Electronics Forum | Fri May 07 17:38:00 EDT 2004 | bruce @ knoll
I will try that next. I did speed up the wave pump motor with a larger pully(20% more speed) This was done at the time to try to increase the size of the wave because I had component leeds touching the wave pot as they passed by. Due to the wave high
Electronics Forum | Thu Jun 12 03:34:23 EDT 2003 | sanjeevc
I would like to ask a question about SMT reflow > process. I did 10 pcs samples but all is fail. > The sample is double faces to have components > (up-side has 4 pcs of BGA and down-side has 3 BGA > and 2 QFP). And I saw some of BGA which is > t
Electronics Forum | Wed Jul 09 16:01:10 EDT 2003 | russ
Mike, the one pad that is "small" definitely appears to be over etching (It looks like it was supposed to be much larger). What is the dims of this little bugger as compared to the Gerber? i would also tend to believe that there probably is some mask
Electronics Forum | Tue Jul 15 10:44:49 EDT 2003 | MA/NY DDave
Hi, Although I grit my teeth it does sound like a normal process engineer or engineering situation. Here you are with knowledge and ways to get knowledge of best practices and No One listens. ----- Now I have a cleanliness testing joke (real sto
Electronics Forum | Tue Sep 23 07:44:24 EDT 2003 | Peter VanHeusden
Shortlisted a Samsung machine CP45FV for purchase > for a medium speed application. Any feedback on > your impressions of Samsung machines in general > and also in terms of company, service, support, > software etc. that you would like to share w
Electronics Forum | Fri Aug 08 13:08:03 EDT 2003 | Scott Wischoffer
In the past three years, a significant number of machines have been sold through private sale, brokers and on the used market. Many of the companies who have purchased this equipment are using the Fuji America 24 hour free services on a regular basis
Electronics Forum | Fri Sep 26 14:03:57 EDT 2003 | lysik
Good Idea. I think there are many Bad apple used equipment dealers as well. We should track them as well. Every bad apple needs to be dealt with. OEM must make money to survive and support systems. But I must tell you for example I have found many th
Electronics Forum | Wed Oct 15 09:53:01 EDT 2003 | markhoch
These boards also were above liquidus for 75 seconds, and the customer puts the boards thru extensive thermal shock and stress testing. An Alpha Applications engineer told me that because the boards were above 183 degrees for 65-75 seconds that the i
Electronics Forum | Thu Oct 30 00:12:13 EST 2003 | Grant Petty
Hi, Another option we have used here in house is to remove the unwanted BGA balls with solder wick, and then to manually place them on the PCB foot print. This eliminates the pick and place machine's optical centering freaking out because the balls
Electronics Forum | Wed Nov 05 09:00:56 EST 2003 | russ
Why order extras, because they break, get bent etc... you also want to look into replenishment of the machine during a production run, you want to have backups ready when a part runs out. Also having extras will allow offline set-up while a job is ru
