Electronics Forum | Tue Mar 20 15:59:15 EDT 2007 | blnorman
We use preprinted labels and laser coding. For PCB we laser mark with CO2 (NdYAG for the aluminum heat spreaders). We either have an epoxy legend to burn out or we burn the solder mask to expose the copper ground plane underneath. Laser is a much
Electronics Forum | Mon Jan 10 18:22:43 EST 2011 | eadthem
What we use for boards the engineers made to big is aluminum flat bar 1/8 to 1/16 thick about 1 inch wide. we fold it in 1/2 so it fits snuggly on the pcb and just press it on the ends before reflow. id assume the same thing would work on wave but
Electronics Forum | Thu Jul 13 02:30:29 EDT 2017 | jandon
We are using hot-plate. It is the safest method to rework aluminum substrate PCB's. http://www.martin-smt.de/en/rework/products/pre-heater-hotbeam.html "For efficient rework on heavy electrical systems with flat bottom surface and LED PCBs the pow
Electronics Forum | Thu Aug 31 09:06:23 EDT 2017 | hxamalia
Hello ALL Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We forcus on producing Aluminum PCBs for LED , please contact with me now ,thanks Email: amalia@hx-circuit.com Sky
Electronics Forum | Thu Aug 31 08:44:52 EDT 2017 | hxamalia
Hello Kubabel, Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We forcus on producing Aluminum PCBs for LED , please contact with me now ,thanks Email: amalia@hx-circuit.com
Electronics Forum | Wed Jul 12 08:49:38 EDT 2017 | williamaxler
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? > I ha
Electronics Forum | Fri Feb 10 03:14:53 EST 2017 | soldertraining
Which is the best way to clean the PCB after soldering? Is it good enough with IPA (isopropyl) or with the Flux Remover spray? However, we use a lead free solder wire (3,5% flux inside the core) and after the soldering its a visible wet and surface g
Electronics Forum | Thu Mar 16 01:43:15 EDT 2017 | soldertraining
Hi! I have a very basic question about PCB cleaning. Which is the best way to clean the PCB after soldering? We use a lead free solder wire (3,5% flux inside the core) and after the soldering its a visible wetting,flux around the joint. When using th
Electronics Forum | Wed Aug 09 19:14:15 EDT 2006 | Board House
Our Manufacturing policy regarding welds is as follows. 1) Inner layers - depends on Core thickness and line width. Our shop will not do any welding on core thickness less then 5 mils. or line width less then 5 mil. Good AOI practices reduce the a
Electronics Forum | Sat Mar 06 12:33:21 EST 1999 | Dean
| | I'm having a fun time between BGA rework/repair using an SRT 1000 and SPC efforts (much easier) using DEK stencil printing processes and BTU reflow with 6 Fuji lines in between. | | Concerning the BGA stuff, I'm getting about 60% success using
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