Hi Robert,

Perhaps IPC-7912: Calculation of DPMO and Manufacturing Indices for Printed
Circuit Assemblies might help?

Also, I highly recommend the Ira Goldratt and Steve Fox books, "The Race"
and "The Goal". They aren't specific to SMT Assembly or Box Building but
very relevant to manufacturing.  More info @ http://www.goldratt.com/  A
synopsis - finding bottlenecks is easy - look for stalled work in progress
(WIP) or large amount of inventory at a specific operation.  By definition
there is one operation that limits the amount of product through the shop -
maximize it.

I'm curious has anybody implemented a DBR system?

Other possible sources of info http://www.circuitsassembly.com/ and
http://www.hdi-online.com/

Sounds like you want to do a flow analysis of your operation.

Hans

~~~~~~~~~~~~~~~~~~~
Hans M. Hinners
Materials Engineer (Process & Manufacturing)
Warner Robins Air Logistics Center
Avionics Production Division
Precision Attack/ Radar/Manufacturing Branch
Engineering Section
380 Second Street, Suite 104
Building: 640, Mail Stop: LYPME
Robins AFB, GA 31098-1638
Voice: (478) 926 - 1970 Fax: (478) 926 - 7164
mailto:[log in to unmask]
http://www.robins.af.mil



-----Original Message-----
From: Robert McCall [mailto:[log in to unmask]]
Sent: Monday, September 25, 2000 2:44 PM
To: [log in to unmask]
Subject: [TN] Performance data


Can anyone out there point me in the right direction to read-up on and learn
how to get the best PCB smt assembly production lines and box build line
cooking at the max. output. How to enhance line flow, resolve find bottle
necks, balance line elements,
find the time killers and any overall data that I might use to increases
production. (there seems to be to much hand work)

Most of what am looking for is general common sense, and normal PCB assembly
activities but measurements, standards and the like can get us started in
the right direction, at least knowing where we are and where we want to go.


Big time thanks!!!!!

Robert McCall
Sr. Industrial Project Manager
Philips Digital Networks
Philips Silicon Valley Center
1000 West Maude Ave.
Sunnyvale, CA   94085-2810
Office: 408-617-4715
Fax: 408-617-7717
Cell: 408-930-4724

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