Electronics Forum | Wed Sep 19 13:43:49 EDT 2001 | jschake
I cannot report having experience with 0201 printing applications on flex circuits. Generally, I would be concerned with handling of the flex substrate. A carefully designed vacuum capable custom tooling fixture would likely be required to ensure p
Electronics Forum | Thu Jun 26 09:04:43 EDT 2003 | caldon
We had a "Spring loaded" fixture that pulled the Flex tight and used loads of Board supports. There were pins that went through the Connectors holes and held the flex firm. We only had a few components so it was no problem. Lucky for us because the f
Electronics Forum | Fri Mar 16 13:47:56 EDT 2007 | ck_the_flip
Another thing to look out for... Flex circuits, if not fixtured properly tend to move around and, well, "flex" during screen printing. At another place I worked, we fixtured the flex circuit on a SMT pallet on the corner tooling pins to "stretch"
Electronics Forum | Thu Sep 16 07:07:34 EDT 2004 | C Lampron
Hello Chris, "It sticks up about 3/8" or so above the surface of the board." Is this over the ridgid portion of the PCB or in between? Is it possible to create a support fixture for printing that has relief that will allow the flex to bow downward i
Electronics Forum | Fri Apr 30 08:28:39 EDT 2004 | davef
Roger Saunders, President Saunders Technology, Inc wrote a fairly unbiased paper that compared different thermocouple attach methods. You can probably find it on their site. In it, about gluing thermocouples, he says: There are two general classes
Electronics Forum | Tue Jan 16 20:34:17 EST 2007 | davef
DAVE�S BOOKSHELF ASSEMBLER�S ESSENTIALS Title: Soldering in ElectronicsAuthor: RJ Klein WassinkPublisher: Electrochemical PublicationsISBN: 090115024XPublication date: December 1989 I know, I know. The book was written in 1989!!!! I use this b
Electronics Forum | Fri Aug 08 11:37:09 EDT 2008 | pjc
Yes, sure. In fact in some applications ICT is coming back. Mainly due to the fact that more and more SMT discrete components have no markings, so AOI cannot tell you if you have the correct value on the PCB. Fixed pin or flying probe ICT is a valuab
Electronics Forum | Thu Apr 13 13:02:03 EDT 2000 | Paul Peterson
Hi fellow problem solvers,... We suspect a planarity problem with our 6 mil wide flex circuit pads having height variance of up to 2 mils after print and reflow. This is contributing to a placement skew with our TAB bonder... Has anyone had any succe
Electronics Forum | Thu Jul 05 17:40:21 EDT 2012 | ck_the_flip
DaveF, What is your prediction if one tries to put a solder iron to it? Will the component bridge? I know hot-bar soldering is more common for things like Flex Circuits (with silver-filling epoxy), etc. and not so much for things where standard so
Electronics Forum | Fri Nov 03 13:58:25 EDT 2017 | mattmunoz2013
Hello, I am currently in the process of purchasing a plasma chamber for the purpose of activating the surface of flex circuits so that they bond more readily. In addition I need to purchase a gas cylinder for the chamber, specifically one that is a
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