Siemens 0402 placement

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Does anyone have any Siemens placement process optimization ... - Oct 29, 2003 by swagner

It's been a while since we placed a lot of 0402s, and I'm a ... - Oct 29, 2003 by Stockley

Brian- I think you are correct. To place 0402 components Si... - Oct 31, 2003 by CAL

Absolutely, 0402�s are no problem and should not require any... - Oct 31, 2003 by Stefan Witte

swagner

#26200

Siemens 0402 placement | 29 October, 2003

Does anyone have any Siemens placement process optimization for picking and placing 0402's, especially the resistors. Any response is greatly appreciated.

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Stockley

#26201

Siemens 0402 placement | 29 October, 2003

It's been a while since we placed a lot of 0402s, and I'm a bit out in the woods anyway so you ought to log on to http://www.siplace.com and get yourself a username and pasword so you'll have access to their DMS (documents system). I just did a quick search and found a couple of documents about placing 0402s. If I recall the key thing that will save yourself a bunch of heartache is to use ceramic 701/901 or 725/925 nozzles and to use your best S type feeders with the little support thingies under the pick points. You'll find all sorts of info about having the cameras check the nozzles for contamination etc but I think a lot of that stuff is overkill.

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CAL

#26222

Siemens 0402 placement | 31 October, 2003

Brian- I think you are correct. To place 0402 components Siemens usess a "Shim" under the carrier tape. 0402 components can be used with a standard 8mm feeder with the shim

Cal

Also, Steffan still works on a fair amount of Siemens products and checks SMTnet often...he will post soon

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Stefan Witte

#26225

Siemens 0402 placement | 31 October, 2003

Absolutely, 0402�s are no problem and should not require any special modifications. However, you will find, that not all 0402�s are the same. I have users, who created 5 different GF-packages with different dimensions and light contrast. With small components such as 0402�s and smaller, you may want to look for feeder modification on the �03 series with the drawer. The drawer supposed to collect the components, which may fall into the gear upon component refill.

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