Electronics Forum | Mon Mar 12 07:19:33 EST 2001 | Daniel Carlsson
I have a problem with a mixed technology board. The board have two PGAs which are soldered in the wave soldering machine together with two connectors and a lot of glued surface mounted small components on the secondary side. The problem is that some
Electronics Forum | Wed Mar 14 22:41:03 EST 2001 | CAL
There are also Process monitoring tools that mount directly to your blades and monitor the paste. Impedance Spectroscopy is the process monitoring theory behind the tool. It works by having good sample data logged that the monitoring tool can compare
Electronics Forum | Fri Mar 30 18:24:12 EST 2001 | davef
There is no test. Beyond the issues that you mentioned that affect shear, an article published in a recent [1/01] "Journal Of Surface Mount Technology" documents that shear is also dependent on the rate of shear. You may be able to contact the auth
Electronics Forum | Tue Apr 03 12:00:55 EDT 2001 | Steve
I am looking for standards that describe acceptance criteria for PCB's. Anyone.....anyone.....Buhler. My company is an OEM manufacturer and I want to know what to look for when we receive PCB's from our PCB fab vendor. Specifically, solderability an
Electronics Forum | Thu May 03 18:13:40 EDT 2001 | johnthor
what are these kids doing in the dark with band-aids anyway? I'll bet you could get the same effect with Kapton tape (maybe yellow light?) Seriously, I use the IIT proframe Dave mentions down to 25 mil but have gone back to a permanently mounted foil
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 Jun 20 12:07:13 EDT 2001 | Steve
I would suggest getting a copy of IPC-SM-782A, Surface Mount Design and Land Pattern Standard, and IPC-7525 Stencil Design Guidelines. My experience is that reflow does not cause tombstoning very often. Pad and land design, paste volume, and placemen
Electronics Forum | Thu Jul 12 10:18:11 EDT 2001 | Hussman
Ummm...why not use Loctite 7360 Surface Mount Adhesive Cleaner? It's designed to remove adhesive and works great. Low oder and can be bought in 500ml cans for hand cleaning. Part# 25658. Use it why any dry wipe. Do not use alcohol to clean this
Electronics Forum | Tue Jul 17 18:19:09 EDT 2001 | dave
CONNECTOR, 4 X 40, MALE, SM, 0.472 STANDOFF301-00030TOLC�Mount(1,27mm),.050",(0,64mm) .025",micro pitch Looking for someone who has had experience placing this Samtec style of connector .We are having issue with open solder and insufficent. We are no
Electronics Forum | Mon Jul 30 09:31:46 EDT 2001 | kennyhktan
Dear All, I'm now facing with 0805's component missing problem at the production after mounting. In able to containing the defect I'm been trying to increase the soldering strength by changing the stencil thickness from 6mil to 8 mil on a step do
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
Training Provider / Events Organizer / Association / Non-Profit
6600 City W Pkwy
Eden Prairie, MN USA
Phone: 952-920-7682
