Electronics Forum | Tue Mar 05 22:35:49 EST 2002 | Nell
Hi Pete and Dave, I already check with Practical component, Tessera and TopLine Dummy component they said they only have up to 0.5mm pitch CSP. Anyway, thanks for your input... Do both of you know in the market right now is there any 0.4mm pitch C
Electronics Forum | Mon Mar 04 22:50:03 EST 2002 | Nell
Hi, Could anyone tell me where can I get the 0.4mm pitch CSP Dummy Component and the Test PCB? Any comments will be appreaciated. Thanks and Regards. Nell
Electronics Forum | Wed Sep 13 20:04:37 EDT 2006 | mika
Hi, We have a customer that want us to produce a single sided 0.4 x 100 x 50 mm size RoHS pcba approx 1000 of them. The board only contains three 2.54mm pitch Non P.I.P, SMT-connectors. We have never produced such a thin pcb:s before. We are thinkin
Electronics Forum | Tue Apr 09 16:19:37 EDT 2002 | Peter L.
Has anyone built using the ALIVH PCB (0402, 0.8mm pitch uBGA) on the SMT line? I would like to know any process issues (paste printing, p&p, reflow) related to processing this pcb. Specifically, what type of solder paste was used (no clean) and wha
Electronics Forum | Thu Oct 11 22:25:50 EDT 2001 | davef
Bruce I�m with yall. Designers and fabricators say �pins�. You say: * BGA pins are 1mm [0.039�] pitch. * BGA pads are 0.4mm [0.0157�] diameter. * BGA pins are 0.6 mm [0.024�] side-to-side. * Board thickness is ~0.4 mm [0.015�] First, as you can
Electronics Forum | Thu Dec 19 16:15:26 EST 2002 | Dreamsniper
Hi Grant Petty, I read about your problem, You might have problem with the design. First on the pad. What is the diameter of the BGA pad in your PCB. We have the same size of PCB and we use 0.584mm Pad dia. and a 10% reduction on our aperture. We us
Electronics Forum | Sat Dec 21 02:06:22 EST 2002 | P.SANKARA NARAYANAN
The easiest simplest solution i can think of is the Print plate from OKI. Why dont you try the same. Visit http://www.metcal.com. Instead of printing on PCB you can print on the BGA.
Electronics Forum | Mon Dec 16 21:34:05 EST 2002 | grantp
Hi, Yes, the stencil does touch the PCB. Is there another method? Sorry to sound a bit dumb on that, however I don't have a lot of experience with automated stencil printing, and manual has been working well up to now with this BGA. Regards, Gra
Electronics Forum | Tue Feb 22 10:44:12 EST 2005 | Dougs
when you talk about stencil design, what would you recommend for aperture size on fine pitch if the customer insists on hasl finish on fine pitch devices? i usually use a 10% reduction on everything we have been using ( 16mil pitch and upwards and 0
Electronics Forum | Mon Dec 16 10:23:42 EST 2002 | Grant Petty
Hi, I have checked the archives, but need some advise. We have a 256 pin 1 mm pitch BGA part of our boards, and we have having problems with paste release our of the holes for the BGA. We just cannot seem to get it right, and we have to keep the st
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