PCB - FAQ & Co.

Here you can find several frequently asked questions and answers about our printed circuit boards. You may browse through the categories or use the search. If your question remains unanswered, please contact us by email, phone or contact form. We will reply you as soon as possible.

FAQ:

1. What are buried vias?

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2. What are blind vias?

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3. What is the customs number (TARIC-code) for unassembled PCBs?

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4. How does sea-air-freight work?

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5. What do the international abbrevations FOB, CIF, DDU etc. stand for?

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6. What is the Epsilon (ɛ) value?

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7. What are the CTI-values of different base materials?

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8. What signifies the CTI-value?

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9. What are unrouted traces or air wires?

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10. What is a cauterisation allowance?

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11. What does HAL stand for?

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12. What is nibbling?

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13. What is packaging?

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14. Are legend print, silk print, mounting print and position print the same?

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    Yes, all these prints used for displaying names and information are applied with the screen printing method.

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15. From where does the term „aperture list“ derive?

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16. Are hard gold, connector strip gold and galvanic gold the same?

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17. What are aperture lists?

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18. What is the difference between Basic Gerber and Extended Gerber?

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19. Are chemical nickel-gold and hard gold the same?

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20. What is masking lacquer or peelable mask?

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21. What is Via-filling?

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22. What does the abbrevation „Tg“ stand for concerning base materials?

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23. What does the abbrevation FR mean concerning base material for PCBs?

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24. What different types of FR materials exist?

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25. What is checked during the E-Test?

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26. Is it possible to order printed circuit boards (PCB) mit UL-certification?

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27. When is the UL-certification required?

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Additional information about Printed Circuit Boards (PCBs):

• wikipedia.org
  Online Encyclopedia - Topic PCBs
• www.vde.com
  VDE - Verband Elektrotechnik Elektronik Informationstechnik e.V.
• www.vdi.de
  VDI - Verein deutscher Ingenieure
• www.vdlev.org
  VDL - Verband der Leiterplattenindustrie
• www.zvei.de
  ZVEI - Zentralverband Elektrotechnik- und Elektronikindustrie e.V.
• www.leuze-verlag.de
  Leuze Verlag - Literature about PCBs and PCB production
• www.elektronikpraxis.vogel.de
  Elektronik Praxis - Magazine covering electronics in general and news in the PCB production industry.
• www.elektor.de
  Elektor - Electronics Magazine with manuals and layouts for home made PCBs and PCBAs
• www.ibfriedrich.com (Target 3001)
  The Engineering office Friedrich has been developing layout and CAD software for PCB design and Application Oriented Special Integrated Circuits (ASICs) since 1989.
• www.cadsoft.de
  CadSoft offers user-friendly, powerful, and inexpensive solutions for PCB designs including circuit diagrams, layouts, and autorouting routines.
• http://news.google.de/news
  Worldwide news about Printed Circuit Boards (PCBs)