Electronics Forum: parts (Page 856 of 1117)

Re: Bridge on BGA

Electronics Forum | Fri Aug 20 14:51:55 EDT 1999 | Tony

| | | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | | | This is what I did. | | | | | | Created a

Re: Bridge on BGA

Electronics Forum | Fri Aug 20 17:17:14 EDT 1999 | K.T

| | | | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | | | | | This is what I did. | | | | | | | |

Re: Parylene Coating of Plastic Parts

Electronics Forum | Sun Aug 08 04:36:02 EDT 1999 | Brian

Dave Frankly, I think you may be barking up the wrong tree. Like DaveF, I suggest that the process would be horrendously expensive with masking and so on. The $64,000 question is whether what you propose will serve any useful purpose. I venture to

Re: 600 pin BGA Reliability

Electronics Forum | Thu Jul 29 11:14:46 EDT 1999 | Justin Medernach

| I'm working on a prototype board that requires a 600 pin BGA. This is a metal top BGA being placed on a 11" x 17" PCB about .62" thick. | | The part is 1.77" square with a 50 mil pitch and 30 mil bump diameter. The bumps are located on the

Re: BGA collapse during reflow

Electronics Forum | Mon Jul 12 10:21:06 EDT 1999 | Earl Moon

| I need some advice concerning reflow of a BGA-292. Since I am not ready to change my entire process to no-clean, I decided to place the lone BGA-292 on a proto run using our BGA re-work station. The pcb is a moderately dense, single-sided, 8-laye

Re: OEE / Utilization

Electronics Forum | Thu Jun 10 22:09:56 EDT 1999 | Dean

CP4-3 AND IP3 | >CP4-3 AND IP2 | >CP4-3 AND IP3 | >CP4-3 AND IP2 | >CP3 AND IP2 | >CP3 AND IP2 | Question: | Looking for anyone who has this type of mix, equipment and what is your OEE and how do you come up with the numbers. | | I use Unicam Line m

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 19:11:48 EDT 1999 | Earl Moon

| | hello...can somebody help me regarding the POPCORN at Reflow. What is this POPCORN at reflow, what it looks like, its cause and corrective action if there is... | | | | your help is greatly appreciated...thanks | | | | omat marasigan | | | Deo

Re: Ceramic + Hi-temp solder

Electronics Forum | Thu Apr 22 08:43:25 EDT 1999 | Michael N.

| | I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is a

IPC782 and SMT Plus pattern libraries

Electronics Forum | Thu Apr 08 19:32:52 EDT 1999 | Tom Reilly

FYI, Yes, it is true SMT Plus [ http://www.smtplus.com/ ]does not meet IPC 782 standards but is that the goal here or to meet IPC-A-610 standards for manufacturing? I agree that patterns do cause some problems if created to maximum IPC standards but

Re: Adhesion loss on passives over wave

Electronics Forum | Fri Mar 19 07:24:38 EST 1999 | John

| | | | Hi folks, | | | | | | | | I am looking for inputs on a long-standing problem encountered in our shop: Bottom-side parts (passives) falling off in the Wave...where the only remnants of the part is a flattened glue dot of proper diameter and


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