Electronics Forum | Tue May 08 21:13:04 EDT 2001 | Paul
My company is a low-volume high mix contact electronic manufacturer. We are currently looking at purchasing a pick and place machine that is capable of mounting such new components as microBGA's and other CSP's at such ball pitches as 0.5mm for examp
Electronics Forum | Wed Feb 09 11:50:55 EST 2005 | mrduckmann2000
Pete, I started with the App engineers, they had me try a 21g needle then a 23g needle then a 25g needle. The tech's are the ones suggesting that I slow the pump down to half speed and try a 27g needle. The needles are $150 a piece.....I now have
Electronics Forum | Wed Feb 09 12:28:58 EST 2005 | Valerie
We have been pretty successful with screen printing glue, however the smallest component we now glue is a 0805. We had many problems using our Gemini II to put down glue dots for a 0603, so we altered the pads to do double-side reflow. As our own int
Electronics Forum | Wed Feb 09 12:31:54 EST 2005 | russ
We are not doing this right at the moment but I have done it with great success. Of cource it depends on your pad layout we have a 20 mil gap in between pads, we printed at 10 mil wide with a 5mil stencil. I will try to find the glue we used, I kno
Electronics Forum | Wed Feb 09 21:19:03 EST 2005 | Mrduckmann2000
Russ, We can not use a wave pallet, already went that route. We have parts next to the thru-hole pins and between thru-hole pins. I am going to try an experiment in the next day or so with solder mask. I plan to solder SMT parts on the back of se
Electronics Forum | Wed Feb 16 21:26:11 EST 2005 | Mrduckmann2000
Well, I have not had a chance to run my experiment yet. I hope to have the wave solder machine to myself on Friday morning. I will let you know. I am hopefull from what you and the others have said that it will work and we can reduce our touch lab
Electronics Forum | Wed Sep 23 08:19:52 EDT 2009 | rgduval
Check to see if there's a loose cable, or something, that's randomly setting off the light curtain. We occasionally have that problem with some of our flex or 12/16 mags in our TP9, where the tape take up clip is loose (nothing in that feeder) and i
Electronics Forum | Fri Jan 16 16:57:14 EST 2015 | dilogic
I doubt you will be able to get satisfactory results with 0201. 0402 is another story. When doing 0402 projects, we use only electric (MP) feeders and always at the same feeder slots (feeder teach done for each of them). MPF08 nozzle works fine. Also
Electronics Forum | Wed Dec 22 08:49:55 EST 2004 | markhoch
I'm looking for some data to support my argument that HASL boards are not the most ideal boards for manufacturing involving BGA's and 0402's. I'm sure one of you SMT Gurus out there can point me in the right direction! Thank you in advance!
Electronics Forum | Wed Dec 22 09:56:12 EST 2004 | davef
For BGA: http://www.smta.org/knowledge/proceedings_abstract.cfm?PROCEEDING_ID=731 For 0402: http://www.xs4all.nl/~tersted/PDF_files/Plexus/tombstoning.pdf
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