Electronics Forum | Tue May 14 20:45:45 EDT 2002 | davef
Ashok Dhawan, an old friend of SMTnet, says: Formula for counting components on SMT tape & reels [spiral belt]: Length = Number of turns * 1/2 * 22/7 * ( dia outer + dia inner), where ... Number of turns = ( dia outer - dia inner) / thickness of
Electronics Forum | Tue Feb 19 23:00:29 EST 2008 | amarpreet41
Connector pin - 10.83 mils Hole dia - 27 - 33 mils. We are trying to find the optimam level for hole dia.
Electronics Forum | Wed Jan 31 01:41:00 EST 2001 | pjc
Steve, I have no influence over conn design. We paste print-reflow solder two types of connectors. One is a 50 pin IDC w/ 0.5mm lead dia @ 2.54mm lead pitch and a chamfered pointed lead tip. The other is 32 pin DIP w/ 0.36mm lead dia @ 2.54mm pitch
Electronics Forum | Fri Nov 07 01:01:55 EST 2008 | mskler
What should be stencil size to reball the BGA of 0.6MM ball dia.
Electronics Forum | Mon Jan 11 20:33:13 EST 1999 | Chris G.
I'm looking for a CABGA test socket for a 2 CABGAs. One 81 ball CABGA is 9mm x 9mm with .46 mm dia balls on .8mm pitch. The other is a 64 ball CABGA 8mm x 8mm with .46 mm dia balls on .8mm pitch. I need to pretest CABGAs before placement due to hi
Electronics Forum | Sat Dec 01 13:44:07 EST 2018 | horchak
Is this across different assemblies or components? HAS the machine been calibrated lately? Are you using an adjustable fixture or dedicated tooling plate? Is it a rotating table and are you using it? Was program generated with CAD data or self taught
Electronics Forum | Tue Oct 05 10:48:46 EDT 1999 | Frank Fossett
I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer (he is also new ) wants to use an .035 pad with a .021 dia. hole, there are no via's u
Electronics Forum | Tue Oct 05 10:13:48 EDT 1999 | Frank Fossett
I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer wants to use an .035 pad with a .012 dia. hole, there are no via's under the zero clea
Electronics Forum | Wed Aug 24 21:57:45 EDT 2005 | adeline_ko
The blistering is around the plugging via. I can forward you the pic. For the plugging process, I'm not too sure how they plug. What is the correct practise for the plugging via. Now, what they did is. They will do a tenting process for both side.
Electronics Forum | Tue Dec 14 01:05:09 EST 1999 | cklau
Hi All I have a 0.7 mm diameter hole for vias, what�s the minimum annular ring for this hole diameter? Ans: Fur inner layers Min = .006" hole-pad annular ring ; inner pad dia - hole dia/2 For outer layers Min = .005" hole-pad annular ring ; outer p
