Electronics Forum | Wed Feb 25 08:34:00 EST 1998 | Earl Moon
CERAMIC CIRCUITRY Starting with hybrid thick film circuits in 1965 at Sperry Flight Systems, I have been involved with ceramics (usually aluminum oxide) as the substrate material. Then, we developed "multilayer" circuitry (replacing "cordwood" module
Electronics Forum | Fri Oct 05 09:15:23 EDT 2001 | Ben Bierlein
It is a PCB material that has a woven glass / epoxy internal core and glass veil surface. It is in between the paper materials (FR1,FR2 and CEM1) and FR-4 as far as strength and cost. It is available in HiCTI material for high power applications.
Electronics Forum | Mon Dec 14 13:20:56 EST 2009 | stepheniii
Xrays go through aluminum quite well. I've xrayed BGAs with heat sinks that were well over an inch tall and they only made faint shadows. What material is the bottom of the PCB? And how are you going to bond to it?
Electronics Forum | Fri Feb 24 02:33:29 EST 2012 | soppcb
Hi, guys, this is jack from soppcb technolgy in shenzhen, we are a professioanl manufacturer of PCB and PCBA, including single sided pcb, double boards, multilayer boards, HDI, aluminum led boards and so on, if any needs, pls contact me here or my ad
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 | Thu Jun 04 02:16:43 EDT 2020 | SMTA-Robert
Looking for CTE and young's modulus values for aluminum backed PCB for solder joint predictions. The data sheets are a bit sparse, and the weighted average method somehow doesn't feel appropriate. Any advice is welcome. Thanks!
Electronics Forum | Wed Jan 12 13:42:19 EST 2011 | dwonch
Hi All, I'm hoping there is a PCB expert or two hanging around. We're having some solderability issue on our boards. The finish is ENIG but it doesn't seem to be related to the finish process itself. We did SEM and EDX analysis and found aluminum an
Electronics Forum | Mon Nov 26 14:48:43 EST 2001 | PeteC
The tooling fixture has tooling pins to accomidate your PCBs. Typical PCB tooling holes are 0.125" dia. non-plated thru holes and 0.250"x0.250" from the edge of the PCB. Check out this link to EMC Global Technologies. They mfg. tooling fixtures for U
Electronics Forum | Fri Sep 27 11:20:21 EDT 2002 | davef
Mar, The previous post makes the best point. Your finish spec depends on the COB process you plan to use. Is your process: * Gold wire bond * Aluminum wire bond * Flip chip * Er, watt
Electronics Forum | Tue Apr 18 19:51:11 EDT 2006 | davef
We don't understand why your aluminum pallet requires high temperature. Is it that you don't want to slow the conveyor?
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