Electronics Forum | Mon May 21 10:25:16 EDT 2012 | swag
Ask for board fiducials if you're running arrays. Global fids on the panel do not work well. One handy product we use on flex is "Tacsil". Works well on SMT pallets as well as router operation. It's double sticky stuff that helps hold on to the P
Electronics Forum | Thu Jun 26 09:04:43 EDT 2003 | caldon
We had a "Spring loaded" fixture that pulled the Flex tight and used loads of Board supports. There were pins that went through the Connectors holes and held the flex firm. We only had a few components so it was no problem. Lucky for us because the f
Electronics Forum | Thu Aug 10 13:12:10 EDT 2000 | Bob Willis
You may care to review the following from my Circuits Assembly page on line. "HOW FLAT IS FLAT AND DO WE NEED FLAT CIRCUIT BOARD, YES WE DO ? As production problems go there is one that keeps reoccurring time and time again. The blame is usually di
Electronics Forum | Fri Oct 04 11:34:42 EDT 2002 | Bob Willis
Some additional comments from a paper may be of interest. Baking Printed Circuit Boards - Why and How Baking printed boards prior to conventional and surface mount assembly should not be necessary. Often boards are baked for historical reasons; in
Electronics Forum | Tue Jan 29 20:14:54 EST 2002 | davef
Please help us understand your situation better by describing the following: * Component [ie, PTH/SMT, type of component, lead finish you expected/ received, etc.] * Board type [ie, type of board FR-4/CEM/ceramic, etc.] * Solderability protection on
Electronics Forum | Thu Jun 28 22:42:13 EDT 2001 | davef
I�m with Stefan � no booze, drugs, or chewing tobacco in the shop!!! [I�d like to ban facial make-up, but am still limping from the last time I tried.] Stefan, how are you going to get the P&P manufacturers to agree on a common nozzle design, when
Electronics Forum | Tue Feb 19 09:26:54 EST 2008 | jdengler
The low solids flux that is commonly called no-clean can affect some circuits. We are building a PCB that measures pico amps. The customer required that it be cleaned. We would rather used the low solids and eliminate a step. The customer had
Electronics Forum | Fri Dec 13 18:35:48 EST 2002 | successmani
Thank you friends for your discussion Regarding the reason behind using Solid disk or donut fiducials.Still I am understanding clearly the reson behind using Solid disk or donut fiducial shape. In all the above discussions we had we did not discuss a
Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef
Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept
Electronics Forum | Thu May 29 00:26:58 EDT 2008 | bobwillis
Bob Willis' Top Ten Reference Books Here is a new list of "Bob Willis' Top Ten" reference books that has been updated for 2007 to take into account recent changes in technology. In the publishing industry there are many charts and awards for the bes
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