Shipley 1805 and developer 351

John Shott shott at
Tue Apr 13 04:13:43 PDT 2004

Lan and specmat:
It appears that developer 351 is a sodium hydroxide based developer ... I
thought that virtually all of our other developers were based on TMAH and
that we had avoided the use of the mobile metal ion based developers
containing NaOH or KOH.  Am I hopelessly out of date on this score?

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