Electronics Forum | Mon Nov 04 05:22:14 EST 2013 | dselettronic
Good morning everyone I have read postings about Mirtec AOI, but they're not recent, so I'd like to know something about your experiences with Mirtec Benchtop MV-3. Our inspection department has now 3 MV-2HTL and we tried to make them as useful as po
Electronics Forum | Sun Nov 10 16:07:31 EST 2013 | davef
First, require use of the IPC-7351B Standard as the sole basis for laying-out pads on circuit boards. Second, if someone wants to use a pad design that either: * Wasn't covered in IPC-7351B ... OR * Was for a component that was in the standard but
Electronics Forum | Tue Nov 05 09:57:45 EST 2013 | cuperpeter
Hello All, We have a problem with dewetting of solder paste. Problem is most visible on the pads without components (see attached pictures) and occurs randomly, 20% of PCB's. Pcb supplier sent us a cross-section of pads with thickness of Cu, Ni and
Electronics Forum | Wed Nov 06 10:03:59 EST 2013 | rgduval
Hi, Peter, I'm not an authority on surface finish thickness, and it's effect on reflowing, so, I can't advise on that front. If the boards are a week old, and ENIG, I would not suspect surface contamination. It's always a consideration, of course,
Electronics Forum | Fri Jan 31 09:38:58 EST 2014 | pavel_murtishev
Hello, I am trying to estimate hole filling after PiH process using phoenix x|aminer X-Ray Machine. The question is how to select correct inspection voltage? Inspecting at 60kV 40uA all PiH holes appear to be completely black, that means completely
Electronics Forum | Thu Feb 13 19:08:31 EST 2014 | darby
Have to agree with Sr Tech and Spoilt - you'd have to really mistreat your paste these days for it to be the root cause. However, try another paste to eliminate that; making sure you abide by the suppliers specs. Pad design, stencil design,(includin
Electronics Forum | Mon Feb 24 12:57:33 EST 2014 | mi
Import->Part->Library Import PD wizard Menu->Import->to Job->BOM (adds P/N only to assembly but does not go into Parts Library) etc. Among all these tools, they each prompt for different files with different name & extensions & format. I've trie
Electronics Forum | Thu Mar 13 14:12:31 EDT 2014 | davef
You're creating a new alloy on the surface of your board. The alloy will have a melting point determined by the constituent metals of the alloy. Your alloy consists of: * Lead-free HASL solderability protection on the board * Lead-free solder paste *
Electronics Forum | Thu Mar 20 15:57:57 EDT 2014 | edwaterfall01
The numeric display number should be higher but only when all 7 spindles are moved down slightly from the full up position. The 7 spindles retract up to the Stop Bar. Each spindle assembly has a tapered hole thru it. This hole is in the block with t
Electronics Forum | Sun Mar 23 21:34:38 EDT 2014 | jmelson
I have a 3 head CSM84 without vision. I have set up head 3 without chuck jaws to use with the mechanical alignment station. When I got the machine all the M.A. offsets were zero. Over time, I have gotten them closer, but I really don't understand
