Electronics Forum | Thu Dec 12 10:43:51 EST 2002 | Randy Villeneuve
Now the big question is how do they get the lead in the pencil? Don't answer that. Anyway now that we all know that there is no lead in the lead pencil (which we already knew) I still feel it is not good practice to use a lead (Graphite-clay) pencil
Electronics Forum | Thu Dec 12 12:17:00 EST 2002 | MA/NY DDave
Hi Fun Posts, Everyone beat me to the graphite solution, SHUCKS!! A dollar late again You know I didn't know that for years, and never gave it any thought. I felt dumb when I realized it since I was in soldering, knew about lead poisoning, and at
Electronics Forum | Mon Dec 07 14:55:41 EST 2015 | clydestrum
So I have an issue coming up that I'm not too sure how to handle. A board was designed with the wrong footprint for a 3-lead transistor in which the single-lead side has a much larger (think thermal pad for qfn) copper land than what is meant for the
Electronics Forum | Tue Dec 08 15:19:42 EST 2015 | proceng1
Apply the correct amount of paste for the pad size should work ok, as long as the part starts out in the paste. If you have a reduced aperture and the leg doesn't quite touch any paste could result in non-wetting or insufficient solder issues. I gu
Electronics Forum | Wed Dec 09 10:45:56 EST 2015 | huske
I've put down a SOT223, close enough to your 3pin transistor, in the same situation you have. The large pin was to be soldered on a large exposed ground plane in the corner of a board, over 2"x2" exposed area. We left the paste file as is, so where
Electronics Forum | Wed Dec 08 19:50:34 EST 2004 | shen_zte
can anyone tell me the benifit of the solder mask onto pad(part) or pad defined by solder mask?and how to excute the SMT process ? thanks.
Electronics Forum | Wed Aug 29 11:14:51 EDT 2012 | davef
The company I was trying to remember is QuikTrace http://www.qwiktrace.com
Electronics Forum | Mon Aug 27 18:16:32 EDT 2012 | bandjwet
Some time ago I ran into 2 companies in the US providing screen printing of PCBs where traces and pads and jumpers could be added to existing high volume unpopulated assemblies. Does anyone know of such suppliers in the US (one of our customers wan
Electronics Forum | Wed Aug 29 08:59:41 EDT 2012 | davef
Hi Bob Two companies that provide this type of service. * Additive Services Inc. Hudson, NH * Conductive Circuits Inc. Garner, IA I know there was a third company mentioned in a thread on SMTnet, but I can't find it, my notes are blanked, and wan
Electronics Forum | Wed Aug 29 09:50:41 EDT 2012 | bandjwet
Hi Bob > > Two companies that provide this type of > service. * Additive Services Inc. Hudson, NH > * Conductive Circuits Inc. Garner, IA > > I know > there was a third company mentioned in a thread > on SMTnet, but I can't find it, my notes a
