Electronics Forum | Sat Mar 26 08:30:01 EST 2005 | davef
Consider this: * SolderQuick Winslow Automation-type [ http://www.winslowautomation.com ] preform * When LGA first came on the scene, we didn't have a clue. After trying sockets, we printed paste on the pads bug-up, reflowed, and then the placed the
Electronics Forum | Tue Mar 22 08:13:39 EST 2005 | Rob
Hi Colin, If it's easy for you to swap to Convex try the Rohm MNR14 series, Bourns CAY series or Eurohm NC Series. Else try a 10% apperture reduction - however we usually had a 6 thou stencil when we did this. Cheers, Rob.
Electronics Forum | Wed Mar 23 20:44:25 EST 2005 | pmd
Sounds like EA has way too much free time on his hands. How are you taking a reading. What instruments are you useing to get a reading. What are you looking for? Voids? Adhearsion? Contamination? Why would you need to know what it takes to break a co
Electronics Forum | Mon Mar 28 14:57:46 EST 2005 | chon
So far I've been working with a xtal. I've been placing this on a board and the part was falling from the board. We found residues on leads and notified vendor as contamination, after that 100% of our production has been verified with a perpendicular
Electronics Forum | Tue Mar 29 09:02:13 EST 2005 | Indy
chon, we do a similar kind of perpendicular test, but have not found any kind of specifications to determine if the force is good eoungh. Since you mentioned that 6 pound-inch was enough for your application, could you provide some insight on how
Electronics Forum | Tue Mar 29 09:54:20 EST 2005 | chon
Indy, Please refer to IPC-TM-650 TEST METHOD MANUAL Number 2.4.21.1, this is the closest written procedure I've found and used for this. I hope helps or if someone has any other input please advise. On more thing I have this file just let me know if
Electronics Forum | Thu Mar 24 02:21:14 EST 2005 | Nifhail
I've heard about the dessicator i.e.useless in sealed bags, ineffectual, but have not heard about the Dryer Indicator will contaminate the immersion Silver/Tin surface. Can someone help? I was told that the dryer indicator (HIC) that contains sulphur
Electronics Forum | Fri Apr 01 08:33:28 EST 2005 | tds
Please call me John & Michael. I am the Sales Representative in Ohio and I can help you both with each question you have regarding Technical Devices. My phone number is 330-724-3333 Thank you. Scott Wilson Tritec Sales, Inc.
Electronics Forum | Thu Mar 31 19:52:50 EST 2005 | davef
We agree with Russ that you're talking palladium instead of platinum. Your wetting problem likely is not the Pd-Ag surface layers, but the underlying metal or nickel to which you need to wet. Either a base metal is: * Contaminated and poorly wettabl
Electronics Forum | Mon Apr 11 02:58:49 EDT 2005 | Base
You might want to take a look at some of the Assembl�on/Yamaha stuff. I believe they have a machine that has a couple of dispense heads and a couple of placement heads, so you can get your solder-paste and component-placement all done in one machine.
