{"id":25566,"date":"2026-05-18T10:23:20","date_gmt":"2026-05-18T02:23:20","guid":{"rendered":"https:\/\/www.bestpcbs.com\/blog\/?p=25566"},"modified":"2026-05-18T15:47:49","modified_gmt":"2026-05-18T07:47:49","slug":"ceramic-pcb-faq","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2026\/05\/ceramic-pcb-faq\/","title":{"rendered":"Ceramic PCB FAQ"},"content":{"rendered":"
<\/div>\n
\"Ceramic<\/a><\/figure>\n\n\n
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Thick Film Ceramic PCB Technical FAQ\u2019s<\/h2>\n
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1. What is the standard thickness of a thick-film ceramic board? +<\/span><\/div>\n
0.635mm<\/div>\n<\/p><\/div>\n
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2. What is the maximum size of thick film ceramic PCB? +<\/span><\/div>\n
114mm x 114mm<\/div>\n<\/p><\/div>\n
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3. What is the commonly referred name for the solder mask used on thick film ceramic PCB? What colors are available? +<\/span><\/div>\n
It is called glass glaze, and the available colors are greenish-blue\/blue.<\/div>\n<\/p><\/div>\n
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4. What is the surface treatment for thick film ceramic PCB? +<\/span><\/div>\n
No additional surface treatment is required.<\/div>\n<\/p><\/div>\n
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5. How many types of substrates are typically used for thick film ceramic PCB? What are they? +<\/span><\/div>\n
There are 3 types: Alumina, Aluminum Nitride, and Beryllium Oxide.<\/div>\n<\/p><\/div>\n
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6. What are the color differences between the three substrates used in thick film ceramic PCB? +<\/span><\/div>\n
Alumina and Beryllium Oxide are white, while Aluminum Nitride is gray.<\/div>\n<\/p><\/div>\n
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7. How many types of Alumina substrates are there? +<\/span><\/div>\n
96% Al\u2082O\u2083 and 99% Al\u2082O\u2083.<\/div>\n<\/p><\/div>\n
\n
8. How are Alumina, Aluminum Nitride, and Beryllium Oxide written in English? +<\/span><\/div>\n
Alumina: Aluminium Oxide\/Alumina; Aluminum Nitride: Aluminium Nitride; Beryllium Oxide: Beryllium Oxide.<\/div>\n<\/p><\/div>\n
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9. What are the dielectric constants of Alumina, Aluminum Nitride, and Beryllium Oxide? +<\/span><\/div>\n
96% Al\u2082O\u2083: 8.9; 99% Al\u2082O\u2083: 9.5; AlN: 8.9; BeO: 6.4.<\/div>\n<\/p><\/div>\n
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10. What conductor pastes are commonly used for thick film ceramic PCB? +<\/span><\/div>\n
AgPd and Au.<\/div>\n<\/p><\/div>\n
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11. What are the typical thicknesses of the conductor pastes for thick film ceramic PCB? +<\/span><\/div>\n
AgPd: \u226510\u00b5m, Au: 3-7\u00b5m.<\/div>\n<\/p><\/div>\n
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12. Can copper be used as a conductor on thick film ceramic PCB? +<\/span><\/div>\n
No.<\/div>\n<\/p><\/div>\n
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13. Are the circuits on thick film ceramic PCB created using printing or etching processes? +<\/span><\/div>\n
They are created using a printing process.<\/div>\n<\/p><\/div>\n
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14. How are the conductor paste and ceramic material bonded together? +<\/span><\/div>\n
Through high-temperature sintering.<\/div>\n<\/p><\/div>\n
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15. What is the peak sintering temperature for the conductor on thick film ceramic PCB? +<\/span><\/div>\n
850\u00b0C \u00b1 10\u00b0C.<\/div>\n<\/p><\/div>\n
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16. What is the dwell time at peak temperature? +<\/span><\/div>\n
8 minutes to 10 minutes.<\/div>\n<\/p><\/div>\n
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17. What is the sintering cycle time? +<\/span><\/div>\n
30 minutes to 60 minutes.<\/div>\n<\/p><\/div>\n
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18. What is the operating temperature of thick film ceramic PCB? +<\/span><\/div>\n
-55\u00b0C to 850\u00b0C.<\/div>\n<\/p><\/div>\n
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19. Do thick film ceramic PCB require an insulating material between the conductor and substrate? +<\/span><\/div>\n
No, ceramic materials are inherently insulating.<\/div>\n<\/p><\/div>\n
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20. Can thick film ceramic PCB be screen-printed? +<\/span><\/div>\n
Yes, but it is generally not done as it is quite complex to manufacture.<\/div>\n<\/p><\/div>\n
\n
21. What is the minimum line width and spacing for thick film ceramic PCB? +<\/span><\/div>\n
For samples: 0.2\/0.2mm, for mass production: \u22650.25\/0.25mm.<\/div>\n<\/p><\/div>\n
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22. Can resistors be sintered on thick film ceramic PCB? What method is commonly used? +<\/span><\/div>\n
Yes, laser trimming is commonly used.<\/div>\n<\/p><\/div>\n
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23. Can thick film ceramic PCB be bonded? +<\/span><\/div>\n
Yes.<\/div>\n<\/p><\/div>\n
\n
24. Can thick film ceramic PCB be made with double-sided multilayers? +<\/span><\/div>\n
Currently, no. Only single-sided multilayers are possible.<\/div>\n<\/p><\/div>\n
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25. Can thick film ceramic PCB have through-holes? +<\/span><\/div>\n
Yes, but only using special silver paste.<\/div>\n<\/p><\/div>\n
\n
26. Can thick film ceramic PCB with gold paste conductors have through-holes? +<\/span><\/div>\n
No, through-holes must be made with special silver paste, as silver paste and gold paste are incompatible.<\/div>\n<\/p><\/div>\n
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27. Can thick film ceramic PCB be panelized? +<\/span><\/div>\n
Yes.<\/div>\n<\/p><\/div>\n
\n
28. How are panelized thick film ceramic PCB separated? +<\/span><\/div>\n
They can be separated using tools like pliers or by hand-breaking.<\/div>\n<\/p><\/div>\n
\n
29. How are holes drilled in ceramic boards? +<\/span><\/div>\n
They are drilled using a laser.<\/div>\n<\/p><\/div>\n
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30. Do ceramic boards absorb water? +<\/span><\/div>\n
No, they are non-absorbent.<\/div>\n<\/p><\/div>\n
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31. How are ceramic boards typically packaged? +<\/span><\/div>\n
Vacuum packaging or in blister trays.<\/div>\n<\/p><\/div>\n
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32. If the AgPd conductor on thick film ceramic PCB oxidizes, how can it be handled? +<\/span><\/div>\n
The surface can be rubbed with an eraser.<\/div>\n<\/p><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Thick Film Ceramic PCB Technical FAQ\u2019s 1. What is the standard thickness of a thick-film ceramic board? + 0.635mm 2. What is the maximum size of thick film ceramic PCB? + 114mm x 114mm 3. What is the commonly referred name for the solder mask used on thick film ceramic PCB? What colors are available? […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[5694,1],"tags":[22,3320],"class_list":["post-25566","post","type-post","status-publish","format-standard","hentry","category-technical-faqs","category-uncategorized","tag-ceramic-pcb-2","tag-faqs"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t