Electronics Forum: stiffeners (Page 2 of 8)

How to install FBGA ICs on both sides of Flex boards with no stiffeners ?

Electronics Forum | Fri Aug 10 16:01:51 EDT 2018 | ks0707

Hi Thomas, Thank you for your advice. BTW, unfortunately, I received negative answer from the Fixture house same as below. =========== We have an issue here. Your board is too thin. It is fine to make the fixture for first side. But when you run

PCB Stiffeners

Electronics Forum | Mon Nov 02 23:12:13 EST 1998 | Kelly

We run stiffeners on all of our product through our wave solder process and most of our product through our reflow and adhesive cure oven. The problem is we continually put on and take off stiffeners because of poor reliability of stiffeners staying

Re: PCB Stiffeners

Electronics Forum | Tue Nov 03 12:23:00 EST 1998 | Bill Schreiber

Kelly, How are you cleaning the stiffeners? The Smart Sonic cleaning process has been very successful in such applications. Visit the Smart Sonic Web Site at: www.smartsonic.com Or call me at 1(800) 806-440-R. Regards, Bill | We run stiffeners

Re: PCB Stiffeners

Electronics Forum | Wed Nov 04 16:56:27 EST 1998 | Chris Lampron

| | We run stiffeners on all of our product through our wave solder process and most of our product through our reflow and adhesive cure oven. The problem is we continually put on and take off stiffeners because of poor reliability of stiffeners sta

Re: PCB Stiffeners

Electronics Forum | Tue Nov 03 10:33:10 EST 1998 | Chrys

| We run stiffeners on all of our product through our wave solder process and most of our product through our reflow and adhesive cure oven. The problem is we continually put on and take off stiffeners because of poor reliability of stiffeners stayi

Screen printing warped boards

Electronics Forum | Thu Apr 20 17:51:52 EDT 2006 | Geo

When we have warpage issues we use Titanium Panel Stiffeners even though the stiffeners are mainly used for Wave we find little issue for reflow. Mind you the boards have to be large enough.

warpage after reflow

Electronics Forum | Tue Oct 07 08:44:49 EDT 2014 | emeto

Hi, 1. I will run the board on the mesh if single sided. 2. For double sided board, I will try stiffeners. 3. If stiffeners don't work, then you have to create a handling fixture(holds the board and has enough openings to let the air flow to the PC

FR4 stiffener

Electronics Forum | Tue Jun 28 20:38:58 EDT 2022 | smith88

I have a question on NEMA Grade FR-4 mechanical stiffeners, Understand that they do not required to be void free and are common, but is there any concern I should have of potential in the field use problems from them?

Flex Circuit Assembly Process (Sitiffeners)

Electronics Forum | Wed Sep 29 11:25:49 EDT 2010 | mazjal7

Hi, We are placing a Surface Mount connector on a flex circuit, we are planing on using SMT carriers to support the flex through the SMT process. Underneath the connector a stiffener needs to be adhere, I'm not sure if we should have the flex manu

Flex Circuit Assembly Process (Sitiffeners)

Electronics Forum | Fri Oct 01 08:15:02 EDT 2010 | rgduval

Is the stiffener a piece of FR4, or a component that needs to be installed? We've done a number of flex assemblies taht have a rigid stiffener, generally a piece of rigid flex, or FR4 that has the components mounted on it. This type of stiffener


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