Electronics Forum | Wed Nov 29 22:09:57 EST 2006 | davef
attrition
Electronics Forum | Tue Feb 06 18:12:46 EST 2001 | davef
Pete makes great points. Taking a slightly different angle, use your placement equipment's software to help you. It keeps track of the number of picks and attempts for each location. Study these numbers for a week and determine the capability of p
Electronics Forum | Mon Dec 23 20:14:24 EST 2002 | vinhmach1
Hi, You can't void of loose parts. But can reduce. You can ask your Lead operator or the the person in charge for that individual line to keep track on the hourly monitor. If they tracking the number of PCB went thru the machine (getting the coun
Electronics Forum | Thu Nov 10 23:43:33 EST 2022 | sarason
Are you using the correct nozzle for 0402? Cant remember the number OTTOMH but 501 rings a bell. somewhere I have the table, it is in the Juki service manual IIRC. This would explain placing all others okay but 0402 is not very good , Senoirtech is c
Electronics Forum | Tue Nov 08 22:49:41 EST 2022 | jojoled
Hi, I need help with placing 0402 resistors 90% of them are picked correctly, but are not placed(thrown away) giving me error : LASER retry over. Slightly higher varistors in same package have slightly better placing rate, about 50%, but still not su
Electronics Forum | Tue Apr 06 07:17:30 EDT 2004 | mzaboogie
Good Morning All, We are in the process of setting new attrition rates on SMT components. Initially, we will be setting a rate accross the board for SMT components. We realize that a per part number system is far more accurate but at this time, some
Electronics Forum | Tue Apr 06 14:44:50 EDT 2004 | davef
Chris Search the SMTnet Archives to get started. There's a fair amount of background there.
Electronics Forum | Mon Oct 24 07:15:53 EDT 2022 | umar
Hi All SMT Expert and Members, Any one can help or share how to set the attrition formula at SMT machine pick and place process, FYI, I had a product with high mix low volume with qty running per model is less than 50 pcs, the pcb and place machi
Electronics Forum | Tue Apr 03 01:17:57 EDT 2007 | Haris
Dear all, One of the major reason is that some components have curved shape terminations and thats why their attrition rates are high. So CORRECT THEIR VISION FILES OR IF PROBLEM REMAINS THE SAME THEN INCREASE THE TOLERANCE OF THAT COMPONENT VISION
Electronics Forum | Mon Oct 24 11:04:58 EDT 2022 | richardcargill
The yamaha feeders need leader tape to function - so if you're using cut reel components you'll lose 3 or 4 just on set up alone. Run-time attrition is harder to help with as machine setup and calibration, condition of nozzles/feeders, ability of ope
