Electronics Forum | Mon Dec 06 00:22:41 EST 1999 | Greg H
Hi All, I have this problem sorting out the percentage of allowance that we need (per component) for our SMT machine attrition rate. When you say 1%. Say I have a PCB with 3 types of SMD components, type X is using 30 components, type Y is using 5
Electronics Forum | Thu Nov 11 11:33:30 EST 1999 | Brian E. Steelglove
Charley, I dont know what you define as durable but the one thing that I know about the QP 242 made by Fuji is that its slow and a very clumsy machine. The QP 242 is what Fuji calls there modular concept machine. I dont know about you but when I hea
Electronics Forum | Thu Jul 15 16:59:57 EDT 1999 | Glenn Robertson
| I'm designing a board where the parts will only fit if I do one of the following: | | 1. Put BGAs on both sides | | 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA pa
Electronics Forum | Wed May 12 23:33:04 EDT 1999 | Matt
WARNING: This is a plug. I have read post on this site where the question is raised: "My machine can do 80 units per hour, but I am only getting 35 - WHY?" Well I have written w95/database code that reads FUJI output files (CPII,CPII,IP2 etc) and d
Electronics Forum | Fri Oct 16 07:54:55 EDT 1998 | Mike Demos
We have just recently started using the Overall Equipment Effectiveness (OEE) metric on our SMT lines. This measurement is the "equivalent percentage of time the equipment is being used to produce saleable product at the maximum machine rate." The
Electronics Forum | Fri Oct 16 13:35:39 EDT 1998 | Steve Herring
| We have just recently started using the Overall Equipment Effectiveness (OEE) metric on our SMT lines. This measurement is the "equivalent percentage of time the equipment is being used to produce saleable product at the maximum machine rate." Th
Electronics Forum | Thu Aug 06 13:02:11 EDT 1998 | Brian Stumm
Tombstoning is often caused by non-uniform heating. I suggest you check you profile to ensure you still have uniform heating and also check your rise and cool rates. If you have a convection oven I would look into the fan speeds or airflow rate throu
Electronics Forum | Mon Jul 27 13:54:25 EDT 1998 | Ted
| | | | I was wondering how successful industry has been in quantifying relationships between defects rates of particular solder problems (like bridging, opens,..) and PCA design parameters (like spacing, part orientation, pad dimensions, ...). For
Electronics Forum | Fri Nov 16 14:10:01 EST 2001 | mparker
I have oftened wondered how this industry lets its workers get away from being responsible. The best way I know of is to have them buy their own tools. Just take a look at the trades - carpenters, plumbers, welders, sheet metal men, body repair, mech
Electronics Forum | Mon Oct 21 18:15:13 EDT 2002 | cnoonan
Fuji: Wonderful machine, very robust, Hardware second to none. Lacking on software Universal: Love the GSM, great platform. Sanyo HSP�s are ok, like the new 4796, not sure about the 4797 yet, have not had it long enough to give good data. Sieme