Electronics Forum | Wed Dec 10 16:15:24 EST 2008 | terryl
on the front end in design, minimize the pth connections to ground planes. this takes alot of work by the pcb designer and the approval of the design engineer. connect maximum of 4 ground planes to pth, minimum 1 plane. use spoked connections. ev
Electronics Forum | Fri Jun 19 08:46:50 EDT 2009 | seer
Hello all, we recently rolled out our new SMT products and I have to write up a proposal for possible customers. Does anyone have a link or info on why SMT is superior to through hole techonolgy? Not concerning the maufacturing process but in relatio
Electronics Forum | Wed Sep 09 08:25:40 EDT 2009 | davef
We understand that you have boards in production that you need to ship. In the future, you could eliminate your moisture caused blow hole issue a lot more simply than baking. Consider requiring that your board fab plate the copper thickness of throug
Electronics Forum | Sun Apr 11 23:29:39 EDT 2010 | cadcopac
Hi chas, Should you still be in the market for "thru hole to smt conversion" services we are doing this sort of design all the time even converting a supplied stuffed board into gerber files for manufacturing with a parts list and all assembly files
Electronics Forum | Wed Sep 01 08:16:55 EDT 2010 | sachu_70
Drill holes or tooling holes have higher tolerances than Fiducial marks during PCB fabrication. I would certainly recommend Fiducial recognition as a more reliable approach for better accuracy. You could re-calibrate the Vision system file used for
Electronics Forum | Thu Apr 07 09:04:19 EDT 2011 | mosborne1
First of all you need a new board house. You should quote us http://www.americancircuits.com. This really looks like a poor drilling operation with the blow holes. Blow holes are usually caused by two main problems. Improper drilling and/or moisture.
Electronics Forum | Fri Aug 05 18:10:11 EDT 2011 | davef
* Attaching thermocouple to CSP or BGA is a challenging task. Usually a hole is drilled at the center and the thermocouple is routed through the bottom of the board and to the area of interest. In particular, since the CSP stand off is very small, a
Electronics Forum | Fri Sep 02 16:22:37 EDT 2011 | ttaubert
Are there SMT mechanical components like that could be used for orientating PCB-level optics on the board and do not require holes in the board? Their final position would solely depend on the reflow. A height of 1/8" would be sufficient. I was con
Electronics Forum | Thu Jan 05 17:53:47 EST 2012 | warwolf
so our annual solder drain and inspection lead us to discover holes in the ceramic paint covering the inner layer of our solder pot, looks like some of the finer layers of the ceramic are left behind still protecting the steel, thinking about repairi
Electronics Forum | Fri Mar 23 00:12:55 EDT 2012 | posinpcbfactory
J-STD-003B prescribes test methods, defect > definitions and illustrations for assessing the > solderability of printed board surface > conductors, attachment lands, and plated-through > holes utilizing either tin/lead or lead-free > solders. Th
winsouce.jpg)
.png)
