Electronics Forum | Thu Aug 26 13:51:57 EDT 2004 | Dreamsniper
I've done a few capacity and capability studies and bought new SMT equipment (Pick and Place) based on the above required capacity. I did not rely on equipment manufacturer's tact time. I used only 60% of their tact time as achievable in real manufac
Electronics Forum | Wed Sep 08 20:48:36 EDT 2004 | peter016
Hi Rob, I guess the ratio between chipmounter and GSM is very much depending on the chip to ICs ratio. This is product dependent. We use 2 HS50 to 2 GSMII, 5 S20 to 2 GSMII, 3 Sanyos to 2 GSMII, and 2 CP6 to 2 GSMII. Are these ideal ratios ? Lean Ma
Electronics Forum | Thu Aug 26 13:31:05 EDT 2004 | Dreamsniper
Hi, I always caught our touch-up operators cleaning touched up boards improperly. Either by just wiping with lint free clothe the solder joints of the components after touch up or by just going behind the aqeuous cleaner and scooping some water then
Electronics Forum | Thu Aug 26 21:54:57 EDT 2004 | KEN
I ran into this about 2 years ago. The Rework Operators (all 3 shifts) would rework a device, rince the board with tap water (yep, 50k / Cm^3) from a nearby sink, then send the PCB to test (which is really ironic as they had to walk past the DI wash
Electronics Forum | Mon Aug 30 22:48:36 EDT 2004 | davef
Chapter 1 of Handbook of Machine Soldering: SMT and TH [Woodgate, RW; John Wiley & Sons, Inc.; 3e; 1996; ISBN 0-471-13904-1] is titled "A Brief Histroy of Machine Soldering". While a tantilizing title from the perspective of your project, it simply
Electronics Forum | Thu Sep 09 11:30:03 EDT 2004 | Tim Lawrence
Hi I came across this article while writing a paper. I don't know if it's the first, but it is early wave soldering: W L Oates, "Automatic Soldering Machines for Printed Circuit Board Assemblies", IRE National Convesntion Record, Vol. 6, No. 6, pa
Electronics Forum | Thu Sep 02 05:31:34 EDT 2004 | Simon UK
Hi All there ! I'm looking on advice on how to > get on with programming of Flextronics > HyperVision S4 test programms. The book they > provided is ending on seting up feducials, and > that's all . > > Best regards, Muad'Dim Well i can only s
Electronics Forum | Mon Aug 30 23:27:16 EDT 2004 | KEN
I worked for a US leading edge technology company to develop smt and wave solder processes to be transfered to their Tiawan CM. Its not 400K units per year, but800K per month! And yes, your right, no one wants to give away the magic lead free proce
Electronics Forum | Thu Sep 02 10:43:02 EDT 2004 | Frank R.
Thanks Russ, Concerning PCB, I will consider positive and negative informations for all material exept OSP. I work with 350 persons in production and if the final result of the product is different depending of the person who andle it, I can't use t
Electronics Forum | Fri Sep 03 12:36:27 EDT 2004 | Frank R.
That's what I have ... two 5 zone reflow. A representative from AIM told me that 7 zone reflow is required with PbFree. It's good to know that it work fine with a 5 zones. Florida cirtech is the company who told me that SN100C do not damage your w
