Electronics Forum | Fri Jun 23 09:11:06 EDT 2017 | jchris
I have a few LED pcb's that have an aluminum substrate that are ridiculous to rework. They heat-sink like crazy and I can't reflow the bad LED's, no matter how much heat I apply. Any suggestions on techniques or equipment to use?
Electronics Forum | Tue Mar 07 19:50:14 EST 2000 | Charles Jim
Hi there, I need some edge emitting laser mount, acting as heat sink also, seen once, from one Japanese company, if you have related info, please email me or reply here. Thanks, Jim
Electronics Forum | Tue Mar 07 19:50:14 EST 2000 | Charles Jim
Hi there, I need some edge emitting laser mount, acting as heat sink also, seen once, from one Japanese company, if you have related info, please email me or reply here. Thanks, Jim
Electronics Forum | Mon Dec 18 17:56:26 EST 2000 | Dave F
Does the thermal conductivity of a copper trace on a printed circuit board change as the copper oxidizes? Is the oxide on copper a thermal insulator? If so, should it be considered in an analysis of thermal resitivity between a ground plane and a h
Electronics Forum | Mon Dec 18 10:50:14 EST 2000 | Charles Harper
Thermagon,Inc,in Cleveland,OH has a product line of high thermal conductivity circuit boards which you should investigate.Check www.thermagon.com and/or call Paul Klouda at 216-939-2310.The 216 area code might have changed to 440.
Electronics Forum | Mon Jun 18 18:28:07 EDT 2001 | davef
We are assembling BGA [Texas Instruments (TMS320C6201)] that has metal slugs in the packaging that act as heat sinks. What are your recommendations for inspecting the solder connections on such devices?
Electronics Forum | Wed Jun 23 13:56:56 EDT 1999 | Stan Frul
Hi Could anyone tell me where i can find information, in the literature or on the Web, concerning measurements of temperature distribution, expansion, stresses in the substrate and heat sink and on the interface between them, that is all the range of
Electronics Forum | Tue Aug 03 21:34:28 EDT 2004 | davef
That must be embarassing to explain the reason that a heatsink falls-off the board at your customer's site. ;-) We have found the best approach involves: * Work instructions that are clear, complete, and unambiguous. * Proper materials and tools to
Electronics Forum | Wed Sep 15 15:16:29 EDT 2004 | davef
It's going to be tougher to get the recipe correct on his bad dude. [As you'd expect.] But to start with, you need to run a channel of your profile on one of the open balls of this particular heat sinked BGA.
Electronics Forum | Thu Jun 02 17:24:19 EDT 2005 | PWH
Could also be a ground plane under one of the terminations of the cap causing heat sink troubles during reflow. One pad liquifies/solidifies before the other. Don't know a good solution for this outside of reworking them.
