Electronics Forum | Tue May 06 22:31:52 EDT 2003 | yukim
Yes, we did try: built a lot of 200 PCBs with Sn62Ag2 solder paste (we have been using Sn63) and it helped, but not eliminated the problem.
Electronics Forum | Thu May 01 13:21:53 EDT 2003 | k_h
I use my pick-n-place data to identify feeder problems and vision algorithms that need tweaking. Over a period of time you may be able to get a feel for shrinkage. I have been using 2% for tape and reel parts and 1% for tray and belt (tube) parts.
Electronics Forum | Wed May 21 14:16:40 EDT 2003 | caldon
Dyann- There are two companies I have used in the past. 1) ACI in Philadelphia - Guy Ramsey 610-362-1200; Gramsey@aciusa.org 2) Soldering Technology - Mel Parrish 256.461.9191; http://www.solderingtech.com Cal Communications Test Design, Inc www.CTD
Electronics Forum | Fri May 16 12:14:04 EDT 2003 | pjc
The UIC HSP (Sanyo), like Panasonic MV MS and Fuji CP, are random access turret type chip-shooters. Having a split carriage, typically 2x 60, 2x 70 or 2x 80 input carriage tables, allows for faster changeovers provided you have enough positions on ea
Electronics Forum | Mon May 19 19:32:50 EDT 2003 | Dave
Hello. We have a low profile LCC on a board. The clearance is ~ 2mils after reflow. Cleaning away residual flux with an ultrasonic 50C water cleaner caused some LCC and 0201 components to loosen. Should we stay away from the ultrasonic cleaner?
Electronics Forum | Tue May 27 07:59:12 EDT 2003 | pjc
Take a look at this stuff: http://cms.3m.com/cms/US/en/2-178/iileuFX/view.jhtml Its used on boards in beverage vending machines, etc.... not Mil approved but is excellent for commerical apps.
Electronics Forum | Mon Jun 02 14:53:49 EDT 2003 | scottefiske
Are you buying new or refurbished?? I bought (2) 400-D's from them a little over a year and a half ago.
Electronics Forum | Thu Jun 05 17:30:10 EDT 2003 | abarbe
Hi, Take a look a this site.Lot of information. http://www.pcbstandards.com/SiteIndex2.php
Electronics Forum | Wed Jun 11 09:16:05 EDT 2003 | davef
Il ne pas de quois. Two most important parameters are: * Solder temperature * Dwell time Immersion depth [1/3 to 2/3 of board thickness] has the least impact of any variable in wave soldering.
Electronics Forum | Thu May 06 20:14:58 EDT 2004 | gregoryyork
sorry one other thing are you sure your getting 2 -3 seconds dwell after you reset the wave? Or is the dwell much longer?
