Electronics Forum: differ (Page 110 of 579)

Soldering Specification Needed

Electronics Forum | Fri Sep 23 15:28:51 EDT 2011 | minda

What are the differences between the classes? Essentially we solder the components onto the board, test them, and ship them out so this is all a learning experience for me as the new QE on board.

Reflow Bottom BGA without pallet

Electronics Forum | Thu Oct 13 14:24:10 EDT 2011 | dphilbrick

You can use a paste that flows at 2 different temps. (first side flows hotter than second side) Glue, as stated in other answer and capton tape covering the BGA will defect enough heat usually as well.

Cyberoptics Flex AOI SPC

Electronics Forum | Thu Oct 27 16:47:55 EDT 2011 | sjs2303

Has anyone any experience with using the latest version of this software? If so I am interested in hearing how you use it to reflect the different metrics for quality reports.

Loud humming noice from X-Wagon motor

Electronics Forum | Mon Oct 31 02:36:01 EDT 2011 | kenmar

Thanks , If you reduce the placement precision the X-Axis does not make any noise but than I had placement /pickup problems when it comes to Ic's.Slowing down did not make any difference.

Quad 2C

Electronics Forum | Mon Nov 07 14:15:02 EST 2011 | bobpan

There are different sets of mod codes depending on the firmware version on the machine. One of the function codes can tell you what firmware you have and if its quadalign or cyberoptics. Re-post and maybe i will have the version you need.

screen thickness

Electronics Forum | Mon Jan 23 21:25:39 EST 2012 | gaz

Is there a different thickness of screens we should be using for smaller components (sod523 / sot23 / 0603) or new pastes? Thanks.

Standard for automated placement & assembly, density etc.

Electronics Forum | Sat Feb 18 15:19:25 EST 2012 | joeln

Thanks for the information. So Density level A corresponds to "88", B to "55" and C to "44" ? Im wondering why the difference in naming ? Thanks

Topaz X Head Optimization

Electronics Forum | Sun Mar 25 15:17:38 EDT 2012 | duchoang

I used Topaz x and X2 long time ago. I might be wrong, but let's check the thickness of components and the camera light recognizing setup for each part. (?). They may be too different to be optimized for simultaneously pick-up and place.

Test clip connectors

Electronics Forum | Mon Mar 19 11:54:35 EDT 2012 | JB

Hello KaHrpr. I can't seem to find the single row version, also they need to be offset slightly so when you flip them over they align to different pins.

01005 components and reflow profiles

Electronics Forum | Mon Apr 09 21:09:29 EDT 2012 | isd_jwendell

I haven't worked with anything as small as 01005s, but something you didn't mention is the %metal of your paste. I just switch from 90% to 89.5% (AIM NC257-2) and could tell the difference. Just an idea...


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