Electronics Forum | Tue Mar 19 17:08:12 EDT 2019 | asksmt
Hello Experts, is it acceptable in IPC standard to have two drill hole on a single pad overlapped? soldering and reliability wise ? intent is to solder two parts in parallel together. Thanks for your comments.
Electronics Forum | Fri Apr 19 09:18:29 EDT 2019 | cbart
why wouldn't you just drill one larger hole?
Electronics Forum | Fri Apr 19 13:47:00 EDT 2019 | davef
It's a terrible idea. Through holes should be drilled in the exact center of a pad +/-. Have the two holes go out back and settle this. Whichever hole returns, that hole get to keep the pad. The other hole needs to get its own pad. End of story. Th
Electronics Forum | Thu Apr 05 22:27:06 EDT 2001 | davef
As a band-aid, consider running your chip wave when soldering these boards [Similar to Cals "dance with me babe" suggestion.] If the problem is as broad based as you say and the radial components have a tight fit, consider increasing the holes by a
Electronics Forum | Thu Jan 06 08:03:47 EST 2005 | davef
On solder in vias: It looks like the via are not solder masked well and pick-up solder either: * Solder coating ... OR * During leveling It's possible that the design specifies openings in the solder mask for these via. On solder in the unsupporte
Electronics Forum | Tue Jul 06 18:16:14 EDT 1999 | Boca
| | Is anyone aware of some guidelines regarding through-hole in SMT pads? One of our designers wants to add through-hole leads in some SMT pads for an inductor. The size of the hole is 0.032 inches and takes-up approximately 25% of the pad area.
Electronics Forum | Tue Jul 06 17:03:46 EDT 1999 | Earl Moon
| Is anyone aware of some guidelines regarding through-hole in SMT pads? One of our designers wants to add through-hole leads in some SMT pads for an inductor. The size of the hole is 0.032 inches and takes-up approximately 25% of the pad area. Th
Electronics Forum | Fri Mar 24 06:08:54 EST 2006 | PhilJ
Try using via pads as fiducials. This will avoid the problem of drilling accuracy.
Electronics Forum | Fri Mar 24 03:39:15 EST 2006 | aj
try using drill holes.. i have used these in the past, just recently we used them and placed 0.5mm pitch devices fine.,. This should sort you out for this batch but get onto the Customer and tell them you need fiducials for reliability on placement.
Electronics Forum | Wed Sep 05 21:51:32 EDT 2018 | cannizzaro
I was wondering when creating Gerber drill file from Kicad there is an option to merge PTH and NPTH holes to a single file. How should this value be selected? Since I'm planning to use the prototype service in ALLPCB, and the Gerber is needed
