Electronics Forum | Tue Jan 21 13:43:12 EST 2014 | rgduval
Jorge, Your description of the process sounds about right. A fixture to hold the flex cable taut (and in a repeatable location) that allows you to paste/place/reflow is essential. As for notes: Be hyper aware of moisture/humidity in regards to
Electronics Forum | Fri Nov 30 05:28:12 EST 2012 | d0min0
Hello, we are starting with the flex pcb production, can anyone advice a company in europe that is capable of design and manufacture palett / carriers / frames that allow to produce flex boards in standard smt process regards
Electronics Forum | Mon Mar 10 14:03:18 EDT 2008 | swag
Has anyone ever used local fids on flex circuits that are applied by the board house as black ink dots? Good or bad experience? We have a flex board that has two identical 60 pin, fine pitch connectors on it. From limited experience and reading so
Electronics Forum | Thu May 29 10:42:40 EDT 2003 | swagner
So is it fair to say that on a moisture laden double sided flex circuit you could see an increase in tombstoning on the 2nd pass due to warpage created by delamination? In other words a 0603 for instance could tombstone due to the delaminated surfac
Electronics Forum | Wed Mar 16 09:48:44 EST 2005 | jdengler
I'm with Russ on this one. Had a similar problem with a flex circuit that used gold contacts into a ZIF connector on a ridged PCB. After may test I finally convinced the customer to do some test on the ZIF connector. The end result was flux contam
Electronics Forum | Thu Jun 09 10:41:30 EDT 2005 | HOSS
Can anyone recommend a flex/rigid-flex supplier stateside that can do the following: Build to IPC class III (not necessarily certify) Multi-layer Controlled Impedance 2-4 week turn without price premium Take less than 1 week to quote Any info appre
Electronics Forum | Wed Jul 16 00:15:38 EDT 2003 | iman
just out of curiousity, why the special nitrogen cabinet concerns for gold plated flex PCB? common "myth/fact" is gold is an "inert" coating layer that is not going to react with room environment conditions *that much?*. Am learning here, so would ap
Electronics Forum | Thu May 29 10:05:10 EDT 2003 | swagner
I hate to answer a question with a question but what are the particular effects of moisture absorption in a flex circuit?
Electronics Forum | Wed Sep 29 12:17:03 EDT 2010 | swag
You might try assembly carrier tape such as Tacsil on your fixtures. Beware - arrays are very diffult to run in SMT flex unless you have no fine pitch.
Electronics Forum | Fri Oct 01 09:47:36 EDT 2010 | noid
Yes, they should be baked prior. We pre-bake all polyimide fabs, flex or not. They are prone to delam.
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