Electronics Forum: seal and copper and layers (Page 1 of 3)

Does any factory can produce 4 layers blind board with 3 OZ inner and outter layer copper

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?

Does any factory can produce 4 layers blind board with 3 OZ inner and outter layer copper

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

Does any factory can produce 4 layers blind board with 3 OZ inner and outter layer copper

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/

Does any factory can produce 4 layers blind board with 3 OZ inner and outter layer copper

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.

Does any factory can produce 4 layers blind board with 3 OZ inner and outter layer copper

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

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 16:34:55 EST 2005 | CW

If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? If I use 2 mil copper on the outside layers of a PCB, am I limited to what pitch of parts I can use? Specifically, will using 0603

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 16:31:47 EST 2005 | CW

hi Bob, Thanks for the info. I understand your comments, but I am looking for specific guidance, If I am putting chip capacitors on a .063 FR4 board, what size package should we stay away from to avoid cracking? (I realize this is dependent on h

cap size and copper thickness vs part size questions

Electronics Forum | Mon Nov 07 12:25:32 EST 2005 | Rob

Hi CW, Larger chip caps can be susceptable to cracking, but mainly this is due to handling - flexing of boards is the main culprit (the part being mechanically joined at both ends to the board). PCB's usually flex easiest along one axis, and larger

cap size and copper thickness vs part size questions

Electronics Forum | Tue Nov 08 05:00:23 EST 2005 | rlackey

Hi CW, Regarding orientation, yes, your diagram is right - see the following link for confirmation. http://search.murata.co.jp/Ceramy/image/img/A18X/C2EB3C.PDF Regarding information on bending strength you want to talk to your local Murata office

solderability and hasl thickness

Electronics Forum | Wed Sep 10 12:56:09 EDT 2003 | davef

Intermetallic compounds [IMC]: * Form during the alloying process of some metals. In soldering these are Sn, Ni, Ag, Cu, Au. * Do not accept solder. * Increase in depth in logarithmic proportion to both time and temperature. [So during the solder

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