Electronics Forum: printed circuits (Page 1 of 56)

Assemby of flexible printed circuits

Electronics Forum | Wed May 16 11:19:08 EDT 2012 | fulgen

Hi Guys, I´m looking for information about processing smt components on flexible printed circuits (printing, SMD assembly,reflow soldering and laser cuting). These flexible circuits comes from a roll of 300 mm width. I found some information about ro

Assemby of flexible printed circuits

Electronics Forum | Fri May 18 23:48:02 EDT 2012 | mspcb

Hi, Since you're looking information about flexible printed circuits,a book entitled "Printed Circuit Boards R. S. Khandpur" could give you lot of information about flex circuits from Design, Fabrication, and Assembly Phase. The book contains compr

Assemby of flexible printed circuits

Electronics Forum | Thu May 17 08:48:26 EDT 2012 | fulgen

Many thanks davef

Assemby of flexible printed circuits

Electronics Forum | Thu May 17 09:24:30 EDT 2012 | davef

These notes are from ~2005-6. I remember pictures of the pallets and the reliefs on the stencil. Bob may still have his presentation online. Check his site.

Assemby of flexible printed circuits

Electronics Forum | Mon May 21 11:14:06 EDT 2012 | joeherz

Polymide is like a sponge and absorbs moisture much faster than rigid substrates. Pre-bake your substrate for 2-4 hours at 125C and perform your soldering within 1 shift thereafter or seal in moisture barrier bags.

Assemby of flexible printed circuits

Electronics Forum | Tue May 22 18:53:21 EDT 2012 | swag

If your washing them in-line, heavy silicon mesh works good in cages to keep them from flying around.

Assemby of flexible printed circuits

Electronics Forum | Wed May 23 13:32:01 EDT 2012 | rrpowers

There is also a good reference book on flexible circuits from Joe Fjelstad. http://flexiblecircuittechnology.com/flex4/ This book covers everything from creating the flex circuitry itself to the assembly of flex circuits. Also, roll-to-roll assemb

Assemby of flexible printed circuits

Electronics Forum | Mon May 21 10:25:16 EDT 2012 | swag

Ask for board fiducials if you're running arrays. Global fids on the panel do not work well. One handy product we use on flex is "Tacsil". Works well on SMT pallets as well as router operation. It's double sticky stuff that helps hold on to the P

Assemby of flexible printed circuits

Electronics Forum | Wed May 16 15:40:56 EDT 2012 | davef

Here's some notes from a Bob Willis presentation Assembly of Flexible Circuits with Lead-Free Solder Alloy [Bob Willis leadfreesoldering.com] * Flexible Circuit Construction ** Base Material - 0.05mm Copper 18/18 um ESPANEX from Holders Technologies

printed circuit board assembly

Electronics Forum | Sun Aug 05 01:31:08 EDT 2012 | dws123

printed circuit board assembly used to mechanically support and electrically connect electronic components using conductive pathways.it is a electronic device made by copper.it is a cheaper and useful .so we used in electronic devices.

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