Electronics Forum | Wed Nov 17 08:20:47 EST 2004 | Chunks
Pros are no need to clean after reflow. No need to buy a cleaner or worry about "wet" parts afterwards when you're trying to test your unit. Cons are that most leave a bit of a residue behind. It's harmless but may drive your bed-of-nails tester a
Electronics Forum | Thu Jan 06 06:15:49 EST 2005 | mattkehoe
We need some opinions about a situation that is causing problems in our process. The pcb's in question are .125 thick with a HASL finish. The boards are coming in with a large amount of solder trapped inside the via holes. Sometimes this solder is ac
Electronics Forum | Thu Jan 06 08:03:47 EST 2005 | davef
On solder in vias: It looks like the via are not solder masked well and pick-up solder either: * Solder coating ... OR * During leveling It's possible that the design specifies openings in the solder mask for these via. On solder in the unsupporte
Electronics Forum | Wed Jan 12 12:06:55 EST 2005 | Grant
Hi, The MYDATA is a very flexible machine, however it's slow as a chip shooter, and really needs Myspeed to work to get as much speed as possible. It's also wasteful to get chip placement speed because you need to repeat feeders of the same componen
Electronics Forum | Wed Jan 12 14:47:09 EST 2005 | gregp
This will always be the case with in-line spindle machines that rate their cph based on unreal conditions. Flexible placement machines with different head designs will perform better (closer to advertised) and are truley more flexible because you do
Electronics Forum | Thu Jan 13 23:31:19 EST 2005 | KEN
Many of the Engineers from Dynapert / Precima went to Philips EMT. You can see many simlarities in feeder and nozzle designs. They (Philips) have a signifficant history in the P&P arena. I have 3 GEM emeralds from 1998 that continue to calibrate at
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 | Thu Feb 10 16:45:36 EST 2005 | pjc
It all depends on what type of board you need to solder. If your boards are small in size and low thermal mass and your conveyor speed requirments are normal, then I'd say the OmniFlo 7 will do the job. It has a max zone temp setting of 280C. The cur
Electronics Forum | Mon Feb 21 18:13:23 EST 2005 | gpaelmo
As davef states above, you would like to have flat surfaces below 25 mil. We are a contract manufacturer also and we've done thousands of 15 mil QFP's with HASL finish with no problems. Your success will depend on quality of PCB supplier providing th
Electronics Forum | Wed Mar 09 10:20:02 EST 2005 | Keith
Hello Deyo, With regards to schematics for these boards, SigmaPrint Technologies Ltd as the authorized provider of spare parts for the SMTech range of Equipment have these drawings on file along with all other SMTech manufacturing drawings. Sigmapr
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