Electronics Forum: 0

SMD coil land pattern recommendation size

Electronics Forum | Mon Sep 18 01:47:18 EDT 2017 | bukas

I would go with wire thickness + 0.4 to 0.8 mm for pad width, and pre-tinned lenght + 0.5mm what seems to me like problem is that it can easily roll off the pads in reflow oven

PCB v-score depaneling question

Electronics Forum | Tue Nov 28 13:23:34 EST 2017 | georgetruitt

For connectors, we maintain a 0.05" clearance from components edge to the center of the V-groove score

How much is the exposure tolerance for PCB auto dry film?

Electronics Forum | Sat Sep 29 04:55:49 EDT 2018 | sanneyyu

for pattern position with +/-2mil tolerance, pattern width may minus 0.5mil max with the traditional auto exposure.etching tolerance determined by the base copper foil.

What defect in SMT will be cuased by dust contamination?

Electronics Forum | Mon Mar 15 01:38:46 EDT 2021 | researchmfg

Thanks for the answer. Did you really find the dust block the nozzle and sensor? By the way, If SMT environment need to control the dust then what size of dust need to be controlled? 0.3um, 0.5um or 10um?

What is the naming conventions for SMT Packages?

Electronics Forum | Tue Sep 21 20:58:11 EDT 2021 | avolovich

Your Mydata should have come with a myriad of preprogrammed packages, specifying height (ex. 0805-05, 0805 components with height of 0.5mm).

Which (cheap / old) pick and place for 0402, 0.5mm FPC small line

Electronics Forum | Fri Feb 18 16:29:28 EST 2022 | jdengler

Look for local support. At some point you will need someone to fix the machine. It is much cheaper to have someone local than to fly someone in from far away.

Which (cheap / old) pick and place for 0402, 0.5mm FPC small line

Electronics Forum | Fri Feb 18 20:37:14 EST 2022 | dwl

0402 imperial? all those machines should be able to handle that. Even an old Quad 4C can place those. As others have said, availability of parts in your area will be the issue.

Which (cheap / old) pick and place for 0402, 0.5mm FPC small line

Electronics Forum | Sun Feb 20 10:54:14 EST 2022 | compit

Opal XII, MG-1 (and substitites from Yamaha available in Asia). Unlimited spare parts, cheap feeders, etc. MG-1 is faster, better for service (opinion of a friendly serviceman)

Which (cheap / old) pick and place for 0402, 0.5mm FPC small line

Electronics Forum | Wed Feb 23 12:12:45 EST 2022 | compit

I bought a Philips Emerald-X from the US and switched to 230VAC - you just need to switch jumpers on trafo in the machine.

Which (cheap / old) pick and place for 0402, 0.5mm FPC small line

Electronics Forum | Wed Mar 09 07:17:58 EST 2022 | sfgjamescui

I think your question is the processing of FPC mounting, this is a easy solve issue in China.


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