0639 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0644\u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB) \u0642\u0628\u0644 \u0627\u0644\u0627\u0646\u062a\u0647\u0627\u0621 \u0645\u0646 \u062a\u062d\u062f\u064a\u062f \u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0637\u0628\u0642\u0627\u062a.<\/p> <\/li><\/ol><\/div>\n\n\n\n
\u0627\u0644\u062e\u0627\u062a\u0645\u0629<\/h2>\n\n\n\n
\u064a\u064f\u0639\u062f \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0625\u062d\u062f\u0649 \u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u0647\u0645\u0629 \u0644\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB) \u0644\u062a\u063a\u064a\u0631\u0627\u062a \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629.<\/p>\n\n\n\n
\u0648\u0631\u063a\u0645 \u0623\u0646 \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u0646\u0627\u062f\u0631\u064b\u0627 \u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u0639\u0627\u0645\u0644 \u0627\u0644\u0648\u062d\u064a\u062f \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0648\u0627\u062f\u060c \u0641\u0625\u0646 \u0641\u0647\u0645 \u0643\u064a\u0641\u064a\u0629 \u062a\u0645\u062f\u062f \u0627\u0644\u0637\u0628\u0642\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u062a\u062d\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0633\u0627\u0639\u062f \u0641\u064a \u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644 \u0648\u062a\u0642\u0644\u064a\u0644 \u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u062a\u0635\u0646\u064a\u0639.<\/p>\n\n\n\n
\u0625\u0646 \u062a\u0642\u064a\u064a\u0645 CTE \u062c\u0646\u0628\u064b\u0627 \u0625\u0644\u0649 \u062c\u0646\u0628 \u0645\u0639 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 (Tg) \u0648\u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0639\u0627\u0632\u0644\u0629 \u0648\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u064a\u0648\u0641\u0631 \u0623\u0633\u0627\u0633\u064b\u0627 \u0623\u0643\u062b\u0631 \u0634\u0645\u0648\u0644\u0627\u064b \u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0645\u0648\u0627\u062f \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB).<\/p>\n\n\n\n
\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n\n\n\n\u0633: \u0645\u0627 \u0627\u0644\u0645\u0642\u0635\u0648\u062f \u0628\u0640 CTE \u0641\u064a \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB)\u061f<\/strong> \u062c: \u064a\u064f\u0642\u0627\u0633 \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u0645\u062f\u0649 \u062a\u0645\u062f\u062f \u0623\u0648 \u0627\u0646\u0643\u0645\u0627\u0634 \u0645\u0627\u062f\u0629 \u0644\u0648\u062d \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB) \u0645\u0639 \u062a\u063a\u064a\u0631 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u062a\u0647\u0627.<\/p> <\/div>
\u0633: \u0644\u0645\u0627\u0630\u0627 \u064a\u064f\u0639\u062f \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0644\u0644\u0645\u062d\u0648\u0631 Z \u0645\u0647\u0645\u064b\u0627\u061f<\/strong> \u062c: \u064a\u0624\u062b\u0631 \u062a\u0645\u062f\u062f \u0627\u0644\u0645\u062d\u0648\u0631 Z \u0639\u0644\u0649 \u0633\u0645\u0627\u0643\u0629 \u0627\u0644\u0644\u0648\u062d\u0629\u060c \u0648\u0644\u0647 \u062a\u0623\u062b\u064a\u0631 \u0645\u0628\u0627\u0634\u0631 \u0639\u0644\u0649 \u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0627\u0644\u062b\u0642\u0648\u0628 \u0627\u0644\u0645\u0637\u0644\u064a\u0629 \u0641\u064a \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 \u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0637\u0628\u0642\u0627\u062a.<\/p> <\/div>
\u0633: \u0647\u0644 \u064a\u064f\u0639\u062f \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u0627\u0644\u0623\u0642\u0644 \u062f\u0627\u0626\u0645\u064b\u0627 \u0623\u0641\u0636\u0644\u061f<\/strong> \u062c: \u0644\u064a\u0633 \u062f\u0627\u0626\u0645\u064b\u0627. \u0641\u0627\u0646\u062e\u0641\u0627\u0636 \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u064a\u062d\u0633\u0651\u0646 \u0627\u0644\u062b\u0628\u0627\u062a \u0627\u0644\u0623\u0628\u0639\u0627\u062f\u060c \u0644\u0643\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0641\u0636\u0644 \u0645\u0627\u062f\u0629 \u064a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0648\u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a\u0629 \u0644\u0644\u062a\u0637\u0628\u064a\u0642.<\/p> <\/div>
\u0633: \u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0632\u062c\u0627\u062c\u064a\u0629 (Tg) \u0648\u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE)\u061f<\/strong> \u062c: \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0623\u0642\u0644 \u0645\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u0632\u062c\u0627\u062c\u064a (Tg)\u060c \u064a\u0643\u0648\u0646 \u0627\u0644\u062a\u0645\u062f\u062f \u0645\u0633\u062a\u0642\u0631\u064b\u0627 \u0646\u0633\u0628\u064a\u064b\u0627. \u0623\u0645\u0627 \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0623\u0639\u0644\u0649 \u0645\u0646 Tg\u060c \u0641\u0625\u0646 \u0627\u0644\u0645\u0627\u062f\u0629 \u062a\u062a\u0645\u062f\u062f \u0628\u0633\u0631\u0639\u0629 \u0623\u0643\u0628\u0631 \u0645\u0639 \u062a\u0644\u064a\u064a\u0646 \u0627\u0644\u0631\u0627\u062a\u0646\u062c.<\/p> <\/div>
\u0633: \u0645\u0627 \u0647\u064a \u0645\u0648\u0627\u062f \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB) \u0627\u0644\u062a\u064a \u062a\u062a\u0645\u064a\u0632 \u0639\u0645\u0648\u0645\u064b\u0627 \u0628\u0645\u0639\u0627\u0645\u0644 \u062a\u0645\u062f\u062f \u062d\u0631\u0627\u0631\u064a (CTE) \u0623\u0642\u0644\u061f<\/strong> \u062c: \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u062a\u062a\u0645\u064a\u0632 \u0627\u0644\u0631\u0642\u0627\u0626\u0642 \u0630\u0627\u062a \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0632\u062c\u0627\u062c \u0627\u0644\u0639\u0627\u0644\u064a\u0629 (Tg)\u060c \u0648\u0645\u0648\u0627\u062f \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u064a\u062f\u060c \u0648\u0627\u0644\u0631\u0643\u0627\u0626\u0632 \u0627\u0644\u062e\u0632\u0641\u064a\u0629 \u0628\u0627\u0646\u062e\u0641\u0627\u0636 \u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0645\u0642\u0627\u0631\u0646\u0629\u064b \u0628\u0645\u0627\u062f\u0629 FR4 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629\u060c \u0639\u0644\u0649 \u0627\u0644\u0631\u063a\u0645 \u0645\u0646 \u0623\u0646 \u0627\u0644\u0642\u064a\u0645 \u0627\u0644\u062f\u0642\u064a\u0642\u0629 \u062a\u062e\u062a\u0644\u0641 \u0628\u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629.<\/p> <\/div> <\/div>\n\n\n\n
<\/p>","protected":false},"excerpt":{"rendered":"
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PCB Coefficient of Thermal Expansion Explained<\/title>\n<meta name=\"description\" content=\"what the coefficient of thermal expansion (CTE) means in PCB materials, how it affects reliability, multilayer PCB performance, and why CTE is important when selecting laminates.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.han-sphere.com\/ar\/blog\/news\/pcb-coefficient-of-thermal-expansion\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PCB Coefficient of Thermal Expansion Explained\" \/>\n<meta property=\"og:description\" content=\"what the coefficient of thermal expansion (CTE) means in PCB materials, how it affects reliability, multilayer PCB performance, and why CTE is important when selecting laminates.\" \/>\n<meta property=\"og:url\" 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What is CTE in a PCB?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: CTE, or coefficient of thermal expansion, measures how much a PCB material expands or contracts as its temperature changes.\",\"inLanguage\":\"ar\"},\"inLanguage\":\"ar\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716054874\",\"position\":2,\"url\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716054874\",\"name\":\"Q: Why is Z-axis CTE important?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Z-axis expansion affects the thickness of the board and has a direct impact on plated through-hole reliability in multilayer PCBs.\",\"inLanguage\":\"ar\"},\"inLanguage\":\"ar\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716065419\",\"position\":3,\"url\":\"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716065419\",\"name\":\"Q: Is a lower CTE always better?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Not always. 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\u0627\u0644\u0631\u0642\u0627\u0626\u0642.","breadcrumb":{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716041539"},{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716054874"},{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716065419"},{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716079465"},{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716091358"}],"inLanguage":"ar","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/"]}]},{"@type":"ImageObject","inLanguage":"ar","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#primaryimage","url":"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Coefficient-of-Thermal-Expansion.jpg","contentUrl":"https:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Coefficient-of-Thermal-Expansion.jpg","width":600,"height":400,"caption":"PCB Coefficient of Thermal Expansion"},{"@type":"BreadcrumbList","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.han-sphere.com\/"},{"@type":"ListItem","position":2,"name":"PCB Coefficient of Thermal Expansion Explained"}]},{"@type":"WebSite","@id":"https:\/\/www.han-sphere.com\/#website","url":"https:\/\/www.han-sphere.com\/","name":"\u0647\u0627\u0646\u0633\u0641\u064a\u0631","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.han-sphere.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ar"},{"@type":"Person","@id":"https:\/\/www.han-sphere.com\/#\/schema\/person\/a8f2356806898d33a9f431801140e422","name":"\u0647\u0627\u0646\u0633\u0641\u064a\u063101","sameAs":["http:\/\/www.han-sphere.com\/"],"url":"https:\/\/www.han-sphere.com\/ar\/author\/hansphere01\/"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716041539","position":1,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716041539","name":"\u0633: \u0645\u0627 \u0627\u0644\u0645\u0642\u0635\u0648\u062f \u0628\u0640 CTE \u0641\u064a \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB)\u061f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: CTE, or coefficient of thermal expansion, measures how much a PCB material expands or contracts as its temperature changes.","inLanguage":"ar"},"inLanguage":"ar"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716054874","position":2,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716054874","name":"\u0633: \u0644\u0645\u0627\u0630\u0627 \u064a\u064f\u0639\u062f \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0644\u0644\u0645\u062d\u0648\u0631 Z \u0645\u0647\u0645\u064b\u0627\u061f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Z-axis expansion affects the thickness of the board and has a direct impact on plated through-hole reliability in multilayer PCBs.","inLanguage":"ar"},"inLanguage":"ar"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716065419","position":3,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716065419","name":"\u0633: \u0647\u0644 \u064a\u064f\u0639\u062f \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE) \u0627\u0644\u0623\u0642\u0644 \u062f\u0627\u0626\u0645\u064b\u0627 \u0623\u0641\u0636\u0644\u061f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Not always. Lower CTE improves dimensional stability, but the best material depends on the overall electrical, thermal, mechanical, and cost requirements of the application.","inLanguage":"ar"},"inLanguage":"ar"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716079465","position":4,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716079465","name":"\u0633: \u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0632\u062c\u0627\u062c\u064a\u0629 (Tg) \u0648\u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a (CTE)\u061f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Below the glass transition temperature (Tg), expansion is relatively stable. Above Tg, the material expands more rapidly as the resin softens.","inLanguage":"ar"},"inLanguage":"ar"},{"@type":"Question","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716091358","position":5,"url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#faq-question-1784716091358","name":"\u0633: \u0645\u0627 \u0647\u064a \u0645\u0648\u0627\u062f \u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB) \u0627\u0644\u062a\u064a \u062a\u062a\u0645\u064a\u0632 \u0639\u0645\u0648\u0645\u064b\u0627 \u0628\u0645\u0639\u0627\u0645\u0644 \u062a\u0645\u062f\u062f \u062d\u0631\u0627\u0631\u064a (CTE) \u0623\u0642\u0644\u061f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: High-Tg laminates, polyimide materials, and ceramic substrates generally provide lower thermal expansion than standard FR4, although exact values vary by manufacturer.","inLanguage":"ar"},"inLanguage":"ar"},{"@type":"HowTo","@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#howto-1","name":"\u0634\u0631\u062d \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u0645\u062f\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0644\u0644\u0648\u062d\u0627\u062a \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0645\u0637\u0628\u0648\u0639\u0629 (PCB)","mainEntityOfPage":{"@id":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/"},"description":"","step":[{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#how-to-step-1784715996248","name":"Step 1","itemListElement":[{"@type":"HowToDirection","text":"Identify the highest assembly and operating temperatures the PCB will experience."}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#how-to-step-1784716001044","name":"Step 2","itemListElement":[{"@type":"HowToDirection","text":"Review the laminate manufacturer's CTE data in all three directions, especially the Z-axis."}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#how-to-step-1784716006432","name":"Step 3","itemListElement":[{"@type":"HowToDirection","text":"Compare CTE together with Tg, dielectric properties, and mechanical performance."}]},{"@type":"HowToStep","url":"https:\/\/www.han-sphere.com\/blog\/news\/pcb-coefficient-of-thermal-expansion\/#how-to-step-1784716013630","name":"Step 4","itemListElement":[{"@type":"HowToDirection","text":"Confirm the material choice with your PCB manufacturer before finalizing the stackup."}]}],"inLanguage":"ar"}]}},"_links":{"self":[{"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/posts\/1249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/comments?post=1249"}],"version-history":[{"count":2,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/posts\/1249\/revisions"}],"predecessor-version":[{"id":1273,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/posts\/1249\/revisions\/1273"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/media\/1269"}],"wp:attachment":[{"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/media?parent=1249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/categories?post=1249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.han-sphere.com\/ar\/wp-json\/wp\/v2\/tags?post=1249"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\u0645\u0639\u0627\u0645\u0644](\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Coefficient-of-Thermal-Expansion-1.jpg\")
<\/figure>\n<\/div>\n\n\n![\"\u0645\u0639\u0627\u0645\u0644](\"http:\/\/www.han-sphere.com\/wp-content\/uploads\/2026\/07\/PCB-Coefficient-of-Thermal-Expansion-2.jpg\")
<\/figure>\n<\/div>\n\n\n