Electronics Forum: double sided pcb (Page 5 of 194)

Re: Double sided PCB

Electronics Forum | Wed Apr 26 10:59:54 EDT 2000 | Jose Baez

Sal: You are Correct running firts the reflow side then glue side. In my Experience I've seen a reverse procesess( first glue"cure" and then reflow side) but the quality results were not good, because We realized the Glue tent to cristalise and when

Re: Double sided PCB

Electronics Forum | Wed Apr 26 11:50:18 EDT 2000 | Wolfgang Busko

Hi Sal, the way you do it has IMO some advantages: - no sophisticated support for the topside print - no extra thermal stress for the the bottomside bonding material - less possibilities to lose bottomside components by handling One disadvantage mig

Re: double reflow

Electronics Forum | Wed Feb 10 07:50:52 EST 1999 | michele sommaruga

I am referring to reflowing twice. Fist time I reflow the up side, turn the PCB and reflow the bottom side. By double reflow are you referring to double sided reflow? Or are you referring to reflowing twice? I would like to have informat

Double sided design

Electronics Forum | Wed Aug 24 11:48:37 EDT 2005 | Anthony

Hello, we are currently designing our first PCB with surface mount components on both sides of the board. I understand about solder thieves in order to help short circuits. Are there any good white papers or books which identify the best practices w

pcb manufacturing

Electronics Forum | Thu Jan 14 04:45:16 EST 2016 | saimen

Hi There , Glad to contact with you , Here is Saimen in Tianweisheng , wish we will have a good cooperation in the furture if we have the honor . Our company is one of the largest custom-made PCB manufacturer in China. We can OEM,ODM,EMS single side

Reflow profiling of double sided assemblies

Electronics Forum | Thu May 23 09:25:39 EDT 2013 | cyber_wolf

How many of you run a different oven recipe for the secondary side of a double sided reflow assembly. In other words, would you use the same recipe for both sides ?

support pins for double sided boards

Electronics Forum | Tue Sep 05 06:23:19 EDT 2006 | jonatf

Hi guys, I want to improve the set up of our printing machine(EKRA) especially on a 0.5mm thickness double sided boards.I find the support pins very time consuming.. any advice?? thanks.

Re: double sided step by step

Electronics Forum | Tue Oct 05 02:47:01 EDT 1999 | Eric

Hi everyone, I need some help on the whole process of double sided surface mount. We have been doing surface mount for about 3 months and we're getting ready to take on our first doule sided board. I just need some step by step process regarding so

Reflow profiling of double sided assemblies

Electronics Forum | Thu May 23 10:29:15 EDT 2013 | emeto

We would usually have the bottom zones at the reflow with 10 degrees less than the top ones for the secondary side. This we proved helps to keep the parts of the primary side on the board.

support pins for double sided boards

Electronics Forum | Wed Sep 06 13:43:59 EDT 2006 | pr

Me tinks.. pr


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