Electronics Forum: pcb and delamination (Page 5 of 72)

Desiccants and pcb finish degradation?

Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef

I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability

multilayer and difficult and high quality pcb supplier

Electronics Forum | Fri Sep 06 03:06:18 EDT 2013 | 5pcb

We are a complex pcb supplier in China. We are good at making prototypes and multilayer (8-20)layers PCB. If you think your boards are difficult enough, you can contact me. Let's talk details. sales2@dmele.com Name:Lily Tel:0086-0755-23006293.

multilayer and difficult and high quality pcb supplier

Electronics Forum | Fri Sep 06 03:11:31 EDT 2013 | 5pcb

Welcome phone call from all over the world.

Repair of FR4 double-sided pcb

Electronics Forum | Thu Aug 22 07:48:30 EDT 2002 | Dave Milk

While separating individual pcbs from a panel, operators have caused delamination of the edge of the board, at the tabs that were cut. How can these boards be repaired? The delamination causes them to fail J-STD-001C 9.2.1.1.d. Also, what would yo

Reflow soldering a Flexi-Rigid pcb

Electronics Forum | Wed Apr 01 04:34:41 EST 1998 | Alan Pestell

We are looking at reflow soldering some Flexi-rigid pcbs. I have heard that IR reflow soldering can make the Polyimide "self heat" and cause de-lamination. Does anyone have any info.

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 09 11:16:06 EDT 2016 | mekmat

Hello, I would like to ask you about the minimal distance between components and border of pcb especially V-cut to avoid crack of component during depaneling? I need some standard (IPC or something) where is this defined? Thank you for your support

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 30 12:39:13 EDT 2016 | mekmat544

Thank you for your answer, but I am litte bit confusing. There are parameters of V-scoring but with put values. How can I get values for V-scoring for pcb 1,6mm thickenss. Thank you. M.

help to id and purchase pcb transformer from LOWRANCE GPS

Electronics Forum | Sat Jun 25 15:20:03 EDT 2016 | skipper6567

I have a mini/micro transformer that is mounted on a pcb inside my lowrance gps/plotter. I have removed it from the pcb. It has 5 through hole pins, 3 pins out bottom one side and 2 pins out bottom on opposite side. The transformer has yellow tape ar

help to id and purchase pcb transformer from LOWRANCE GPS

Electronics Forum | Sun Jun 26 08:34:18 EDT 2016 | davef

My guess: http://www.gcitechnologies.com/

The minimal distance btw component and the edge of pcb

Electronics Forum | Sun Oct 09 16:57:30 EDT 2016 | davef

IPC 2222A Sectional Design Standard for Rigid Organic Printed Boards, 5.3 Design Requirements for Printed Board Assembly


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