ITEM 5.02 DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS.

(e) On September 1, 2009, Zygo Corporation ("ZYGO") and John M. Stack, President of ZYGO's Optical Systems Division, amended Mr. Stack's employment agreement with ZYGO, originally dated November 20, 2006. The amendment to Mr. Stack's employment agreement reflects that he shall be entitled to receive his base salary at the then-current rate for a period of twelve (12) months following the date that his employment is terminated by ZYGO for any reason other than for justifiable cause, disability or death.

The amendment to the employment agreement dated as of September 1, 2009 between Mr. Stack and ZYGO is attached as Exhibit 99.1 hereto.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

(d) Exhibits

99.1 The amendment to the employment agreement, dated as of September 1, 2009, between John M. Stack and Zygo Corporation.

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