Electronics Forum | Mon Jul 16 16:39:17 EDT 2007 | davef
We doubt that entrapped process chemicals cause under-etch. Over-etch maybe, but not under-etch Under-etch is an indicator of improper process control/improper chemistry during etching. Under-etch can result in bridging between traces, resulting in
Electronics Forum | Mon Nov 05 13:46:14 EST 2007 | ck_the_flip
That's where this website falls short. Sorry to b*tch, but there's lots of people who post here whose primary language is NOT english, and you know what they say... "a picture is worth a thousand words." Original Poster guy...try "Image Shack" to s
Electronics Forum | Mon Nov 19 09:34:50 EST 2007 | bbarton
Real Chunks...Yes, that's the most glaringly obvious defect in the short term (you'll probably find it on your production floor if it's really bad) but you may find that everything looks good short term only to have a high level of customer returns..
Electronics Forum | Tue Jan 29 11:37:42 EST 2008 | operator
We have a customer who is using a standard USB Type A Connector on their assemblies. They don't want to add a housing to the assembly, but want to shield the metal USB connector housing from potential shorting with surrounding electronics within thei
Electronics Forum | Tue Jan 29 11:39:42 EST 2008 | operator
We have a customer who is using a standard USB Type A Connector on their assemblies. They don't want to add a housing to the assembly, but want to shield the metal USB connector housing from potential shorting with surrounding electronics within thei
Electronics Forum | Mon Feb 25 08:14:04 EST 2008 | adetuc
Hi ... We use DRS24C Air-Vac machines for placing BGA devices, and have been having problems with shorts on corners of one device in particular, its a PBGA and its size is 4.5cm square and 15grams weight. When the component is picked up and the com
Electronics Forum | Wed Jan 21 10:27:27 EST 2009 | gidster
Ok. As you know the machines changed a bit after > 95 due to CE regulations. > > There are no drawing > on board/box level in Panasert > machines. > > However normaly i`ts the 100 volts > thats "shorting out" the machine and shuts it > down. C
Electronics Forum | Thu Jul 08 04:26:27 EDT 2010 | bks
Hello, this is my first post in this forum, but sometimes I visit it to get some news. Now we have an issue and I need your advice. Few months ago we were awarded with a project that use PTH components. We solder these components on Wave soldering
Electronics Forum | Thu Jul 08 09:29:10 EDT 2010 | mb_mfg
There are several things that can be done. Shortening the lead length should eliminate bridging between lead. We had done a project several years ago where the customer had shortened the leads to almost flush to the board, preventing any chance of
Electronics Forum | Mon Oct 28 11:42:40 EDT 2013 | davef
Two most important parameters are: * Solder temperature is the temperature of the solder * Dwell time is the time that the board remains in contact with the molten solder Several things that you should consider are: * First, here's how to design an
