Electronics Forum | Wed Mar 08 07:24:36 EST 2000 | Wayne Bracy
Scott Wish we could all quite showing our age and just enjoy the SMTNet. Most of us enjoy reading the responses and at times responding to issues that are important to all of us. Technical information is so important to all of us. Most of the Old
Electronics Forum | Thu Feb 17 22:23:15 EST 2000 | Dave F
Richard: As Roni said, most of the better profiler companies have the capabilties you seek Datapaq,187 BallardvilleSt,Wilmington, MA 01887 508.988.9000 Michael Dougherty Electronic Controls Design, 13626 SFreeman Rd, MulinoOR 97042 503.829.9108 K
Electronics Forum | Wed Feb 23 20:29:43 EST 2000 | Rex B
ECD is working on some tools in the area of determining the Ideal or most Robust Profile, for a given paste, oven configuration and conveyor speed. Translation of this "most robust profile" into actual oven setting requires more knowledge about the
Electronics Forum | Mon Feb 21 11:22:21 EST 2000 | K. Ckak
Hi Kurt, I agree with Dave F. I had exact same problem with PBGA placement. We requested our PCB vendor to plug/tent via (button printing) after HASL with SR1000 which worked well in the long run. There are couple of failure modes associated wit
Electronics Forum | Tue Feb 15 19:54:48 EST 2000 | Clarissa Ortner
I am supposed to heatsink a Temp sensor with leads .9-1.1mm(.035--43"). I have found on our engineering units that the smallest heat sink I have found commercially is still too heavy for the leads and unless the operators use exxxxtreme care the wei
Electronics Forum | Tue Feb 15 18:03:56 EST 2000 | JAX
Dane, I'll give you a quick guess before I log off; The reason you are seeing problems with dome shaped fiducials is probably because the machines in question do not use grey scale recognition. They asign either black or white( not 256 shades of grey
Electronics Forum | Wed Feb 16 05:09:30 EST 2000 | Dean
You might try a no HASL spec on your fids...but shelf life may hamper copper quality. Not a pleasant situation...opertors tend to polish the fids with erasers to compensate but this leads to eraser "bits" in your equipment and your solder! Maby op
Electronics Forum | Wed Feb 16 05:58:12 EST 2000 | Wolfgang Busko
Hi Dane, if with "dome" is meant the irregularity of a HASL finish than we had a lot of problems especially like Dean mentioned with finepitch parts and circular fids. It ended up with cleaning the fids with erasers before using the boards. Later we
Electronics Forum | Tue Feb 15 14:35:41 EST 2000 | Balas
hi I am designing a test vehicle with a range of components on it(pbga, cbga,fc, mbga, and qfps). My concern is that I would like to use a single stencil for solder deposition and not a stepped stencil. That would require me to have aperture design a
Electronics Forum | Tue Feb 15 14:25:08 EST 2000 | Sergey
Dear Sirs Good business day! I need the following feeders for CSM60 machine: - Stick feeders: 1. 20 mm x 1 2. 13 mm x 3 3. 8mm x 7 - Tape feeders: 1. 16 mm, 9" x 7 you seems to be have not this 2. 24 mm, 9" x 3 3. 32mm, 9" x 1 - Manual tray feeder
