Electronics Forum: index (Page 1371 of 7927)

Re: PCB Support

Electronics Forum | Tue Nov 30 12:20:35 EST 1999 | Wolfgang Busko

Hi Steve, is it possible for you to get more than one PCB in a panel and separate them after assembly. Some kind of framepiece for support at the affected edge later to be separated should do it as well. My first ideas Wolfgang

Re: PCB Support

Electronics Forum | Tue Nov 30 17:04:34 EST 1999 | Dave F

Continuing, many soldering pallet manufacturers make pallets with pockets to support bottom-side components during second side processing. Good luck Dave F

Re: PCB Support

Electronics Forum | Sat Dec 04 09:46:25 EST 1999 | Chris McDonald

We had a simular problem We used EMC GLobal Technologies. Basically had carriers mad for small cards. It worked well and we could reflow and wahs the pallets too.

Re: stand-up axial resistors

Electronics Forum | Tue Nov 30 12:05:24 EST 1999 | Wolfgang Busko

Hi, you could try "www.streckfuss.com". I can�t imagine what is meant by "fairly inexpensive". That kinda stuff you can get used, maybe someone does have one of these dustcollectors laying around. good luck Wolfgang

Re: stand-up axial resistors

Electronics Forum | Tue Nov 30 18:20:02 EST 1999 | Brian W.

It is also possible to use standoffs to provide the board spacing. There are permanent types and washaway types. This eliminates the need for special prepping of components. The operator slides the bead over the lead prior to installation. I have

patchproblem lifted lead

Electronics Forum | Tue Nov 30 11:51:54 EST 1999 | Wolfgang Busko

Hi all, a lifted lead (FP 0,5mm pitch) with a wire soldered to it needs proper protection against tear off. What kind of coating is appropriate, should be dispensable and fast drying. Thanks in advance Wolfgang

Re: patchproblem lifted lead

Electronics Forum | Tue Nov 30 13:20:07 EST 1999 | John Thorup

Hello Wolfgang Try looking in the process guides section of Circuit Technologies web site. Their recomendation is to bond the jumper wire to the board within 6mm of the lead with hot melt glue, cyanoacrylic glue or adhesive dots. John Thorup

Re: patchproblem lifted lead

Electronics Forum | Tue Nov 30 16:55:51 EST 1999 | Dave F

Wolfgang: Made a mess of things now, eh??? Try: Masterbond Product UV15-7TK1A Dymax 911 Ta Dave F

Re: patchproblem lifted lead

Electronics Forum | Tue Nov 30 18:33:05 EST 1999 | Brian W.

I have used Loctite, RTV3145, or Tak-Pak to secure the wire. As John said, the wire is usually secured to the board near the lifted lead, and usually at 1/4 inch intervals along the way. Brian W.

PCB failure analysis lab

Electronics Forum | Tue Nov 30 11:05:37 EST 1999 | Bob Smith

Hi, Can anyone give me the name & address etc. of a lab that will section PCBs and analyze defects? Thanks. Bob


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