Electronics Forum: (4) (Page 231 of 630)

Thermal Profilers

Electronics Forum | Tue Jan 29 09:41:52 EST 2008 | d0min0

Hello, we use DataPAQ 6 slots - but after tech guys finally killed their profiler on wave its theirs now last year we used SolderStar neptune, 3-9 slots, but it is too easy to destroy it (4 times in repair...) so finally I started to use SlimKIC 2

WS619LF solder paste

Electronics Forum | Thu Feb 07 05:24:16 EST 2008 | muarty

I would advise that you clean the stencil thoroughly at least every 4 hours, also though it is worth cleaning the stencil top and bottom after any breaktimes. To avoid solder paste drying off in stencil apertures. Best piece of kit I've purchased was

DEK Horizon Underside Stencil cleaner

Electronics Forum | Thu Jan 31 09:00:15 EST 2008 | d0min0

Hi, we have 4 DEK 265 infinity, all with blue underscreen cleaner (with paper rolls), it doesn't make miracles :) but if you have good solvant system (not too much - you flood the paper and not too small) then works OK on some of our DEKs (y 2000) t

BGA Voids

Electronics Forum | Mon Feb 11 17:21:40 EST 2008 | larryd

What causes BGA voids over 25%? Have recommended profile for solder paste, hit 237C for 5 seconds and still get a void on 2% of specific BGA in various locations. BGA is FG676, 1mm pitch, on ImAg using lead free paste OM338 on a 6 layer FR4 PCB.

BGA dropping off the board

Electronics Forum | Fri Feb 15 06:21:34 EST 2008 | marjorie

Thanks for the comments and advice. The rest of the components have good solderability except for the BGA that fell off. Our production is high mix low volume so the quantity was very small. I'll check the pcb lands next time I run. It could be a con

BGA dropping off the board

Electronics Forum | Mon Feb 18 02:08:06 EST 2008 | lococost

4 days seems a lot. You could be losing flux activation causing poor wetting on the enig. Check your suppliers data sheets for paste life. If it was contamination on the PCB, you'ld expect other components to solder badly as well. Try using a bra

0201

Electronics Forum | Fri Feb 22 09:10:51 EST 2008 | mulder0990

AJ, You can use 0402 feeders to place the 0201 parts. I would suggest getting the feeders you are going to use calibrated before trying to run the parts. Also, another good idea is to get some 0.4mm tape leaf covers for the feeders. They will h

QFN20 Solder recommendations

Electronics Forum | Sun Feb 24 10:15:41 EST 2008 | teamcanada

Issue cross talk \Stencil thickness recommendation? 3-4-5 mil Using manufactures recommended paste layout Water soluable vs No clean Paste. Any recommended publications? Only one found so far is Fairchild, recommend NC due to potential cleaning issue

0201 on CP43

Electronics Forum | Mon Mar 17 13:34:05 EDT 2008 | cyber_wolf

I have never heard of this being done. The limitation is the camera. Also, I am not aware of anyone making CP4 nozzles for 0201's. If you want a Fuji that will do 0201's get a CP642 and upgrade the camera, or buy a CP643.(643's are set up for 0201's

CRT 4 CP43

Electronics Forum | Fri Mar 28 15:00:16 EDT 2008 | mmjm_1099

Hello all, I am looking to troubleshoot and old CRT from a CP43 and looking for a schematic. PN# CG-9702-FS. This I am sure is old and might not have anything but hey worth a shot. I already ordered a replacement just looking to repair this old one.


(4) searches for Companies, Equipment, Machines, Suppliers & Information