Electronics Forum: 10 (Page 486 of 1925)

silver pads, reflow charateristics??

Electronics Forum | Thu Jan 16 10:18:53 EST 2003 | burb1999

I have heard that the profiles are pretty much the same but I have a visible solder joint difference... might half to start looking at the plating, might be something with that?

L-60 problems?

Electronics Forum | Tue Nov 02 01:15:15 EST 2004 | George

We had problems with every part of the machines. We now have a Philips Topaz, and have been running 10 months now with no problems.

Stenciling chipbonder.....

Electronics Forum | Thu Jan 23 10:56:57 EST 2003 | slthomas

Re: Brews: I'll remember that. Ob. Tech. Reply: #1) No. #2) You're right not to believe that. #3) There you go thinking logically again....STOP THAT. #4) That is an unknown. Didn't I tell you about all this already? check your email.

Placement Equipment

Electronics Forum | Fri Jan 31 12:22:10 EST 2003 | TN

Many companies used the Fuji CP-4 and CP-6 chip shooters, these are good for the small components like resistors, caps, diodes, transistors and small IC's. If you have BGA, QFP or other larger odd components you will need to go with another type of

BT material properties

Electronics Forum | Sun Feb 02 10:00:55 EST 2003 | davef

Mitsubishi Gas & Chemical's Bismaleimide-Triazine (BT) resin laminates are the defacto standard material for BGA. Have you checked with them?

Maximum Rework per Board

Electronics Forum | Mon Feb 03 10:55:15 EST 2003 | mantis

would the accumlative overall cost of repair not govern the amount of rework that can be performed. so that if aboard costs 5 dollars to repair and sells for 7 then the amount of effort and time cosumed would not warrent the repair in the first place

Vacuum Sealer

Electronics Forum | Mon Feb 03 10:03:30 EST 2003 | ksfacinelli

What are people using for re-vacuum sealing of opened parts. The parts of coarse would be baked out prior to sealing. The system should be ESD compliant. Need some help, Kevin

Vacuum Sealer

Electronics Forum | Tue Feb 04 10:18:15 EST 2003 | smsinc

Check out GPD(General Production Devices), they have a tabletop Nitrogen bagger/sealer. 1-800-pick-gpd.

bulk feeding chips

Electronics Forum | Mon Feb 03 10:28:21 EST 2003 | gregp

The advantages of bulk feeding vs. tape and reel are numerous. Who is currently employing bulk feeding? If you are, what is the application (HVLM, etc..)? If you are not, why not? I am leaving this question very open initially in order to recieve a

double sided reflow criteria

Electronics Forum | Tue Feb 04 00:07:10 EST 2003 | MA/NY DDave

Hi David F Now I clicked on Phil's site and only got the front page. How do I or others get to the beef of this particular topic. Phil is funny and fast YiE, DDave


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