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

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2. When is the UL-certification required?

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3. What is checked during the E-Test?

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

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5. What different types of FR materials exist?

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

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7. What is Via-filling?

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8. What is masking lacquer or peelable mask?

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

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

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11. What are aperture lists?

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

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

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

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15. What is packaging?

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16. What is nibbling?

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17. What does HAL stand for?

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    HAL is an abbreviation for Hot-Air-Leveling. After the boards are immersioned into molten tin, they are extracted and blown with high pressure to remove residues from drillings or routings.

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18. What is a cauterisation allowance?

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19. What are unrouted traces or air wires?

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20. What signifies the CTI-value?

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

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22. What is the Epsilon (ɛ) value?

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23. How does sea-air-freight work?

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

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

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26. What are buried vias?

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27. What are blind vias?

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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)