Problem evalign SNF 2007-07-03 15:27:38: Exposure times drifting ihgher

[jparker at snf.stanford.edu]

3612 1 um resist now needs 1.2s or greater exposure to clear (hard contact).
3612 1.6 um resist now needs 1.7s or greater exposure to clear (hard contact).
Respective values were 1.0s and 1.5s immediately after a new lamp was last installed.