Electronics Forum: pre- (Page 1 of 102)

solder pre-forms

Electronics Forum | Tue May 28 11:34:51 EDT 2002 | bphilips

What types of solder pre-forms are used on connectors?

How important is pre-heating in repair?

Electronics Forum | Fri Jun 19 14:05:12 EDT 1998 | BillChristian

We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions on pre-heating.

Re: How important is pre-heating in repair?

Electronics Forum | Mon Jun 22 21:42:02 EDT 1998 | Dave F

| We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions | on pre-heating. Bill: Some folks we talking about preheating capacitors earlier this month in the threa

How important is pre-heating in repair?

Electronics Forum | Fri Jun 19 14:05:12 EDT 1998 | BillChristian

We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions on pre-heating.

Re: How important is pre-heating in repair?

Electronics Forum | Mon Jun 22 21:42:02 EDT 1998 | Dave F

| We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions | on pre-heating. Bill: Some folks we talking about preheating capacitors earlier this month in the threa

Reflow for the first time

Electronics Forum | Tue Feb 14 10:25:04 EST 2017 | swag

Pre-heat, pre-heat, pre-heat! Swap out your acetylene with some propane. Problem solved. Throw a potato in your solder pot while your at it...

Programming help for GSM

Electronics Forum | Wed Apr 07 18:47:23 EDT 2004 | pdeuel

Thanks to all of you. As it turns out,(pun), the problem was with optimization. The SOT-63 Was being picked with other parts also set to pre orent when orignally this part was not. The program was then optimized. The other parts on the other heads ca

HOW TO REDUCE MACHINE SET-UP TIME???

Electronics Forum | Fri Jun 10 11:49:42 EDT 2005 | davef

Steve, We're not so sure that we've had enough of your rant. You say "I think it is the only place that looked pre-SMT for issues that everyone else just assumes is SMT. Any complete solution to SMT changeover times will look at pre-SMT as much as

Copper Finishes versus Layer Thickness

Electronics Forum | Thu Jan 04 12:51:37 EST 2007 | Board House

Hi Chunks, Starting copper on outer layer with .0007 is 1/2 oz. copper foil. so if starting copper is .0007 and your Board house will plate an additional .0021 mils of copper. which will give you a finished copper weight of .0028 Mils or (2 oz.) Y

dsp shiffting

Electronics Forum | Thu Apr 14 13:53:39 EDT 2005 | jdengler

The board warp is a good place to look. Also: -Are you pre-rotating? -Are you using the largest nozzle possible? Most of the time this ends up being a component slip on the nozzle caused when the part is rotated if not doing pre-rotate, or slippa

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