Electronics Forum: after (Page 571 of 656)

SMT Assembly Line

Electronics Forum | Mon Jun 05 14:01:48 EDT 2006 | Brian

I have used, Siemens, Juki, Fuji, Universal, and Assembleon. All of them can do the job, depending on the machine mix selected. I personally prefer MPM screenprinters, after using both DEK and MPM. BTU, Vitronics, Heller, and Ellectrovert all make

LQFP128 doesn't work when cold

Electronics Forum | Tue May 30 13:50:40 EDT 2006 | Dragan

Hi, I ran into a problem and need a solution. It is a 3cm*4cm*1mm 2 layer PCB (6x6 panel) with a LQFP128 package Microcontroller, a resonator and 2 capacitors. What happens is: When i recieve the assembled pcbs from the assembly plant they wor

LQFP128 doesn't work when cold

Electronics Forum | Tue May 30 17:17:08 EDT 2006 | Dragan

Hi, I ran into a problem and need a solution. It is a 3cm*4cm*1mm 2 layer PCB (6x6 panel) with a LQFP128 package Microcontroller, a resonator and 2 capacitors. What happens is: When i recieve the assembled pcbs from the assembly plant they wor

Poor soldering on fine pitch?

Electronics Forum | Fri Jun 09 12:13:11 EDT 2006 | Chunks

Rob and Pete are both right. "We" had the same problem, with just one manufacturer of the same style QFP (don't want to name names here). We had the same style of QFP from a different manufacture right next to the problematic one on about 3 product

Poor soldering on fine pitch?

Electronics Forum | Wed Jun 14 11:37:44 EDT 2006 | shawnvike

find the problem? Were the parts failing > electrically? Or did someone start prying them > and decide they were too weak? Originally found the problem going through some older assemblies that had failed testing. Poked at leads and found them no

Problems with SN100C in a Soltec Delta C Wave

Electronics Forum | Sat Jun 10 11:16:10 EDT 2006 | Dr. Bocephus H good time budwieser Expert Guru Phd. DDs. Wow!

Yeehaa! there little doggies, y'all just got to mine that there smuckonium or that there, other stuff that fella dr. guru recomends. Doin' that and all yer problems magically dispear. Grant, sounds like you're in a tree like a one balled coon chas

GSM2 Errors

Electronics Forum | Thu Jul 13 02:06:51 EDT 2006 | mika

bypass every pattern steps except 1 of them; the one step that calls for Head# 1 Now start with the first spindle on that head > for ex. no. 1 > save > load the new pattern in Dry cycle!!! > Run/Start. The reason for bypassing the fiducial check i

MPM Hi e

Electronics Forum | Wed Aug 02 15:19:29 EDT 2006 | SWAG

Sounds like air pressure is set O.K. The next thing to check is that the platen surface that the x and y axis ride on is perfectly clean. After that, you should knock the camera off the platen and make sure that all of the small air nozzles are blo

Blistering issue, mixed LF/SnPb process

Electronics Forum | Fri Jul 28 06:16:20 EDT 2006 | pavel_murtishev

Good afternoon, We run mixed LF/SnPb process for most of out products. Most of chip passives have lead free termination and some of them tend towards blistering issue. SnPb solder wets component in very strange way. Wetting phenomena seems to be abn

TP9-2U questions

Electronics Forum | Sun Jul 30 09:17:38 EDT 2006 | tonaxel

Hallo everybody, First of all I want to say that I�m verty impressed about the quality of this forum. I found it a couple of days before and it was already helpful for me. Thanks a lot to all of the editors and posters. I just started with smd and


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