Electronics Forum | Tue Dec 15 22:23:52 EST 1998 | Erhan Kaya
If that's what you mean, here's what we call them: ROBBER PADS... Pretty close to the "thief" I guess. Those come with the design and if the wave soldering direction is not known at the time of design and/or there's no real estate limitation, the rob
Electronics Forum | Thu Dec 05 17:40:24 EST 2002 | davef
While unfamiliar with some of the terms you use, could this be what you seek? http://www.pcbstandards.com/downloads/Metric%20Environment/General%20Documentation/PCB%20Design/PCB%20Design%20Routing/Metric%20BGA%20Routing.pdf Stepping backwards just
Electronics Forum | Fri Sep 05 09:15:36 EDT 2014 | rgduval
Hi, Edri, It's not uncommon for PCB fab houses to change pad sizes like that, due to design constraints....however, it always aggravates me when they do it without checking with me first. In my mind, that's the first sign of potential bad issues wi
Electronics Forum | Mon Dec 09 21:15:27 EST 2002 | MA/NY DDave
Hi I haven't looked yet at what DaveF gave you. It is my guess that your SJR stands for Solder Joint Reliability. The answer would in general be NO to your question. Usually things in the design community are done in steps that provide a certain
Electronics Forum | Fri Sep 05 06:17:36 EDT 2014 | edriansyah
Hi, We have a problem with our BGA Pad. Our PWB manufacturer make the BGA Pad in irregular form. some big, some small. Please see the picture on attachment. BGA Detail BGA Pitch 0.5 mm BGA Ball 0.3 mm BGA Pad (big) 0.2 mm (as per gerber) BGA
Electronics Forum | Fri Jun 11 03:50:39 EDT 2004 | Scott B
We currently have an issue with via's in pads which we have been living with for some time. The problem has now escalated with the need to increase the via hole size to achieve PCB fabricators aspect ratio's. We are now not only experiencing solder d
Electronics Forum | Wed Oct 18 07:51:14 EDT 2006 | davef
Look here: http://www.circuittechctr.com/ As a low cost approach, use copper foil purchased from a stained glass window hobbyist shop. Cut foil pieces to size with a sharp knife. Epoxy the pieces in place of the damaged pads. Tin and then solder th
Electronics Forum | Fri Dec 20 10:13:38 EST 2002 | davef
The total inductance of a chip capacitor is determined both by its length to width ratio and by the mutual inductance coupling between its electrodes. So, a 1210 chip size has a lower inductance than a 1206 chip. Check with your supplier for recomm
Electronics Forum | Mon Oct 16 17:46:49 EDT 2006 | Dan
Recently I was given a bad Bios Link from Toshiba which fried my Bios and now my laptop boots to a black screen. I recently unsoldered and removed the existing Bios chip and have ordered anotherfor replacement. Unfortunately while removing, i damag
Electronics Forum | Wed Jun 03 13:56:09 EDT 2009 | mika
less total area of voids, which mean a much more strength in the joint and much easier to solder such a cooling pad grounded via vias, with this approach! The same goes for big cooling pads of let say Power transistors without any via etc. Always re
