Electronics Forum | Tue Apr 23 15:18:02 EDT 2013 | davef
2 oz copper should be 2 oz per ft^2 thick. There is no relationship between thickness and copper weight due to the effect of processing. Since this is a painful way of thinking about things, ppl have reached a compromise and talk about 'nominal thick
Electronics Forum | Tue Apr 23 15:35:45 EDT 2013 | dyoungquist
Check out IPC-A-600. Revision G (July 2004) section 3.2.3 (surface) and section 3.2.4 (internal) give min/max thicknesses for various weight copper. The min also changes depending on what class (1-3) standard you are working to.
Electronics Forum | Tue Mar 10 04:37:44 EDT 2020 | luciano_zhang
I have a files need produce in a urgent time. It's 4 layers PCB with 3 OZ inner and out layer quantity need 10000pcs ,any one know which supplier is aviliable?
Electronics Forum | Thu Mar 12 08:38:47 EDT 2020 | floravictor
Hi, We can produce such pcb, we are pcb factory in Shenzhen. my skype: qjthomasxiao mail: victor@flora-ltd.com
Electronics Forum | Fri Jun 12 09:10:48 EDT 2020 | apcpcba
Hello, we can meet your request, welcome to visit our website: https://www.apc-pcbassembly.com/
Electronics Forum | Thu Jun 11 09:28:57 EDT 2020 | pcbkathay
Dear Luciano, We are PCB manufactured based in China,we can produce the PCB as your requirements as soon as we can, please send the files to my email 284816044@qq.com looking foward to your email.
Electronics Forum | Thu Jun 11 02:32:54 EDT 2020 | beanzheng0
Hi, Luciano This is James from http://www.nextpcb.com We can do your order we have 2 manufacturers over 2500000sq. The 4 layer PCB boards on sale now. Please send your inquiry to support@nextpcb.com Or you can contact me on WhatsApp:+8613243830029 S
Electronics Forum | Wed Jun 09 12:20:26 EDT 1999 | Gang Pan
I am starting a new project which involve 3 oz copper layer with 20 mil components on the top of the board and 0.040" thick copper with D2Pak on the bottom of the board. There is anybody has experience on metal-based PCB reflow process? I guess pre
Electronics Forum | Wed Apr 13 12:39:20 EDT 2022 | SMTA-64386699
We produce some heavy copper multi-layer boards. 4-6 layer typ with 3oz throughout. WE currently are using a Heller 1912EXL with belt speed around 32-36 in/min. I am looking to replace this oven with a more efficient unit. To the best of my knowledg
Electronics Forum | Wed Jun 26 21:05:15 EDT 2002 | ianchan
Hi Dave F, customer calls it "warp", we can call it "twist/bow"..etc. the "warp" occurs on individual PCB cells of 28per each panel. the overall dimension of the panel is 139mm x 168mm, and each individual PCB cell is 2.4mm x 1.2mm. Thickness is 0.
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