Electronics Forum: hole location accuracy (Page 1 of 29)

Glued component location accuracy after reflow

Electronics Forum | Mon Jul 31 18:41:07 EDT 2023 | emeto

Chip-bonder glue(Loctite 3612 for example) will harden at lower temperature way before paste goes to liquidus stage, so it will hold the part in place.

Glued component location accuracy after reflow

Electronics Forum | Tue Aug 01 06:24:31 EDT 2023 | simonr

@srikant I'll check their process, meanwhile thanks for the reminder to put fiducials nearby. @MagyarT and Evtimov it sounds like it should work OK, the machine specs are 35um (3 sigma) so the results will be interesting, will post when I get some d

Glued component location accuracy after reflow

Electronics Forum | Tue Aug 01 08:19:10 EDT 2023 | shrikant_borkar

you are welcome, don't forget to set the search window (Fiducial Mark if 1D. then the search Window is set to 3D). Please reply once you have done.

Glued component location accuracy after reflow

Electronics Forum | Mon Jul 31 07:37:57 EDT 2023 | tommy_magyar

Hi Simon, Yes, red glue should help, assuming that it is being dispensed by a glue dispenser. For stencil printing I used yellow glue in the past (can't remember the brand). Your pick and place machine should be able to achieve on it's own 35 um

Glued component location accuracy after reflow

Electronics Forum | Fri Jul 28 11:12:18 EDT 2023 | shrikant_borkar

Hi SimionR, Is Glue Process Dispencing or Glue Printing thru Stencil? if Its Dispencing Glue thru a Nozzle then its a controllable process. I have performed it thru HDP-3 Panasonic. Placement of Glue either one DOT or Process must be aligned with th

HELP!! via sizes, location

Electronics Forum | Tue Oct 05 10:48:46 EDT 1999 | Frank Fossett

I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer (he is also new ) wants to use an .035 pad with a .021 dia. hole, there are no via's u

HELP!! via sizes location

Electronics Forum | Tue Oct 05 10:13:48 EDT 1999 | Frank Fossett

I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer wants to use an .035 pad with a .012 dia. hole, there are no via's under the zero clea

Re: HELP!! via sizes, location

Electronics Forum | Wed Oct 06 04:23:09 EDT 1999 | Brian

| | I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer (he is also new ) wants to use an .035 pad with a .021 dia. hole, there are no via

Re: HELP!! via sizes, location

Electronics Forum | Tue Oct 05 12:42:43 EDT 1999 | Chris May

| I am a new employee at a company that has had a large turnover of employees over the past year. I am working on a board (components on one side only), the engineer (he is also new ) wants to use an .035 pad with a .021 dia. hole, there are no via's

Component location related to Fiducial marks

Electronics Forum | Mon Sep 06 09:55:52 EDT 2004 | Joe O.B.

Hi, We're going to migrate our boards from through-hole to SMT, and I'm dealing with the PCB layout. I've found a lot of references for fiducial marks but none of them states if components can be placed beyond the marks limits or only within the are

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