Electronics Forum | Fri Oct 03 16:22:38 EDT 2008 | alien
For plain old QFPs in small quantities, a temperature controlled heat gun + a decent soldering station can do the trick. In my case, Steinel HL 2010 E heat gun (handheld, but with a digital readout) to desolder. Clean up pads with solder wick. Solder
Electronics Forum | Wed Aug 26 05:57:45 EDT 2009 | aw126901
Hi We have recently noticed that our lead free solder wire is being supplied with expiry dates (typically 2-3 years after manufacture). I have seen "date of manufacture" information on wire before but I was not aware that a cored solder wire could e
Electronics Forum | Tue May 24 21:48:23 EDT 2005 | steve
You can continue repair and rework with tin/lead solder until 7/06. However!!! Any product still on the shelves overseas after 7/06 will be returned to the USA. Thought? Maybe start repairing with SAC305 now? Also SAC is Tin, Silver and Copper. No Ni
Electronics Forum | Mon Feb 18 03:40:04 EST 2008 | akareti
Hi everybody, I found a defect varistor 0603 Tombstone and poor welting when we use component that terminal is Silver palladium (Ag/ Pd) with Leaded solder paste (63/37). Then we change alternative component that terminal is Ni/ Sn the result not fou
Electronics Forum | Tue Jun 16 07:52:50 EDT 1998 | Jim Zanolli
| can any body help on assembling straddle mount connectors on to a board? for information on the connector - it is a berg micropak connector Teka Interconnection Systems (http://www.tekais.com)manufactures straddle mount connectors with solder and
Electronics Forum | Mon Jul 26 20:55:29 EDT 2004 | davef
How do you know that those specks of solder have not been reflowed? Could it be that what you are seeing is reflowed solder ejacta from a poorly controled reflow process? While not as prevalent problem with NC as with water soluable, moisture in th
Electronics Forum | Fri Mar 06 10:11:02 EST 2015 | eezday
Hello Adriano, I see that you have ran several test with differnt valumes of solder paste which is a reasonable path. Have you run any solderability tests? Head in pillow is usually considered a solderability problem. Also, what type of plating a
Electronics Forum | Sat Mar 29 01:59:09 EST 2003 | iman
Yep, only the MLF have this blowhole/pinhole issue. Other components like SOT(transistor), CAP, RES are hey-o-kie. Btw, MLF = micro lead frame (IC/LGA) package. looks like a BGA without the solder balls. has direct attachment to the PCB ENIG pads wi
Electronics Forum | Thu Jun 09 05:04:05 EDT 2005 | Joseph
Dear Patrick, Unfortunately we do not know what exactly the failure as our customer refuse to reveal to us. From visual inspection the solder joints are smooth and shiny as per IPC-A-610 requirements. The component supplier (IR) commended that they
Electronics Forum | Thu Sep 01 01:07:08 EDT 2005 | cmiller
We have a dual pot machine. The fluxer is not the slowest part of the process on most boards. However, we looked at running boards that had many hundreds of TH leads that we currently run through the wave in order to try not to buy a wave for lead-fr
