Electronics Forum | Thu Jan 18 15:50:41 EST 2007 | samir
Hi Patrick, I agree, there've been many anomolies this Winter. I've spent the last 6 months at my company's Chicago branch, and temperatures throughout December were very comparable to the desert heat of Riyadh! I hate Al Gore, the guy's a total to
Electronics Forum | Thu Dec 07 19:54:55 EST 2006 | davef
We agree with "guest" above. This a "chip bonder" type material used to improve the reliability of array type devices. "A relative comparison of the N50 values is given below: No underfill = 1.0X (baseline) Corner bond = 1.3X Non reworkable underfi
Electronics Forum | Fri Dec 08 02:40:45 EST 2006 | Mike Konrad
Hi 'K', We manufacture both batch and inline defluxing equipment so we have no axe to grind with either technology. There are pros and cons associated with both technologies under specific conditions. Batch machines are typically good cleaners but
Electronics Forum | Tue Dec 19 20:54:52 EST 2006 | Guest
Your experience is quite different than mine. At continues dispensing,I noticed that glue dispense volume increase as the material in the syringe decrease. My machine is using air time pressure pump. This is normal for this kind of pump since ai
Electronics Forum | Wed Jan 03 20:30:11 EST 2007 | mrduckmann2000
We too are having issues with our soldering iron tips. We purchased the new Weller WD series irons which we were told would work just fine with lead-free solder. The Weller unit has changed 3 times in the last year(latest unit is the WD2M series).
Electronics Forum | Thu Jan 04 15:39:07 EST 2007 | dyoungquist
While the 85% yield on a per board basis seems low, we are actually running over 99% yield on a per solder joint basis as there are about 17,700 joints per panel. On average, 9 out of 63 boards in the panel need rework. Rework issues include missin
Electronics Forum | Wed Jan 10 20:06:43 EST 2007 | SSS
I've been assembling thousands of boards for dozens of customers over the past 5 years with 0402 chip components. 85% can happen very easily even with newer equipment. Defect challanges with 0402 packages is almost always tombstoning. Capacitors abou
Electronics Forum | Tue Jan 09 13:54:10 EST 2007 | jdengler
Hi All, I'm having a problem with a Fuji GP-341. It has squeegee pressure control using a TEAC TD-320A comparator. I cannot get it to measure printing pressure. On the TD-320A it normally reads "2512" then flips to "oFl4" then back to "2512". If
Electronics Forum | Thu Jan 11 09:19:56 EST 2007 | SMTRework
I know this is not the correct forum to post chip "reworking" questions but you guys have been very helpful in the past. My question is this, when we rework BGA components most of the time the solder reflows at a normal temp and all is well. On occ
Electronics Forum | Wed Jan 17 21:56:57 EST 2007 | fastek
Here's why it all goes to China: Americans all want $100 per hour to change a light bulb yet refuse to pay any more than $10 for a cell phone and $500 for a computer. They only want to work 5 days per week, 7 hours a day and get one month off every
