Electronics Forum | Mon Jul 31 12:04:42 EDT 2023 | spoiltforchoice
You could spend 30 mins inspecting a modestly complex board manually using a magnifier/scope and still miss things. Humans get distracted, bored and tired. It is also difficult or impossible to visually inspect some faults like mild tombstones or qu
Electronics Forum | Tue May 01 12:16:25 EDT 2001 | kaoni
I really appreciate your advice. Dave did not offer much in the way of real advice, his response was mostly diatribe. I am looking at visual inspection at this time as AOI might be overkill in my case. I believe that it, in combination with the machi
Electronics Forum | Tue Dec 07 13:40:25 EST 1999 | Tim
The company I represent provides electronic manufacturing services. Some of my customers ask that we ship their boards "un-tested". By un-tested I mean we build them, visually inspect them and out they go. I find that on un-tested boards, it's not
Electronics Forum | Mon Jun 27 14:20:57 EDT 2005 | Bob R.
If you visually inspect the solder joints of the first dozen or so boards with the Pb free parts and you're meeting workmanship standards then I wouldn't worry about it. When we started getting the first barrage of Pb free parts a couple years ago w
Electronics Forum | Fri Dec 17 16:07:07 EST 1999 | Alex B
Hi, C.K. Let's assume that your stencil's thickness is in a range 4-6 mil or by other words the height of the solder paste on a pads is the same (close enough to reality) Therefore, for pad's width more than 20 mils(as well as pitch between pads) th
Electronics Forum | Fri Jul 16 05:24:40 EDT 1999 | Chris May
| I'm looking into vision inspection equipment to automatically inspect SMD placement and solder joint quality. Does anyone have any recommendations or know of any commonly used equipment? Do other manufacturers use vision systems at their inspecti
Electronics Forum | Tue Jun 16 15:10:27 EDT 1998 | Bob Willis
Simple x-ray inspection works well have a word with those nice people at Nicolet or Glenbrook. One of them was featured on my x-ray training video for BGA. A procedure for inspection criteria is on my web site if it is of use. | | How do I mechanical
Electronics Forum | Fri Mar 30 07:24:43 EST 2001 | pteerink
Have you had bad experiences? We have a paste checker on line, and all components are verified at receiving and again when loaded on the machines. The purpose of AOI ( for us anyway ) is to reduce the time spent after reflow visually checking the b
Electronics Forum | Fri May 27 17:21:35 EDT 2005 | mrclean
Dear SM Rookies, Another acceptable test method is visual inspection. IPC-A-610 details what to look for with different contaminants, providing magnified pictures of the possible visual residues. With an existing cleaning process, magnification
Electronics Forum | Thu Feb 16 12:16:57 EST 2012 | swarnergictg
No-one should be accepting parts based solely on the presence of a C of C - from an independent or even an authorized distributor. You should have a QC plan in place that includes comprehensive visual inspection, microscope, x-ray, XRF, decapsulation
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