Electronics Forum | Mon Jun 26 23:33:20 EDT 2006 | KEN
We saw this condition over 3 years ago. It sometimes is called "champagne bubbles". The intemetalic formation is interrupted due to the micro voiding reducing mechanical strength. I discovered this on lead free test vehicles for a major computer
Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied
Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar
Electronics Forum | Wed Jan 14 14:58:21 EST 2004 | Gilroy Misquita
I would like to know if there is an International standard for BGA and QFP polarity in trays for pick and place. How are these components placed on trays and is there a polarity of the tray itself? Please feel free to send me an email or reply on t
Electronics Forum | Wed Jan 14 18:33:21 EST 2004 | ex maintain leader
qfp tray one corner on the holder is 45 degree cutted there is the pin 1 bga also one corner is different in the tray at tape packaging I'm not sure, I have seen diferent comissions belong supliers
Electronics Forum | Thu Jan 15 12:55:03 EST 2004 | James
Polarity in tape and reel is usually always on the bottom left side. And that is correct for the trays, they have a corner taken out where the polarity goes. Hope that helps........
Electronics Forum | Fri Jul 12 13:02:22 EDT 2002 | rocco
Hello !! One basic question ....Which pitch is considered micro BGA ? Thanks !!
Electronics Forum | Wed Nov 06 12:52:24 EST 2002 | Chris Lampron
Hello Everyone, I have been noticing a trend. Many tray packaged parts are now being supplied with velcro straps to secure the trays. Am I wrong in thinking that this is a major source of static electricity? All of these components are BGA, QFP, TSOP
Electronics Forum | Mon Jul 15 17:35:42 EDT 2002 | davef
Micro BGA � (�BGA�). A Tessera brand name for a fine [0.5 mm and 0.75 mm solder ball] pitch BGA.
Electronics Forum | Fri Jul 12 10:54:17 EDT 2002 | pr
Why not get them on tape and reel? I always found the less I use the trays the better.
Electronics Forum | Fri Jan 16 07:48:29 EST 2004 | Mika
We usually program the components in the component database with pin 1 in the lower left corner. Then in the feeder database we set the component orientaion to 270 deg for Tray feeders(turn the tray in the feeder 180 deg) and "tube" feeders. For tape
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