Electronics Forum | Fri Nov 11 09:18:28 EST 2005 | chunks
EMI shields are no fun! Your process will depend on your design and condition of the shields. We always break the shields into their own process. Because the shields are never flat, screen printing paste and trying to reflow them only caused huge
Electronics Forum | Fri Nov 11 09:38:41 EST 2005 | Rob
Hi, There are 2 main steps to reducing EMI from a product. The first is to minimise it at source with smart design (keeping signal traces short, lots of decoupling etc). There should be design guides available from internet seach engines. Many ma
Electronics Forum | Mon Nov 14 11:57:36 EST 2005 | Carsten
Hi, my name is Carsten from Germany. My company is looking for a pre-owned SMT placement machine to replace our old Dynapert MPS111. We are producing a lot of different PCBs with many different parts on it, and only small series of 100 to 1k pieces.
Electronics Forum | Tue Nov 15 03:27:46 EST 2005 | Base
Hey Carsten, Couple of questions to get the picture clear about the type of machine you're looking for: - what's the most demanding package you'll be placing? (fine-pitch, BGA, large connectors, etc...) - how much feederbarspace do you hink you'll n
Electronics Forum | Wed Nov 16 06:02:23 EST 2005 | stefwitt
Are feeders included? Otherwise, the MS 102/132 sell even for lower prices here in US. Add shipping and training and you get to the same result. Juki, Contact and Quad may fall in the same price range, but spare parts and service tech availability wi
Electronics Forum | Tue Nov 15 16:57:22 EST 2005 | bk
If your problem is happening part way through the calibration the problem might be there is too much friction from your Y-wagon. Measure the friction on the Y-wagon using the service program if it fails or if it is near the max allowed try oiling up
Electronics Forum | Tue Nov 15 09:31:27 EST 2005 | arclightzero
I have been reading a good deal about IMC (purple plague in particular) in gold wire/aluminum pad wire bonds. My company uses ultrasonic wedge bonding, and for the most part all of our bonding is gold/gold, however we have one particulr part that has
Electronics Forum | Fri Nov 18 02:42:46 EST 2005 | vinitverma
Greg, I recently faced this problem at a customer though the machine was Topaz X but the problem was same. So I suggest you first check if the GOOD LED is ON on the Servo card down in the MCX box. Also check the same GOOD LED on the System board in
Electronics Forum | Wed Nov 16 12:22:43 EST 2005 | rlackey
CPH - 17000 to 40000 depending on compoent density & type. Typically 28K. 0603 rejection rate - negligible. Major breakdowns - none. However preventative maintenance is essential. There are 2 different types of shafts on machines, and some people
Electronics Forum | Wed Nov 16 10:56:43 EST 2005 | aj
The latest software packages and stopwatch will do the job but if your manager is anything like mine he wants to know straight away from the BOM. If you split the bom down between placement machines i.e. caps and resistors etc on chipshooter and ICs
