Electronics Forum | Fri Aug 21 00:27:09 EDT 2009 | boardhouse
Hi To Start Min Tg is just a portion of picking a lead free material, the other is Td. We recommend the following to our Customers. 2-8 layer 150 Tg. Min. / 340 Td. 8-Up. 170-180 Tg.Min. / 340 Td. The above recommendations have been used by man
Electronics Forum | Tue Apr 23 11:34:58 EDT 2013 | philc
Hello all, Just a quick intro as I am new to this group... My name is Phil, and I work for a small electronics company in the Channel Islands. We make boards for many companies. I am the Mirtec MV-3L user, and I am intrigued by this thread. Our MV-
Electronics Forum | Sat Jun 28 07:19:32 EDT 2014 | sramos
Based on your knowledge and experience, could you tell me about speed differences when placing a mix of SMD at mass production? We could consider packages like the small R & C chips, then SOD323, SOT-23, SOT-23-5, SOT23-6, SON6, QFN8, SOIC-8, SOIC-16
Electronics Forum | Wed Apr 01 10:52:59 EDT 2015 | superlen
Oh, I forgot to add a sample of what my export looks like. Note: that I don't have anything in the VERSION block & I wonder if this might be a problem. [VERSION] [PCB] Unit System = MILIMETER Coordinate = LOWER RIGHT Rotation = 0 Placement Ori
Electronics Forum | Tue Feb 21 01:32:49 EST 2017 | soldertraining
Looking for advice on soldering lead free paste to a board with very heavy gold plating, In my opinion, Gold contact surfaces are often used on circuit boards with membrane switches which is a choice of technology for industrial, commercial and consu
Electronics Forum | Thu Jan 04 08:33:08 EST 2007 | davef
You cannot determine foil thickness from its weight per area, because of the significant variation in the density of electrodeposited [ED] copper. But people don't care. They do it regardless. (oz/ft2)||(mils)||(mm) 1/2||0.7||17.8 1||1.4||35.6 2||2
Electronics Forum | Thu Oct 04 00:19:14 EDT 2018 | gaintstar
Flason SMT yamaha nozzles: http://www.flason-smt.com/product/Yamaha-CL12mm-Feeder-KW1-M2200-100.html http://www.flason-smt.com/product/Yamaha-CL12mm-feeder-KW1-M2200-10X.html http://www.flason-smt.com/product/YAMAHA-CL16mm-SMT-Feeder-KW1-M3200-10X.ht
Electronics Forum | Tue Mar 26 23:26:35 EST 2002 | ianchan
Hi Guys, (Note: We are not talking about bill-board RES/CAP, we are talking about Z-axis slant/tilted RES/CAP with respect to the PCB pad Z-axis plane). 1) We ref through the IPC-A-610C specification "bible", and can not find a "chapter/verse" tha
Electronics Forum | Tue Feb 28 20:56:12 EST 2006 | davef
Here you go ... PCB FR-4 Inspection Manual 1 Introduction This defines the minimum acceptability requirements. It is not intended for use as a performance specification for the Company or procurement. It is based on the requirements of Acceptabi
Electronics Forum | Thu Feb 15 23:52:31 EST 2001 | Dreamsniper
Hey guys, I ran a couple of profile in our wave solder machine using wave optimizer and this is what i got: Parallelism = 0.0 Immersion Depth = 2.1mm to 2.4mm with varying immersion time from 1.1 sec to 3.1 secs. Contact Length = between 5.0 to 6.0