Electronics Forum: max width for xp-143 (Page 1 of 1)

Re: Land patterns for 0612 and 0508 capacitors

Electronics Forum | Tue Nov 30 21:23:55 EST 1999 | cklau

hello; When we are doing component land pattern design , one thing will always be in our mind; that is the basic criteria or common land pattern design guideline for reflow and flow solder assemblies. For basic fomula in calculating resistors are:

Looking for trays to lay boards on in reflow oven

Electronics Forum | Mon Jun 10 10:12:42 EDT 2019 | assuredtech

What is the year, make and model of your oven? Are you running it with Upstream and Downstream (pre-reflow, post-reflow) conveyors? Is the qty of the product low, medium or high? What is the max process width of the oven? what is the max board with o

Looking for trays to lay boards on in reflow oven

Electronics Forum | Thu Jun 13 09:39:43 EDT 2019 | don_julio

Problem is I don't have a mesh belt (lesson learned). Our conveyor is pins. If I laid some scrap pcb's spanning the conveyor pins on the long dimension of the board, I'm confident it would sag. We get a bit of sag today in our 1.6mm thick boards whi

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.


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