Electronics Forum | Thu Jul 09 22:45:42 EDT 2015 | cathy247
Hello Maxim, we offer below services with Popular Competitive Pricing: －Express PCB Prototyping(2-28 layer) －HDI PCB －Flexible Printed Board(1-8 layer) －Flexi-rigid Printed Board －High Frequency Board(Rogers,Arlon,PTFE) －Blind/Buried Via Board －High
Electronics Forum | Fri Apr 10 13:25:08 EDT 2009 | jefflkupkt
Layer 2 is the ground plane layer of a 4 layer board. After installing a 2.5 mm DC power jack and 0.1 center SIP header by hand, the ground pin disconnects and causes an open. My board supplier said they passed Electrical Test. Prepreg was within
Electronics Forum | Mon Apr 13 12:06:53 EDT 2009 | jefflkupkt
BoardHouse, Thanks for the reply. The board supplier did cover the cost of the bare boards. Five years ago I saw a different part pass ET only to fail at final assembly test as well. One engineer called it "acid trap" on the inner layers where the
Electronics Forum | Fri Apr 10 18:51:39 EDT 2009 | boardhouse
Hi Jeff, Your board supplier could be correct in this way. The board could have had just a hair left of copper on the circuit, which would hold up under the electrical test process, but once you powered it up, then there was enough juice to burn th
Electronics Forum | Tue Sep 07 11:17:43 EDT 2010 | ysutariya
The only issue is that now you are paying for a 4 layer board and only getting a 2 layer board. In the long run, it will definitely cost you if this is a higher running product. Other than that you shouldn't have any issues.
Electronics Forum | Thu Sep 02 15:01:52 EDT 2010 | James Neal
Manufacturing-wise, is there a problem with doing a single panel with both four layer and two layers designs on it? I do prototype runs with multiple designs on the same panel, and I'd like to start including four layer. It seems to me that I can g
Electronics Forum | Fri Apr 18 11:05:47 EDT 2014 | horchak
First things first. Check the manufactures specs on the electrolytic caps as they may not be able to handle the lead free temps.
Electronics Forum | Thu Apr 24 12:18:01 EDT 2014 | cyber_wolf
You must thermally profile your circuit boards with a data-logger and thermocouples. Just putting in oven set points and looking at solder joints is not enough. Reference IPC-7530
Electronics Forum | Thu Apr 17 17:57:13 EDT 2014 | proy
Hello We use a 5 zone conceptronics HVN70 and never before have we had something we could not do including 6 layers Rohs complicated boards. Recently we had a larger - simple 2 layer board - all 1206's etc however there are 15 pcs of a LARGE high m
Electronics Forum | Wed Apr 23 09:38:05 EDT 2014 | rgduval
Get in touch with your paste manufacturer. They should have a data base of different oven types/zones, and can give you "baseline" settings for a medium thermal density board that has been proven to work well with their paste. After that, it sounds
