Electronics Forum: adding (Page 116 of 125)

Re: Humidity control in assembly area.

Electronics Forum | Wed May 03 20:04:21 EDT 2000 | Dave F

Joe: Hey, just hose everyone down with water when your humidity starts to decrease to below 40%. ;-) Actually, that�s how some humidity controllers work, when added to your heating system. Well basically that�s how they work. I�m not tryin� to

Lead Free Process

Electronics Forum | Fri Jul 06 12:07:07 EDT 2001 | nwyatt

I have been researching lead-free paste for a while now and I will share with you what I can. Firstly, SnAgCu seems to be the common industry choice. It really depends on your application - the cell phone/pda sector is primarly using different comb

Multitroniks, Quad System and Tyco Info

Electronics Forum | Fri Aug 03 15:20:18 EDT 2001 | stmerkt

The press release attached below provides some insight into the direction Tyco is planning to head with the Automation Group. For Immediate Release Tyco Electronics Expands Automation Group; Offers Quad Systems Assembly Equipment Quad Systems

Re: un-tested assembled circuit reject rates

Electronics Forum | Tue Dec 07 14:21:41 EST 1999 | Brian W.

In my experience, the most commonly accepted theory is that 100% inspection is only 80% effective AT BEST. That means that if your inspoectors are happy, noy outside concerns, well-rested, etc, they will catch 80% of the defects. This number goes d

Re: Help!

Electronics Forum | Tue Sep 28 06:33:43 EDT 1999 | Earl Moon

| | | | I'm trying to start a small SMT contract shop and I need | | | | assistance in selecting equipment. Quad seems to be the | | | | leader but if there is something else out there that can | | | | better suit me please let me know. My shop star

uBGA Square Pads or Lands

Electronics Forum | Fri Jul 16 14:05:04 EDT 1999 | Jim Blankenhorn

| | | Hi all , | | | | | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | | | | | 1. Is underfill required for micro-BGAs? | | | | | | 2. What type of stencil apertures are t

Re: Pin Hole/Blow Hole - Causes and cure please

Electronics Forum | Fri Jun 25 01:11:31 EDT 1999 | Vinesh Gandhi

| | | Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody

Re: HASL - again?

Electronics Forum | Fri Jun 18 13:55:44 EDT 1999 | Earl Moon

| | Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave revi

Re: HASL - again?

Electronics Forum | Mon Jun 21 09:58:25 EDT 1999 | Christopher Cross

| | Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave revi

Re: Repair of SMT boards...a question!!

Electronics Forum | Mon Jun 07 10:57:31 EDT 1999 | Dave F

| | | | Where I can find some informations about repairing of SMT boards? | | | | | | | | Thanks | | | | | | | | Marcos | | | | | | | A first place to start is IPC's 7711 and 7721 encompasing repair, modification, and rework procedures. | | | |


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