Electronics Forum: does (Page 137 of 882)

Teflon PCBs

Electronics Forum | Mon Oct 08 20:50:37 EDT 2001 | ksfacinelli

What material are you using? There are a great deal of different Teflons (in the family of Teflons) material....is it from Gore or Rodgers???? Does it have aluminum backing?? More information necessary, Kevin

ball attach on flex

Electronics Forum | Mon Oct 15 11:27:48 EDT 2001 | rob_thomas

Hello all, Does anyone have any experience using solder quick preforms for ball attach on Flex? Thanks, Rob

Recognition of small SOT's

Electronics Forum | Wed Oct 17 09:08:48 EDT 2001 | hany_khoga

Dear all: Does anyone know if there is any significance of the small numbers on SOT's. Do they have a special standards. For example I have one with just(A4), can this tell me any useful information? Thankyou. Hany

Solder Paste with/without silver

Electronics Forum | Thu Oct 18 11:20:52 EDT 2001 | furrer

1. Does anyone has seen results for the reliability of Solder Paste containing less than 1% Silver. (It is in use for soldering 0402 components because of Tombstones. 2. Is it common to use eutectic Solder Paste SnPb, without any silver, for regular

Parts on Bottom during top reflow

Electronics Forum | Fri Oct 26 07:55:49 EDT 2001 | Kenny

Does anybody know how I work out how heavy a part I can have on the bottom side of the board while reflowing top. Obviously there is a tie between the footprint in the paste and the surface tension of solder paste, but what is it ?

Thru hole DIP I.C. to convert in SMT

Electronics Forum | Wed Oct 31 11:47:07 EST 2001 | Denis Carrier

We need to convert 150 large 28 pin DIP I.C. for SMT assembly. We mean, bending the leads at 90 degrees apart. Does someone knows where we can go for that ?

Spring holder for SM fixture

Electronics Forum | Wed Oct 31 12:24:21 EST 2001 | Stephen Zhou

We are designing the SM fixture for small PCB, does anybody know where we can get the spring holder which can hold the PCB to the fixture? Who is the manufacture for this part? Thanks in advance. Stephen

Dull joints caused by NiAu PCB surface ?

Electronics Forum | Thu Nov 01 03:10:07 EST 2001 | Brian Sloth Bentzen

Will the gold from some Ni/Au surfaces make the solder joints appear dull and a slightly rugged on the surface ? Does anyone have any experience with this ? Thanks !

Specification for Screw Torques

Electronics Forum | Tue Nov 06 09:09:10 EST 2001 | mzaboogie

Hello Everyone, Does anyone know if there is a specification in exsistance that references screw tourque specifications or is that basically customer driven? Any help would br greatly appreciated. Thanks Christopher Lampron

water soluble marking pen

Electronics Forum | Mon Nov 12 09:52:44 EST 2001 | dennis

Hello! I need some help! Does anyone know marking pen that is water soluble? I want to wash off marker in a cleaning machine using only hot water. I tried many different type of water soluble marking pen, but it did not come off easily.


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