Electronics Forum | Fri Oct 22 11:53:53 EDT 2004 | C Lampron
Hi Christina, What would you be basing the yields off of? Is it solder defect, component placement, etc....? I have worked for a flex house for quite a few years. You are right. The Polyimide is very dimentionally unstable. (even more so on humid da
Electronics Forum | Thu Aug 13 07:53:40 EDT 1998 | Earl Moon
| | Couple of questions. | | 1) Are we talking alumina substrates as the ceramic material? | | 2) Are we co-firing gold as the conductors on the substrate surface? | | 3) In other words, is this a hybrid thick film circuit? | | 4) If so, how large or
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 | Fri Apr 06 09:29:20 EDT 2018 | jacobidiego
Hi Experts, I am interested in having a tool or process to measure coplanarity between the PCB pushed-up in the printing process and the Stencil. Therefore having a way to calibrate them.
Electronics Forum | Mon Dec 20 13:39:08 EST 1999 | Wolfgang Busko
Hi Clarissa, seems to be a real start up situation you are in. For the printing there is IMO no need to buy any sophisticated automatic-vision-alignment-self-cleaning-inline-and-more-machine. Features you need: - adjustable in X-,Y-,Z-axis (individu
Electronics Forum | Wed Oct 10 13:51:08 EDT 2007 | petep
Coilcraft has posted the following and I am wondering how you folks are handling the use of coils in a Water Soluble world. PCB Washing and Coilcraft Parts Coilcraft tests for resistance to solvents per the following specification: Resistance to s
Electronics Forum | Mon Nov 12 16:14:47 EST 2001 | davef
Yes!!! How can we assemble boards with 20 pitch when we allow 0.008� error to the master art? Excellent question!!! IPC-D-300G has nothing to do with assembler requirements. It is written by and for fabricators, so that they can be comfortable.
Electronics Forum | Fri Jun 29 14:15:00 EDT 2001 | stefo
This is a question about complying with J-STD-001 solderability testing. Do any of you have your vendors certify that the components and PCB's that you buy from them comply with the solderabilty requirements spelled out in the -002 and -003, in lieu
Electronics Forum | Sun Jun 07 02:06:26 EDT 1998 | Earl Moon
| Earl, | As always, I am interested in what you have to say, but I am still a little vague on your application of ANSI Y14.5 as it relates to the manufacturability of an assembled printed circuit board. Are you implying that component placement coor
Electronics Forum | Thu Aug 13 03:10:22 EDT 1998 | Terry Keen
| Couple of questions. | 1) Are we talking alumina substrates as the ceramic material? | 2) Are we co-firing gold as the conductors on the substrate surface? | 3) In other words, is this a hybrid thick film circuit? | 4) If so, how large or small? S
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