Is there any set of industry benchmarks (numeric targets) for the DPMO
metric as derived from the IPC prescribed calculations (IPC-9261 and IPC-
7912)?  Most companies that use DPMO's set some standard targets, but has
there been any industry research as to what current best-practice targets
might be?  I'm intersted in DPMO targets for SMT placement, reflow, PTH
placement (auto and manual), wave solder, and manual solder processes.

Sure would appreciate some guidance.  Thanks.

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