Electronics Forum | Fri Mar 19 15:44:35 EDT 2010 | cisridn
Coins are sometimes used on PCB's with RF Power Field Effect Transistors. These boards are usually mounted in an housing. They provide a ground path for the transistor to the PCB and thermal path to the housing. The coins are usually made of aluminu
Electronics Forum | Tue Sep 10 10:42:36 EDT 2013 | capse
Plasma cleaning is used extensively to clean surfaces prior to wire bonding.
Electronics Forum | Fri Jan 24 09:58:41 EST 2020 | pavel_murtishev
Evtimov, There is no solder mask at all. Material is applied over bare aluminum. Regards
Electronics Forum | Mon Sep 09 15:38:02 EDT 2013 | arendonk
Hi, We are having issues aluminum wirebonding on ENEPIG plated PCB by a too low pull force and or having lifts (1% range). Could any body advice how to solve this problem? Is there a special wire bond grade required? How to best clean contaminant
Electronics Forum | Thu Jan 23 12:43:14 EST 2020 | pavel_murtishev
Hello, There is curious PCB technology used for one aluminum LED PCB. First of all there is no solder mask. PCB tracks look grainy and there is no fillet near components. Tracks near components are thicker. A kind of material has been applied to
Electronics Forum | Fri Oct 23 03:52:38 EDT 2009 | linseeg
What is the different between Rogers 4403 & Rogers 4350? Can we use two different material to build a PCB? If I use Ro4403 as prepreg and Ro4350 as core what is the advantages?
Electronics Forum | Mon Jul 20 11:44:21 EDT 2015 | migliore
Hi, does anybody know the steps for manufacturing a 6-layer PCB? Let's say we have 1 core and 2 pre-pregs. Thank you, Enrico Migliore
Electronics Forum | Thu Jun 08 22:54:31 EDT 2006 | hunghung
Dear all, If a PCB board, 2 mils of core with 1oz copper at the top and bottom, is it a good board to be fabricated? will it be caused warpage during etching for inner layer process? if yes, what is the real factor caused to warpage? How to solve t
Electronics Forum | Wed Feb 25 08:30:44 EST 1998 | Earl Moon
| Happy Holidays All, | I am searching out a vendor (US preferred) who can fabricate a ceramic PCb with etremely fine lines. | Please reply if you are a vendor, or know of one. | Thanks, | Wendy CERAMIC CIRCUITRY Starting with hybrid thick film circ
Electronics Forum | Mon Mar 27 20:52:22 EST 2000 | Dave F
Marc: In printed circuit board fabrication, fabricators place sheets of prepreg between each pair of glass cores. They stack these layers into books. As they heat and press the books, the sheet melts into an epoxy glue. The thickness of the prepr
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