Electronics Forum: land pattern (Page 3 of 22)

Min spacing for land patterns from PCB edge

Electronics Forum | Thu Mar 20 16:53:32 EDT 2008 | guhansub

Min spacing will be 0.75'' on all the 4 edges

Min spacing for land patterns from PCB edge

Electronics Forum | Tue Mar 25 03:28:12 EDT 2008 | lococost

Thanks Steve, that's very clear!

Re: SMD packages dimensions and solder land information

Electronics Forum | Thu Nov 11 11:38:39 EST 1999 | John Thorup

Try the Professional SMT Component and Land Pattern Book from SMT Plus. Link below. John Thorup

Min spacing for land patterns from PCB edge

Electronics Forum | Wed Mar 19 09:54:44 EDT 2008 | davef

Here's what we suggest: * Keep a 5-mm space between a board edge and a ceramic capacitor. * Mount the capacitor parallel relative to the edge. * Design pads about a half of the termination. * Fixture the board when using your pizza cutter.

Min spacing for land patterns from PCB edge

Electronics Forum | Thu Mar 20 10:59:59 EDT 2008 | fsw

Thnx Dave! I have not seen anyone as yet using fixtures to support brds while using Pizza cutters. Will check it out.

Min spacing for land patterns from PCB edge

Electronics Forum | Fri Mar 21 08:28:35 EDT 2008 | lococost

Boardhouse, would it be possible to attach a picture of such a routed slot together with a V cut? I was always told the 2 don't work together that well because of tolerances.

Min spacing for land patterns from PCB edge

Electronics Forum | Mon Mar 24 12:11:38 EDT 2008 | scombs

Is this what you are looking for? We do this on quite a few boards and it has eliminated component problems from the Cab depaneler (pizza cutter)

Min spacing for land patterns from PCB edge

Electronics Forum | Thu Mar 20 23:01:40 EDT 2008 | davef

Boardhouse: Not to be confruntational, just trying to better understand what you're telling us. When you say, "Standard spacing most board houses would like to see is" blablabla. * What are the units of these dimensions? * You'd like to see these dim

Min spacing for land patterns from PCB edge

Electronics Forum | Tue Apr 01 19:45:07 EDT 2008 | boardhouse

Dave, Sorry for the slow response, have been out of town, The spacing I was referring to was from board edge to copper features. This spacing is required to keep the router and score blades from exposing or hitting the Copper. Regarding the slot I

Min spacing for land patterns from PCB edge

Electronics Forum | Wed Apr 09 14:50:03 EDT 2008 | bradlanger

We use a FKN pizza cutter and found that even with 5mm clearance and the proper orientation of the part larger ceramic capacitors 1812, 1210 would still stress fracture. We have successfully fixed stress fracture problems by adding routed relief slot


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