Electronics Forum | Tue Nov 07 09:26:37 EST 2000 | Peter Barton
Adam, The most common cause for this problem is a variation in the plating thickness of the through holes, particularly if they are Sn/Pb solder levelled PCB's. Most pressfit connectors require a fairly tight control on the diameter of the holes to
Electronics Forum | Thu Sep 23 22:31:25 EDT 1999 | Dave F
| | i'm sure everyone has run into this at one point or another. I have a thin pcb .025 that is single up that has to be built on a pallet. does anyone have any tricks to the pallet design that will help to hold these boards down during the scree
Electronics Forum | Wed Feb 09 10:20:26 EST 2000 | Sal
Currently we have started seeing an issue around a scuzzy connector.The problem being that during insertion of this connnector a couple of pins refused to be inserted and as a result fold over, this folding of the pin is causing the pin itself to fra
Electronics Forum | Fri Sep 21 13:04:58 EDT 2007 | jmelson
Hello, Is anyone using an SMT pick&place machine to insert single contacts into PC boards? I have some boards that have 32 female contacts for 1mm pins, and 16 contacts for 0.5mm pins. I have been using Mill-Max for these contacts, getting the sma
Electronics Forum | Wed Aug 24 16:30:11 EDT 2016 | shawn_halo_1
I have a 1oz Flex PCB (FPC) that has 2 0.4mm pitch connectors that need to be SMTd and 9 4.5x1.0mm pads that have conductive rubber contacts that are press fitted onto the FPC. The FPC has a one time bend radius of 15.5mm. Image is attached that show
Electronics Forum | Wed Oct 30 17:11:59 EDT 2019 | etmpalletguy
Yo Ho! I'm a little late to the party, sorry! Flex can be a simple PCB to process through Screen, Pick & Place & Reflow, if the card is designed properly. 4 symmetrical tooling holes .125" diameter and 5mm in on each corner of the card. Wedge Effect:
Electronics Forum | Thu Oct 17 09:21:24 EDT 2019 | proceng1
We've been getting more and more flex and rigid-flex assemblies. Making carriers for mounting the boards to go through printer and pick & place is becoming more challenging with the size of some of the arrays. Normally we use a pair of pins tha
Electronics Forum | Wed May 30 15:40:14 EDT 2001 | davef
Slappy, Most of our discussions about flex came before the last great SMTnet.com server transition that destroyed the archives. Consider custom building carriers with tooling holes, vacuum line holes, alignment pins, multiple layers, etc. from uncl
Electronics Forum | Thu Feb 16 09:37:11 EST 2006 | mgillespie
hi, > > we tried to introduce form-flex a few > years back and it caused more problems than it > fixed. > > Switched back to pins and no > problems. > > It might have improved since but I > would be reluctant to get them again unless I was >
Electronics Forum | Mon Dec 20 07:09:03 EST 1999 | Christopher Lampron
Ron, The simplest way to process fexible PCB's that I have found is to use a process carrier fixture. There are companies that manufacture process carriers that are capable of holding flex through stencil, placement and reflow. The carriers are capab
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