Electronics Forum: index (Page 5386 of 7894)

Re: This is a Test... It Sure Is

Electronics Forum | Wed Jun 03 18:58:39 EDT 1998 | Steve Gregory

| | | | | | | Hi there...I'm testing....is anybody else having problems posting messages?....this is a test... | | | | | | OOPS! I guess it's working now...hmmmmm... | | Steve: Stop!!! Breath deeply. Good. Now is there anything you want to tell

Vertically Mounting of a PWA to a PWA

Electronics Forum | Wed Jun 03 10:30:18 EDT 1998 | Daniel Shea

I need ideas for mounting without a connector a small pwa daughter card vertically to another pwa. I have seen u shaped clips for the edge of the card which allow you to insert and wave solder the card into the mother board. How are these clips atom

Re: Double sided smt

Electronics Forum | Sun Jun 07 06:05:37 EDT 1998 | Bob Willis

| Can anyone tell me if there is a reference for smt component height specs on the bottom side of a board, which will also go through wave soldering. A current design I am reviewing has tant caps(7343) and a crystal on the back side. Should I only b

Minimizing Board Warpage During Reflow

Electronics Forum | Tue Jun 02 20:26:17 EDT 1998 | Anthony

Does anybody know if a contraption exists that will minimize a PCB's tendency to become slightly bent after reflow? We have a new product that we're planning to assemble in a couple of months. The board is 9.7" by 13.4" and it is imperitive that we

BGA ASSY. Questionnaire

Electronics Forum | Mon Jun 01 00:46:14 EDT 1998 | S. S. Bist

We have few questions for BGA assembly. Specially with Fuji machines. 1. What are the testing mechanism other then X-rays. 2. How we get data from Fuji to check repeatability and reproducibility in terms of percentage and how it as calculated. 3. Do

CCGA

Electronics Forum | Fri May 29 14:25:51 EDT 1998 | Earl Moon

Got handed an assignment for which I'm not totally qualified. Don't expect this forum to had me all the answers. Some answers are obvious as the device types are fairly self explanatory. As everyone knows, IBM had problems with their ceramic BGA dev

Re: How to clean a Entek Coating Board

Electronics Forum | Fri May 29 14:22:27 EDT 1998 | Chrys

| Does anyone out there can let me know how to clean a Entek Coating Board if I have a misprint during solder paste printing? According to the guys at Enthone, squeegee most of the paste off, then use Kyzen Lonox (which only removes 3% of the coating

Re: Surface Mount Solder Balling

Electronics Forum | Wed Jun 03 08:46:32 EDT 1998 | Ryan Jennens

Thanks everybody for the help! We are still working on the bottom side, but the top side solder balling seems to have gone away for now. We flattened out the middle soak zone of the profile, so that rather than an even ramp up, the board heats quick

reflow theta alignment

Electronics Forum | Fri May 29 12:30:03 EDT 1998 | Jason Gregory

Hi everyone, this is my first time on this forum. I've only been an innocent bystander. Until now. I wonder if anyone out there knows of any technical publication (accessible over the net) that explains, in detail, the actual physics involved regardi

SMT Pick and Place

Electronics Forum | Thu May 28 10:57:10 EDT 1998 | John

Our company is currently looking to implement a SMT production line. What I am looking for is feedback on people's experiences with various machines. Here's what we are in the market for: Low/Mid volume 3,000+cph machine that can handle high job fle


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