Electronics Forum | Thu Apr 29 17:52:33 EDT 2021 | mike_infl
We have an assembly which we are trying to machine pick and place a Mil-Max pin that is .020 dia placed in a .026 hole. The board is .1125 thick. We have to place 106 of these pins. Without going into the challenge of getting proper hole-fill to me
Electronics Forum | Wed Mar 21 20:40:28 EST 2001 | dblsixes
We are building a monster ... Dimensions are 10" x 7" ... 12 layers ... A Logic Assembly with a Power Supply all rolled into one ... The Power Supply is in one section of the board, the logic in the other section ... The Power Supply obviously has a
Electronics Forum | Sat Oct 26 10:12:32 EDT 2024 | madisreivik
Hello ! Please offer some clever solution for the following problem 2 sided assembly. The side which must be assembled first has 2 SMD RJ45 connectors. They have plastic location pins. Which protrude tru the board, about 0.4mm So, when I want to a
Electronics Forum | Tue Oct 29 14:11:52 EDT 2024 | spoiltforchoice
The "clever" solution is to revisit the design. Move things, choose a connector with SMT tabs and no locating lugs. File this mistake away under "oops". You should also revisit the datasheets for your parts. Most components should be fine to reflow
Electronics Forum | Sun Oct 27 14:01:48 EDT 2024 | kirill
Why would you assemble first side with TH component? Can't you start from the second side?
Electronics Forum | Sun Oct 27 09:36:38 EDT 2024 | madisreivik
Yes, thats the most obvious solution :) But its a quite specific and densely packed socket, so my hopes are not that high :)
Electronics Forum | Sun Oct 27 16:47:06 EDT 2024 | madisreivik
I got very few components on the first side and all these are not heat sensitive. On the other side I got 5 times more components, including electrolytic caps and micromodules, which love the lower temp of LMPA pasta and also, they would enjoy more i
Electronics Forum | Thu Oct 21 06:26:50 EDT 2004 | dennispoquiz
Right. Fiducial comes with the CAD data or the gerber files. If it doesnt, and you need to create fiducial coordinates, you may use a digitizer or a caliper and make use of the reference pin as the origin. Now if the fiducial camera focus is way out,
Electronics Forum | Thu Mar 04 10:20:30 EST 2004 | Ken
If an OEM and room is available on the PCB....have pin location aids silk screened on the boards. Groups of 10 are typical. might look like 1.........10.........20.........30 continue this around the device. Otherwise, ???
Electronics Forum | Mon Feb 26 19:56:24 EST 2001 | davef
SMTnet Archives used to have copious amounts of information on a pin-in-hole [e.g., pin-in-paste, paste-in-hole, etc] reflow process, but much of that appears lost with the conversion to the new and improved site format. In getting started, check:
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