Electronics Forum: substrate (Page 1 of 56)

lead substrate materials

Electronics Forum | Tue Jan 29 09:19:56 EST 2002 | bob_smith

Can someone tell me what metal substrates are comonly used for component leads with gold plating? If the gold plating is missing, are any of the substates incompatible with 63/37 solder? Thanks.

halogen free substrate

Electronics Forum | Tue Oct 29 11:20:17 EST 2002 | nifhail

Guys, Has anyone considered the specific use of Halogen free substrates for enhanced PCB performance? What is the impact on the PCB price ? Pls help.thank you in advance.

lead substrate materials

Electronics Forum | Tue Jan 29 20:14:54 EST 2002 | davef

Please help us understand your situation better by describing the following: * Component [ie, PTH/SMT, type of component, lead finish you expected/ received, etc.] * Board type [ie, type of board FR-4/CEM/ceramic, etc.] * Solderability protection on

SMT on ceramic substrate

Electronics Forum | Wed Aug 22 21:00:41 EDT 2001 | dlkearns1

Yes, it is very true and very clean SNAP!

halogen free substrate

Electronics Forum | Thu Oct 31 11:23:32 EST 2002 | yngwie

Any input to my question ?

SMT on ceramic substrate

Electronics Forum | Mon Aug 27 10:09:50 EDT 2001 | gresko

Steve, Depending on the type of equipment you are using for P&P you may want to consider placing and processing the substrates in Auer boats. I have provided many applications for ceramic substarate users using purchased Auer boats or machined palle

PCB's using Kevlar substrate

Electronics Forum | Mon May 06 11:37:00 EDT 2002 | dwboost

Our company specializes in quick turn Printed Circuit Boards; prototype and short run quantities. A customer has inquired about using Kevlar as the substrate. Can anyone give us the name of a supplier of Kevlar? Is the production process compatible w

SMT on ceramic substrate

Electronics Forum | Wed Aug 22 18:51:48 EDT 2001 | stefo

Hi ya'll, We may be getting some business here for a small (2" X 2"),ceramic substrated, double-sided SMT assembly. I've done ceramic substrates with SMT in the past, but not double-sided, and as packed as this thing will be... My question is, can

SMT on ceramic substrate

Electronics Forum | Sat Aug 25 13:24:37 EDT 2001 | btaylor

We have used scribed ceramic from CoorsTek for many years with no problem. You will have to control your scribe depth so not to break it during processing. If you have any more question you can e-mail me.

lead substrate materials

Electronics Forum | Wed Jan 30 09:10:48 EST 2002 | bob_smith

Hi Dave, Sorry about that. Specifically, I am referring to radial leads on a crystal. The leads are supposed to be gold plated but only 1/2 to 2/3 of the lead is plated. We bend the lead to form a foot which is soldered to a pad on the PCB. Normally

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