Electronics Forum | Thu Sep 10 15:29:15 EDT 1998 | matthew park
Tim, What is it? Which ones are you talking about: 0.080" vs 0.008", 0.100" vs 0.010", or 0.050" vs 0.005" pitch devices . If you are saying 0.080",0.100" and 0.050", any pick and place machine can handle that. Well if not, one machine that is ca
Electronics Forum | Wed Sep 10 09:56:18 EDT 2003 | vickt
5 years ago (mostly likely 7-8 yrs). Most of these failures can be attributed to simple overtemp conditions or mechanical stress. Customers who do not keep the cooling fan filters clean on their machines tend to see a higher failure rate due to highe
Electronics Forum | Thu Sep 16 06:13:17 EDT 1999 | Wendy Casker
| For the record, the problem was related to a bad floppy disk resulting a corrupted dll file. Microsoft Windows 98 did a poor job of recovering from a bad dll. The dll was removed, QSoft re-installed, and all is running well. | | Times change Ear
Electronics Forum | Sat Jan 23 16:31:09 EST 1999 | Steve Gregory
| Hi Everyone, | We plan to build, for reliability/experimental/research purpose some CSPs (namely Tessera microBGA 46-I/O 0/75mm pitch and TI 64 I/O 0/8 mm pitch). the various factors that we plan to evaluate are the reliability and assembly concern
Electronics Forum | Mon Mar 16 18:15:32 EST 1998 | ETS, LLC
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 center
Electronics Forum | Fri Jul 20 10:44:56 EDT 2007 | gmoritz
If you bought it from an equipment dealer ... OK, the dealer has come through and is (allegedly) sending a full compliment of documentation to arrive by Monday. > ... they need weekly maintenance ... > ... you WILL need parts for it. ... > Do you
Electronics Forum | Mon Jul 23 10:09:32 EDT 2007 | slthomas
(1) part standoff - how far the base of the part rests from the top of the board. Seating plane will rest flush with the board, whether it's the bottom of the part or a lead form. (2) lead length - is the final length of the lead adjustable, so t
Electronics Forum | Thu Aug 19 11:58:12 EDT 2010 | davef
From "Universal Instruments Packaging Specification" ... [snip] Packing Of Populated Boards · These parts require individual separation and protection to prevent electro static discharge and structural damage. They shall be packed in sealed, anti-st
Electronics Forum | Tue May 17 19:55:14 EDT 2016 | ttheis
We have been pretty happy with second hand Universal Instruments GSM machines from the mid 90's. They are pretty affordable on the used market for a small company like ours and there seems to be a good supply of new and used parts. Support is good fr
Electronics Forum | Thu Aug 10 16:34:18 EDT 2017 | kalsi311
Thanks for quick reply We were using 2 MR40LS machines and 1 MR20LP machine. MR40LS machine have tow beams and 12 heads (6 heads each) and MR20LP have 4 heads. In my new company we are using 2 lighting head who have 30 heads and 1 7 heads machine. B
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