Electronics Forum | Tue May 06 22:15:06 EDT 2008 | davef
We agree. We consider mounting holes and press fgit socket pads to be "critical contact areas." Consider taking steps to prevent the production of such solder splats on your gold to help elimate gold rework. We discussed this previously here on SMTn
Electronics Forum | Tue Nov 07 09:26:37 EST 2000 | Peter Barton
Adam, The most common cause for this problem is a variation in the plating thickness of the through holes, particularly if they are Sn/Pb solder levelled PCB's. Most pressfit connectors require a fairly tight control on the diameter of the holes to
Electronics Forum | Mon Jul 30 16:26:45 EDT 2012 | rdouglass
Just curious if anyone else has trouble with the installation and inspection of DIMM Connectors (I know - these are through-hole parts!) We have boards with 240 pin DIMM connectors and occasionally a pin may not be properly aligned prior to press-f
Electronics Forum | Tue Sep 01 15:37:25 EDT 1998 | Ben Salisbury
| How would you mount a surface mount chip onto Perf board? I am doing a project for school and one of the chips is a surface mount, but everything else fits in Perf board. Any suggestions? Thanks Matt- Find some fairly stiff wire, the correct gau
Electronics Forum | Fri Sep 21 13:04:58 EDT 2007 | jmelson
Hello, Is anyone using an SMT pick&place machine to insert single contacts into PC boards? I have some boards that have 32 female contacts for 1mm pins, and 16 contacts for 0.5mm pins. I have been using Mill-Max for these contacts, getting the sma
Electronics Forum | Mon Dec 20 17:34:17 EST 1999 | Dave F
Ron: Chris is correct that there is a bunch of fixture fabricators that make good products that will serve your purpose. Other fixture fabricators can be found in the archives. Problems with these fixtures are: 1 Out-rageously expensive 2 Very lo
Electronics Forum | Tue Dec 17 13:42:04 EST 2002 | robf
There are a few emerging technologies that have been growing in popularity for the past few years. Pin through paste, press fit connectors and selective soldering machines seem to be displacing custom fixtures. Most of the mixed technology boards o
Electronics Forum | Mon Nov 14 09:12:24 EST 2022 | kutayuysal
My company would like to invest and SMT Line boards. Boards are simple for P&P machines, couple of 603 and 402 components which most of machines are capable to place. Challenging part is Pin-in-Paste terminals. Those terminals produce with metal stri
Electronics Forum | Wed Jan 20 20:42:08 EST 1999 | Tony A
| I have received prototype PBGA (256 pins) devices from | Motorola (actual part number = KXPC850ZT50). These parts seemed very warped on the edges. When I put the part on a plain surface, it rocks quite a bit when I press lightly on a corner. I h
Electronics Forum | Fri Jun 04 14:00:32 EDT 1999 | Arthur Burdick
Wendy, we at ASG make electric presses for press fit connectors, and have made fixtures for AMP Zpak connectors. give me a call i believe we can help. 561-848-6746 Arthur | Wendy.. | | I found that little nugget a good one from my connector supp
.gif)
