Electronics Forum | Fri Oct 02 07:26:50 EDT 1998 | smd
I didn't use my real name because I don't want to get bombed with phone calls and emails. We are an OEM looking to put in a SMT line soon. Is this GSM a decent machine? How much does it cost? | | Also and info on decent screen printers and reflo
Electronics Forum | Fri Jul 24 13:41:05 EDT 1998 | Bob Willis
Sorry guys have a look at this list of component weights and then work out the surface area of the lead/pad and then come back on the PLCC issue. Chip 0805���� 0.007g������ 2 Chip 1206���� 0.009g���� 2 Chip 1210���� 0.012g���� 2 SOT23���������0.008g�
Electronics Forum | Wed Mar 18 09:03:57 EST 1998 | Earl Moon
| Problem occurs because the glass transition temp for FR4 is lower than reflow temperature. Our company wrote an article which was printed in SMT magazine some years ago | that deals with this exact subject. Best way to deal with this is to use a ce
Electronics Forum | Wed Nov 21 19:45:36 EST 2001 | Yngwie
Hi Guys, I need help. I�ve a trouble with non-wetting problem on the lead of 208 pin, 20 mils pitch QFP. We are on intrusive reflow. I never faced this problem before on this product after running them for about 2 years now. This occurred on one pa
Electronics Forum | Mon Mar 25 15:51:04 EST 2002 | davef
ASQC re-numbered the once free (taxpayer sponsored development) MIL-STD-105 as ASQ-Z1.4, slapped their own cover on it, and now charge $40 or $50 for the same document! The standards are identical, so see if you can get one of the old �MIL-STD's� and
Electronics Forum | Tue Apr 13 17:48:54 EDT 2004 | davef
Q1: Can anyone explain to me about the effect of their mixture. A1: What is their �mixture�? Q2: What enhancement does my BGA will have when using a WS paste flux with regards to corrosion, 25 years life cycle of the solder joint. A2: Tough to say
Electronics Forum | Wed Sep 17 11:13:06 EDT 2008 | daxman
You had mentioned that your volumes will be low? How about the mix? will you be changing over to different products a lot? How many different products will you be running? Will feeder setups be done by the operators or will you have a another departm
Electronics Forum | Wed Jun 24 08:19:59 EDT 2009 | fujiphil
Hi, Procedure how to replace the x-ballscrew of CP642. 1. Before you remove the x-motor, remember the pulse of x-axis motor just it turn ON the zero set sensor. Pulse usually at 1000pls. +/-50pls. 2. Turn Off the machine. 3. Compress the two ballsc
Electronics Forum | Wed Nov 04 11:35:01 EST 2009 | dilogic
1. can you load cut tape onto the feeders, or only reels? You can, but you have to use cover tape extender (pretty cheap, though) >2. how about parts on trays (like Atmel AVRs in the QFP package)? You need tray feeder. But you can "make" your own
Electronics Forum | Mon May 02 12:35:33 EDT 2016 | adamjs
Or try : http://www.sipad.com/ I think sipad is incredibly cool and would be the perfect solution, but is way too expensive. We're paying $0.80/each for four-layer ENIG boards, 50cm^2 with 0.125mm trace/space and 0.8mm-pitch LGA landings in lots of
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