APPLIED SCIENCE & TECHNOLOGY INC

Q: Sep 30 2000

FY: Jul 1 2000

FY: Jul 1 2000

Q: Mar 25 2000

Q: Dec 25 1999

Q: Dec 25 1999

Q: Sep 25 1999

Q: Sep 25 1999

FY: Jun 26 1999

Q: Mar 27 1999

Q: Dec 26 1998

Q: Sep 26 1998

Q: Sep 26 1998

FY: Jun 27 1998

FY: Jun 27 1998

Q: Mar 28 1998

Q: Dec 27 1997

Q: Dec 27 1997

Q: Sep 27 1997

FY: Jun 28 1997

5,7

5,7

5,7

5,7

5,7

7

2,7

Current report pursuant to Section 13 or 15(d)

Certification of termination of registration of a class of securities (Section 12(g))

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

No description available

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

No description available

Preliminary Proxy Statement

Definitive Proxy Statement

PRINCIPAL LIFE INSURANCE CO

HLM MANAGEMENT CO INC

HANCOCK JOHN FINANCIAL SERVICES INC

MKS INSTRUMENTS INC

POST RICHARD S

HLM MANAGEMENT CO INC

KOPP INVESTMENT ADVISORS INC

KOPP INVESTMENT ADVISORS INC

BJURMAN GEORGE D & ASSOCIATES /ADV

POST RICHARD S

SMITH DONALD K

KOPP INVESTMENT ADVISORS INC

KOPP INVESTMENT ADVISORS INC

BJURMAN GEORGE D & ASSOCIATES /ADV

TARRH JOHN M

POST RICHARD S

SMITH DONALD K

KOPP INVESTMENT ADVISORS INC

POST RICHARD S

SMITH DONALD K