Electronics Forum | Tue Oct 24 19:40:40 EDT 2000 | Dave F
From the SMTnet Library Terms & Definitions [er whatever they call it] � Emulsion. A material that suppliers build-up on a printing screen to block portions of the screen. The un-blocked (open) portion of the screen define the pattern for depositi
Electronics Forum | Wed Oct 11 10:29:28 EDT 2000 | G. English
Try the following steps : FIRST CHECK THE ARCHIVE for further information, it WILL help you. Step One : What�s the chemical analysis of this white res? Obtain a sample. It could be tin, rosin, or something else??? Step Two : The fastest way I know
Electronics Forum | Sun Oct 08 14:09:45 EDT 2000 | dtm
Ok here's the story...My company has recently started an in house smt line. (we have been mfg thru-hole for years). We hired a smt op and the most of the rest was from reading and previous experiance from other employees/engineers. Our test departmen
Electronics Forum | Fri Oct 06 09:16:10 EDT 2000 | Kev Head
All, We are planning to place a daughter board that has a surface mount relay reflowed onto it already. The reason for doing this is a bit complicated and not worth noting here. The process would consist of first placing the SMT relays onto a mult
Electronics Forum | Thu Sep 28 07:09:01 EDT 2000 | Rich Ziebell
All, We are experiencing extreme difficulties in printing with a water soluble paste. We have tried two major brands of w/s paste and we are seeing the same problems with both. The main issue is the paste is sticking to the blades. We have tried di
Electronics Forum | Fri Sep 22 16:45:32 EDT 2000 | Casimir Budzinski
It realy depends on what no-clean you use, I had on that would get under IC's and not get fully activated it was fine here in the states but when it was shipped over seas the salt air and humidity gave us fits, another we used didnt have that problem
Electronics Forum | Mon Sep 11 09:39:31 EDT 2000 | Chris May
Charlie, Check: a)That your wave is not too high/powerful as this will push up components due to force exerted by mass of solder b)That your conveyor is set at optimimu height so that a) is not required. If conveyor is too high, then the wave will
Electronics Forum | Tue Sep 05 16:04:43 EDT 2000 | Dave F
Pascal: Responding to your questions: 1 Do we have to dry the PCB after cleaning (sic)? Generally, nothing says you have dry the PCB after aqueous cleaning. Along this line, I received several thoughtful responses when I posted a similar thread.
Electronics Forum | Thu Aug 31 04:25:03 EDT 2000 | Chris May
Dougie, If you have square, rectangular etc; shaped PCB's maybe you could have routing between circuits. "V" shaped grooves top and bottom. I found this extremely good especially if the assemblies are wave soldered. No gaps for flowing up and over.
Electronics Forum | Thu Aug 24 15:54:34 EDT 2000 | JAX
Moony, Do you plan on re-joining the forum...., or are you still waiting for management to give you a cut of the profits. It seems to me you would rather pity yourself and trash others than stand up and share what you know. After all, this is jus
