Electronics Forum | Fri May 22 07:59:14 EDT 1998 | Jerry
We are currently comparing the Fuji QP2 machine to the Universal GSM. The primary use will be for QFP's down to .4 mm pitch and for 300+I/O BGAs. My initial input has been that you spend alot of time tweeking PD's on the QP because the vision syste
Electronics Forum | Thu May 28 18:16:40 EDT 1998 | Ian Bates
| We are currently comparing the Fuji QP2 machine to the Universal GSM. The primary use will be for QFP's down to .4 mm pitch and for 300+I/O BGAs. My initial input has been that you spend alot of time tweeking PD's on the QP because the vision sys
Electronics Forum | Sun Apr 19 13:52:45 EDT 1998 | D.Lange
| We have to mount our SMD devices 0.1 to 0.4 mm off the pcb | PCb substrate to compensate for thermal stressing in a | Space enviroment. Has any one any ideas or contacts for | dissolvable pads. this only applies to leadless components Robert, PPI
Electronics Forum | Sun Apr 19 13:50:41 EDT 1998 | D.Lange
| We have to mount our SMD devices 0.1 to 0.4 mm off the pcb | PCb substrate to compensate for thermal stressing in a | Space enviroment. Has any one any ideas or contacts for | dissolvable pads. this only applies to leadless components Robert, PPI
Electronics Forum | Fri Sep 27 17:42:35 EDT 2002 | russ
i don't know of any "handy dandy" but something I use is tape width minus 4mm for the max component size that can be fit into tape widths of up to 32mm. 32mm and larger have holes on both sides which would then be tape width minus 7mm. I have never
Electronics Forum | Wed Apr 09 15:05:45 EDT 2003 | russ
Probably of no help but here it is anyway This is a tuff one. Attrition is due to many factors. You have machine rejects (visual fail, no pick), feeder set-up loss each time a reel is removed you lose X number of parts depending on feeder design (w
Electronics Forum | Mon Apr 19 15:27:05 EDT 2004 | pjc
The MicroFlex is not really new. Its the UltraPrint 100 re-engineered and improved. UltraPrint 100 / SMTech 100 has been around for many years. I don't believe the DEK 248 offers a Stencil Wiper option. I worked on MicroFlex machines. Vision system i
Electronics Forum | Thu Apr 15 17:06:08 EDT 2004 | russ
What are your temps at the locations that you are having trouble with. We cannot tell anything by the zone settings of an oven. We need max temp, how long above liquidous etc.. a lot of times this symptom is due to too long of a soak at too high o
Electronics Forum | Mon Jan 24 04:26:32 EST 2005 | Hannu
Morning all, Has anybody done any pin in paste job with a dispenser? I read somewhere that the needle i.d. should be slightly larger than the hole diameter, but with holes of 1.4 mm I would have to work with a very large needle indeed. How does past
Electronics Forum | Wed Feb 02 08:51:25 EST 2005 | Dougs
we have a capacitor cracking on one of our boards, there are four of the same cap on the board and only one cracks, we are seeing about 6% of the component cracking. it's not near the edges of the board and he board is 2.4mm thick so i dont think it
