UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 3)
Micrion Corporation
(Name of Issuer)
Common Stock, no par value
(Title of Class of Securities)
59479P-10-2
(CUSIP Number)
*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect
to the subject class of securities, and for any subsequent
amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page
shall not be deemed to be "filed" for the purpose of
Section 18 of the Securities Exchange Act of 1934 ("Act") or
otherwise subject to the liabilities of that section of the
Act but shall be subject to all other provisions of the Act
(however, see the Notes).<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 2 of 27
1 Name Of Reporting Person H&Q VENTURES INTERNATIONAL C.V.
IRS Identification No. Of Above Person 98-0059340
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
Netherlands Antilles
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 3 of 27
1 Name Of Reporting Person H&Q VENTURES III
IRS Identification No. Of Above Person 94-2740985
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 4 of 27
1 Name Of Reporting Person H&Q VENTURES IV
IRS Identification No. Of Above Person 94-2940347
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 5 of 27
1 Name Of Reporting Person ANGLO-CONTINENTAL VENTURE INVESTORS
(BVI) LIMITED
IRS Identification No. Of Above Person 98-0105345
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
British Virgin Islands
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 6 of 27
1 Name Of Reporting Person H&Q ALLIANCE FUND
IRS Identification No. Of Above Person 94-2936823
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 7 of 27
1 Name Of Reporting Person HAMQUIST
IRS Identification No. Of Above Person 94-2800484
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 8 of 27
1 Name Of Reporting Person H&Q INVESTORS
IRS Identification No. Of Above Person 94-2917768
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 9 of 27
1 Name Of Reporting Person H&Q MICRION INVESTORS, L.P.
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 10 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST GUARANTY FINANCE, L.P.
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 11 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST GROUP LIMITED
PARTNERSHIP INTEREST LIQUIDATING TRUST
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person*
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 12 of 27
1 Name Of Reporting Person GUARANTY FINANCE MANAGEMENT CORP.
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 13 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST INVESTMENT PARTNERS
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 14 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST VENTURE PARTNERS
IRS Identification No. Of Above Person 94-2949080
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
PN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 15 of 27
1 Name Of Reporting Person H&Q MANAGEMENT CORPORATION
IRS Identification No. Of Above Person
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
-0- OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
-0-
9 Aggregate Amount Beneficially Owned By Each Reporting Person
-0-
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
0.0%
12 Type Of Reporting Person
CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 16 of 27
1 Name Of Reporting Person RVR SECURITIES CORP.
IRS Identification No. Of Above Person 94-3181298
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 17 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST CALIFORNIA
IRS Identification No. Of Above Person 94-2856927
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
California
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 18 of 27
1 Name Of Reporting Person HAMBRECHT & QUIST GROUP
IRS Identification No. Of Above Person 94-3246636
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
Delaware
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
HC, CO<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 19 of 27
1 Name Of Reporting Person WILLIAM R. HAMBRECHT
IRS Identification No. Of Above Person ###-##-####
2 Check The Appropriate Box If A Member Of A Group (a) [ ]
(b) [x]
3 SEC USE ONLY
4 Citizenship Or Place Of Organization
United States
5 Sole Voting Power
-0-
NUMBER OF
6 Shared Voting Power SHARES
BENEFICIALLY
384,739 OWNED BY EACH
REPORTING
7 Sole Dispositive Power PERSON WITH
-0-
8 Shared Dispositive Power
384,739
9 Aggregate Amount Beneficially Owned By Each Reporting Person
384,739
10 Check Box If The Aggregate Amount In Row (9) Excludes
Certain Shares* [ ]
11 Percent Of Class Represented By Amount In Row 9
9.4%
12 Type Of Reporting Person
IN<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 20 of 27
Item 1(a). Name of Issuer.
Micrion Corporation (the "Issuer").
Item 1(b). Address of Issuer's Principal Executive
Offices.
One Corporation Way, Peabody, MA 01960.
Item 2(a). Names of Persons Filing.
Reference is made to Item 1 of each of the cover
pages of this Amendment, which Items are incorporated by
reference herein.
Item 2(b). Address of Principal Business Office or, if
none, Residence.
The address of each reporting person is One Bush
Street, San Francisco, California 94104.
Item 2(c). Citizenship.
Reference is made to Item 4 of each of the cover
pages of this Amendment, which Items are incorporated by
reference herein.
Item 2(d). Title of Class of Securities.
Common Stock, no par value ("Common Stock").
Item 2(e). CUSIP Number.
59479P-10-2
Item 3. Type of Reporting Person.
Not applicable.
Item 4. Ownership.
Reference is hereby made to Items 5-9 and 11 of
each of the cover pages to this Amendment, which Items are
incorporated by reference herein. According to information
furnished to the reporting persons by the Issuer, there were
4,033,613 shares of Common Stock issued and outstanding as of
December 31, 1996. At December 31, 1996, the following
shares of Common Stock were held directly by the following
persons:<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 21 of 27
Common Stock
Person Directly Owned
H&Q Ventures International C.V. 109,631
H&Q Ventures III -0-
H&Q Ventures IV -0-
Anglo-Continental Venture
Investors (BVI) Limited 18
H&Q Alliance Fund -0-
Hamquist -0-
H&Q Investors -0-
H&Q Micrion Investors, L.P. -0-
H&Q Guaranty Finance, L.P. -0-
Hambrecht & Quist Group Limited
Partnership Interest Liquidating Trust 62,300
Hambrecht & Quist Investment Partners 7,353
Hambrecht & Quist Venture Partners 7,011
Hambrecht & Quist Group 99,889
William R. Hambrecht 31,870
_______
Subtotal 318,072
=======
In addition, RVR Securities Corp. has a warrant
that is currently exercisable to purchase 66,667 shares of
Common Stock.
Because voting and investment decisions concerning
the above securities may be made by or in conjunction with
Hambrecht & Quist Venture Partners, Hambrecht & Quist
California, Hambrecht & Quist Group and William R. Hambrecht,
each of the reporting persons may be deemed a member of a
group that shares voting and dispositive power over all of
the above securities. Although the reporting persons are
reporting such securities as if they were members of a group,
the filing of this Amendment shall not be construed as an
admission by any reporting person that it is a beneficial<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 22 of 27
owner of any securities other than those directly held by
such reporting person.
Under the definition of "beneficial ownership" in
Rule 13d-3 under the Securities Exchange Act of 1934, it is
also possible that the individual general partners,
directors, executive officers, members and/or managers of the
foregoing entities might be deemed the "beneficial owners" of
some or all of the securities to which this Amendment relates
in that they might be deemed to share the power to direct the
voting or disposition of such securities. Neither the filing
of this Amendment nor any of its contents shall be deemed to
constitute an admission that any of such individuals is, for
any purpose, the beneficial owner of any of the securities to
which this Amendment relates, and such beneficial ownership
is expressly disclaimed.
This Amendment does not include shares of Common
Stock, if any, held by Hambrecht & Quist LLC in its trading
account if it is a market maker in the Issuer's Common Stock.
Item 5. Ownership of Five Percent or Less of a Class.
Not applicable.
Item 6. Ownership of More Than Five Percent on Behalf of
Another Person.
Not applicable.
Item 7. Identification and Classification of the Subsidiary
Which Acquired the Security Being Reported on by
the Parent Holding Company.
Not applicable.
Item 8. Identification and Classification of Members of the
Group.
Not applicable.
Item 9. Notice of Dissolution of Group.
Not applicable.
Item 10. Certification.
Not applicable.<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 23 of 27
Signature
After reasonable inquiry and to the best of their
knowledge and belief, the undersigned certify that the
information set forth in this statement is true, complete and
correct.
DATED: February 12, 1997.
H&Q VENTURES INTERNATIONAL, H&Q ALLIANCE FUND
C.V.
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
H&Q VENTURES III HAMQUIST
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
H&Q VENTURES IV H&Q INVESTORS
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
ANGLO-CONTINENTAL VENTURE H&Q MICRION INVESTORS, L.P.
INVESTORS (BVI) LIMITED
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 24 of 27
HAMBRECHT & QUIST GUARANTY H&Q MANAGEMENT CORPORATION
FINANCE, L.P.
By: /s/ Steve Machtinger By: /s/ Jackie A. Berterretche
__________________________ __________________________
Steve Machtinger Jackie A. Berterretche
Vice President of GP Attorney-in-Fact
HAMBRECHT & QUIST GROUP RVR SECURITIES CORP.
LIMITED PARTNERSHIP INTEREST
LIQUIDATING TRUST
By: /s/ Steve Machtinger
By: /s/ William R. Hambrecht __________________________
__________________________ Steve Machtinger
William R. Hambrecht Secretary
Trustee
HAMBRECHT & QUIST CALIFORNIA
GUARANTY FINANCE MANAGEMENT
CORP.
By: /s/ Jackie A. Berterretche
By: /s/ Steve Machtinger __________________________
__________________________ Jackie A. Berterretche
Steve Machtinger Attorney-in-Fact
Vice President of GP
HAMBRECHT & QUIST GROUP
HAMBRECHT & QUIST INVESTMENT
PARTNERS
By: /s/ Jackie A. Berterretche
__________________________
By: /s/ Jackie A. Berterretche Jackie A. Berterretche
___________________________ Attorney-in-Fact
Jackie A. Berterretche
Attorney-in-Fact WILLIAM R. HAMBRECHT
HAMBRECHT & QUIST VENTURE
PARTNERS By: /s/ Jackie A. Berterretche
__________________________
Jackie A. Berterretche
By: /s/ Jackie A. Berterretche Attorney-in-Fact
__________________________
Jackie A. Berterretche
Attorney-in-Fact<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 25 of 27
EXHIBIT INDEX
Exhibit A Joint Filing Undertaking Page 26<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 26 of 27
JOINT FILING UNDERTAKING
The undersigned, being duly authorized thereunto,
hereby execute this agreement as an exhibit to this Amendment to
Schedule 13G to evidence the agreement of the below-named
parties, in accordance with rules promulgated pursuant to the
Securities Exchange Act of 1934, to file this Amendment and any
subsequent amendment jointly on behalf of each of such parties.
DATED: February 12, 1997.
H&Q VENTURES INTERNATIONAL, H&Q ALLIANCE FUND
C.V.
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
H&Q VENTURES III HAMQUIST
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
H&Q VENTURES IV H&Q INVESTORS
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact
ANGLO-CONTINENTAL VENTURE H&Q MICRION INVESTORS, L.P.
INVESTORS (BVI) LIMITED
By: /s/ Jackie A. Berterretche By: /s/ Jackie A. Berterretche
__________________________ __________________________
Jackie A. Berterretche Jackie A. Berterretche
Attorney-in-Fact Attorney-in-Fact<PAGE>
CUSIP No. 59479P-10-2 SCHEDULE 13G Page 27 of 27
HAMBRECHT & QUIST GUARANTY H&Q MANAGEMENT CORPORATION
FINANCE, L.P.
By: /s/ Steve Machtinger By: /s/ Jackie A. Berterretche
__________________________ __________________________
Steve Machtinger Jackie A. Berterretche
Vice President of GP Attorney-in-Fact
HAMBRECHT & QUIST GROUP RVR SECURITIES CORP.
LIMITED PARTNERSHIP INTEREST
LIQUIDATING TRUST
By: /s/ Steve Machtinger
By: /s/ William R. Hambrecht __________________________
__________________________ Steve Machtinger
William R. Hambrecht Secretary
Trustee
HAMBRECHT & QUIST CALIFORNIA
GUARANTY FINANCE MANAGEMENT
CORP.
By: /s/ Jackie A. Berterretche
By: /s/ Steve Machtinger __________________________
__________________________ Jackie A. Berterretche
Steve Machtinger Attorney-in-Fact
Vice President of GP
HAMBRECHT & QUIST GROUP
HAMBRECHT & QUIST INVESTMENT
PARTNERS
By: /s/ Jackie A. Berterretche
__________________________
By: /s/ Jackie A. Berterretche Jackie A. Berterretche
___________________________ Attorney-in-Fact
Jackie A. Berterretche
Attorney-in-Fact WILLIAM R. HAMBRECHT
HAMBRECHT & QUIST VENTURE
PARTNERS By: /s/ Jackie A. Berterretche
__________________________
Jackie A. Berterretche
By: /s/ Jackie A. Berterretche Attorney-in-Fact
__________________________
Jackie A. Berterretche
Attorney-in-Fact<PAGE>
