Electronics Forum | Thu Feb 10 13:01:29 EST 2000 | Wolfgang Busko
Hi Russ, yes, I did get the homeplate info, thanks. Thought that it looks that way, only didn�t know how to deal with that expression. Now your problem: it�s hard to tell without seeing it actually. All I wonder is this 80sec above liquidous, at what
Electronics Forum | Wed Dec 13 14:15:54 EST 2000 | Chris
I have a product where an IC is soldered using a stencil which puts down way too much paste. The result is massive bridging. Anyway, one of my coworkers claimed he could eliminate the bridging by baking the circuit board in an oven for 5 min at 90
Electronics Forum | Wed Mar 14 11:51:24 EST 2001 | fmonette
Popcorning is the common designation for defects related to the moiture sensitivity of plastic molded components, like PBGAs. The plastic body of these parts will absorb moisture from the ambiant atmosphere on your factory floor. If a critical level
Electronics Forum | Sat Oct 09 04:17:21 EDT 1999 | Brian
| Can anyone tell me the formula/method to determine | the amount of weight that solder's surface tension can support. | (ie: Maximum weight of components soldered onto a bottom side | of a board during a top side reflow on a Paste/Paste process). |
Electronics Forum | Sat Oct 09 07:33:23 EDT 1999 | Dave F
| | Can anyone tell me the formula/method to determine | | the amount of weight that solder's surface tension can support. | | (ie: Maximum weight of components soldered onto a bottom side | | of a board during a top side reflow on a Paste/Paste proc
Electronics Forum | Wed Sep 29 23:54:07 EDT 1999 | Dreamsniper
Hi everyone, Greetings! I�ve got a 2-layered through-hole PCB�s having the following problems: Solder Mask peels after wave soldering at random locations and only at the bootom side of the PCB Insufficient Solder and some solder never make it to t
Electronics Forum | Thu Oct 15 13:55:43 EDT 1998 | Steve A
Dave, The first step would be to learn to accept the residue. IPC class 2 has no problem with it. If that is not possible, I am not sure why a no clean is necessary- but I will take your work for it. Alcohols will dry out the residue, and turn it
Electronics Forum | Thu Oct 15 16:39:07 EDT 1998 | Dave F
Steve: I thought Kyzen products were "additives" to either aqueous or semiaqueous inline or batch machine cleaning processes. I'm trying to clean the no-clean residue from a few components that can not bear to see water. Can you use Kyzen products
Electronics Forum | Thu Oct 15 16:41:28 EDT 1998 | Dave F
| | All Y'll | | | | How do you clean components that must be added to an assembled board after water wash? | | | | BACKGROUND | | | | Our basic process goes like this: | | | | 1 Print paste with OA flux, place, reflow, wash | | 2 Repeat 1 | |
Electronics Forum | Sat Oct 17 10:50:11 EDT 1998 | mike
| | | All Y'll | | | | | | How do you clean components that must be added to an assembled board after water wash? | | | | | | BACKGROUND | | | | | | Our basic process goes like this: | | | | | | 1 Print paste with OA flux, place, reflow, wash |
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