Electronics Forum | Fri May 26 14:03:52 EDT 2000 | GP
I have a problem on fine pitch SMT connector reflow. The board size is 18" x 12" with 8 layers FR4 material and emersion gold finishing. All the other components include 0603 on the board are reflow very well, except 20 mil pitch SMT connectors. The
Electronics Forum | Mon Oct 29 19:48:03 EST 2001 | davef
Sounds like the connector is not solderable. * Do they take solder when hand soldering? * Do they take solder when using a hotter flux than you normally use? * What flux are you using? * What are the materials used in fabricating these connector le
Electronics Forum | Mon Oct 29 16:34:02 EST 2001 | patcope1
I have a custom connector that tends to lift during reflow. The PCB retention tabs and pins are lifting off of the pads on the board and the solder is forming underneath the pads, with no heel or toe filet. Is there anyone out there that can help if
Electronics Forum | Sat Oct 28 10:13:27 EDT 2000 | KF Lok
1) Try to keep lead as short as possible. 2) The long side of the connector in the direction of conveyor. 3) Use pallet, design such that the connector is 45 degree to the wave.( or conveyor). May not remove all shorts but reduce to one area i.e. th
Electronics Forum | Thu Nov 08 13:12:02 EST 2007 | russ
Annular rings are too big, it is acceptable to have shorts on the common conductors. I would be willing to say the "other" supplier may have modified the artwork as well. Good fluxing, preheat and proper immersion depth are key to eliminating short
Electronics Forum | Mon Nov 05 13:46:14 EST 2007 | ck_the_flip
That's where this website falls short. Sorry to b*tch, but there's lots of people who post here whose primary language is NOT english, and you know what they say... "a picture is worth a thousand words." Original Poster guy...try "Image Shack" to s
Electronics Forum | Thu Nov 08 09:51:09 EST 2007 | rgduval
Where are the shorts occurring on the 96 pin connector? Are they consistently in the same areas? It looks as though there are a number of pins connected by traces on the board, and/or the ground plane. This would cause a lot of repeatable shorts i
Electronics Forum | Fri Nov 09 07:13:20 EST 2007 | hussman
You're joking rite? I mean the pitch between these two connectors is night and day. Of course you will get shorts on the 96 pin connector because your leads are right on top of each other. Now, what to do about it: You took a picture of the top o
Electronics Forum | Thu Nov 08 08:44:22 EST 2007 | aj
Hi, I have just taken a look at the Connector Images. Is there a difference in pitch between both connectors ? From the photo it looks like the Annular Rings are oversized on Image #1 especially around the centre area ( this might be the image ).
Electronics Forum | Mon Nov 05 00:51:58 EST 2007 | omidjuve
We have a problem with soldering of a 96 pin header connector(9001-11961c00l1a from kingmate) we use 3 different wave soldering but in all of the machines we have many short circuit between the pins . the wave soldering machines that we use is fr
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