Electronics Forum | Wed Nov 24 07:02:15 EST 1999 | JAX
Larry, Carl's right about vision 254 and 255 but I believe CP4's can be set up to check for a part on the nozzle,(parts check sensor)like any other CP. This could be activated to make sure parts are being placed. Then again CP4's might not ha
Electronics Forum | Mon Nov 22 10:15:50 EST 1999 | Boca
Will, Wolfgang and Deon are exactly right on target. You just have to watch which side is built first. I began doing double sided reflow like this in the mid '80's, it works great. I used FR4/ GT material to hold the PCB up off of the conveyor,
Electronics Forum | Mon Nov 08 14:11:41 EST 1999 | Aaron Unterborn
Susan- The Rochester Institute of Technology (RIT) has a fully functional SMT assembly line, less AOI. The web page I attached has a photograph of the line as well as a short description for each piece of equipment. If you would like more information
Electronics Forum | Mon Dec 06 21:57:34 EST 1999 | cklau
Hi folks; I had this funny idea that SMTnet can provide some new feature's like a freehand drawing utilities that way we can draw some technical illustration drawing in our text message area or cut and paste from our windows clipboards to our existi
Electronics Forum | Thu Oct 28 09:25:35 EDT 1999 | Dave F
Chris: Typical non-wetting causes are: * Poorly controlled soldering process * Incorrect material * Surface contamination * Insufficient preheat * Misapplied solder mask * Shadowing Without intending to insult you, all of the causes of non-w
Electronics Forum | Mon Oct 25 03:43:26 EDT 1999 | Joe
Hello, Acceptance Quality Levels vary from company to company and product to product. I would like to know what AQL's are being used in the different markets, (military, telecommunucations etc.). What is the standard level used? What
Electronics Forum | Fri Oct 22 23:45:37 EDT 1999 | Jim Cristiano
Hi, I'm looking for vendors that manufacture connector pins that would solder onto the edge of a small SMD pcb so that I can mount it as a SIP onto a larger PCB. Better yet, are there small diameter pins that can be soldered into thru-holes so the SM
Electronics Forum | Wed Oct 20 10:41:22 EDT 1999 | Eric Lerz
Our company (assembler and user) has experienced some board problems relating to warpage and solderability. The manner in which they are packaged by our fabricators and stored in our stock prior to assembly has been questioned (as one of many factor
Electronics Forum | Mon Oct 18 11:42:04 EDT 1999 | Dave F
Each month: 1 Follow your regimen of inspection and replacement of pathetic looking fingers 2 Routinely replace every Xth finger each month. (Or something like that) Select the "X" based on your local conditions. Obviously, the replacements shoul
Electronics Forum | Thu Oct 14 04:28:29 EDT 1999 | Grace Chua
Hi there, I have quite a number of problematic bd due to warpage problem. I would like to know the method on how to measure PCB warpage, thus to decide on the dispositon of these boards. Another question, can these warp bd be rework/fix. Is there
