Document:

Exhibit 4.6(a)

                              CERTIFICATE OF TRUST

                                       OF

                                  AES TRUST VI

     This Certificate of Trust of AES Trust VI (the "Trust"), dated May 24,
2000, is being duly executed and filed by the undersigned, as trustees, to form
a business trust under the Delaware Business Trust Act (12 Del. C.ss.3801, et
seq.) (the "Act").

     1. Name. The name of the business trust formed by this Certificate of Trust
is AES Trust VI.

     2. Delaware Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are Bank One
Delaware, Inc., Christiana Center, 201 North Walnut Street, Wilmington, Delaware
19801, Attention: Legal Department/First USA.

     3. Effective Date. This Certificate of Trust shall be effective upon filing
with the Secretary of State of the State of Delaware.

     IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust, have
executed this Certificate of Trust in accordance with Section 3811(a)(1) of the
Act.

                            BANK ONE, NATIONAL ASSOCIATION,
                            not in its individual capacity but solely as trustee

                            By:    /s/ Melissa G. Weisman
                              --------------------------------------------------
                                 Name: Melissa G. Weisman
                                 Title: Vice President

                            BANK ONE DELAWARE, INC.,
                            not in its individual capacity but solely as trustee

                            By:   /s/ Melissa G. Weisman
                              --------------------------------------------------
                                 Name: Melissa G. Weisman
                                 Title: Vice President

<PAGE>

                            WILLIAM R. LURASCHI,
                            not in his individual capacity but solely as trustee

                                  /s/ William R. Luraschi
                              --------------------------------------------------

                            WILLARD C. HOAGLAND, III,
                            not in his individual capacity but solely as trustee

                                  /s/ Willard C. Hoagland, III
                              --------------------------------------------------

                            BARRY J. SHARP,
                            not in his individual capacity but solely as trustee

                                  /s/ Barry J. Sharp
                              --------------------------------------------------

                                       -2-Exhibit 4.6(b)

                              CERTIFICATE OF TRUST

                                       OF

                                 AES TRUST VIII

     This Certificate of Trust of AES Trust VIII (the "Trust"), dated May 24,
2000, is being duly executed and filed by the undersigned, as trustees, to form
a business trust under the Delaware Business Trust Act (12 Del. C.ss.3801, et
seq.) (the "Act").

     1. Name. The name of the business trust formed by this Certificate of Trust
is AES Trust VIII.

     2. Delaware Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are Bank One
Delaware, Inc., Christiana Center, 201 North Walnut Street, Wilmington, Delaware
19801, Attention: Legal Department/First USA.

     3. Effective Date. This Certificate of Trust shall be effective upon filing
with the Secretary of State of the State of Delaware.

     IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust, have
executed this Certificate of Trust in accordance with Section 3811(a)(1) of the
Act.

                            BANK ONE, NATIONAL ASSOCIATION,
                            not in its individual capacity but solely as trustee

                            By: /s/ Melissa G. Weisman
                              --------------------------------------------------
                             Name:  Melissa G. Weisman
                             Title: Vice President

                            BANK ONE DELAWARE, INC.,
                            not in its individual capacity but solely as trustee

                            By: /s/ Melissa G. Weisman
                              --------------------------------------------------
                             Name:  Melissa G. Weisman
                             Title: Vice President

<PAGE>

                            WILLIAM R. LURASCHI,
                            not in his individual capacity but solely as trustee

                            /s/ William R. Luraschi
                            ----------------------------------------------------

                            WILLARD C. HOAGLAND, III,
                            not in his individual capacity but solely as trustee

                            /s/ Willard C. Hoagland, III
                            ----------------------------------------------------

                            BARRY J. SHARP,
                            not in his individual capacity but solely as trustee

                            /s/ Barry J. Sharp
                            ----------------------------------------------------

                                       -2-Exhibit 4.6(c)

                              CERTIFICATE OF TRUST

                                       OF

                                  AES TRUST IX

     This Certificate of Trust of AES Trust IX (the "Trust"), dated May 24,
2000, is being duly executed and filed by the undersigned, as trustees, to form
a business trust under the Delaware Business Trust Act (12 Del. C.ss.3801, et
seq.) (the "Act").

     1. Name. The name of the business trust formed by this Certificate of Trust
is AES Trust IX.

     2. Delaware Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are Bank One
Delaware, Inc., Christiana Center, 201 North Walnut Street, Wilmington, Delaware
19801, Attention: Legal Department/First USA.

     3. Effective Date. This Certificate of Trust shall be effective upon filing
with the Secretary of State of the State of Delaware.

     IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust, have
executed this Certificate of Trust in accordance with Section 3811(a)(1) of the
Act.

                            BANK ONE, NATIONAL ASSOCIATION,
                            not in its individual capacity but solely as trustee

                            By: /s/ Melissa G. Weisman
                              --------------------------------------------------
                             Name:  Melissa G. Weisman
                             Title: Vice President

                            BANK ONE DELAWARE, INC.,
                            not in its individual capacity but solely as trustee

                            By: /s/ Melissa G. Weisman
                              --------------------------------------------------
                             Name:  Melissa G. Weisman
                             Title: Vice President

<PAGE>

                            WILLIAM R. LURASCHI,
                            not in his individual capacity but solely as trustee

                            /s/ William R. Luraschi
                            ----------------------------------------------------

                            WILLARD C. HOAGLAND, III,
                            not in his individual capacity but solely as trustee

                            /s/ Willard C. Hoagland, III
                            ----------------------------------------------------

                            BARRY J. SHARP,
                            not in his individual capacity but solely as trustee

                            /s/ Barry J. Sharp
                            ----------------------------------------------------

                                       -2-MIPS
                               TECHNOLOGIES INC.

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                             SEE REVERSE FOR CERTAIN DEFINITIONS
THIS CERTIFICATE IS TRANSFERABLE      CLASS B COMMON STOCK
IN BOSTON, MA. OR NEW YORK, NY                               CUSIP 604567 20 6

                               [GRAPHIC OMITTED]

   FULLY PAID AND ASSESSABLE SHARES OF THE CLASS B STOCK, $0.001 PAR VALUE OF

                            MIPS Technologies, Inc.

transferable on the books of the Corporation in person or by duly authorized
attorney upon surrender of this Certificate properly endorsed.  This Certificate
is not valid unless countersigned and registered by the Transfer Agent and
Registrar.

Witness the facsimile seal of the Corporation and the facsimile signatures of
its duly authorized officers.

                              CERTIFICATE OF STOCK

Dated:

__________________________
       Secretary                                  [SEAL OF CORPORATION]

_____________________________________
President and Chief Executive Officer

Countersigned and Registered
     FLEET NATIONAL BANK
          Transfer Agent and Registrar

By: ___________________________________
                    Authorized Officer
<PAGE>
                            MIPS Technologies, Inc.

     The statement of the powers, designations, preferences and relative,
participating, optional or other special rights of each class of stock or series
thereof and the qualifications, limitations or restrictions of such preferences
and/or rights as established, from time to time, by the Certificate of
Incorporation and by any certificate of desigantion, and the number of shares
constituting each class and series and the designations thereof, may be obtained
by the holder hereof upon request and without charge from the Corporation at its
principal office.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common
TEN ENT -- as tenants by the entirities
JT TEN  -- as joint tenants with right of
           survivorship and not as tenants
           in common

UNIF GIFT MIN ACT -- ______________________, Custodian _______________________
                        (Cust)                           (Minor)

                    Under Uniform Gifts to Minors Act ________________________
                                                          (State)

UNIF TRF MIN ACT -- ______________________, Custodian (until age)_____________
                        (Cust)

                    ______________________ under Uniform Transfers

                    to Minors Act ________________________
                                         (State)

    Additional abbreviations may also be used though not in the above list.

FOR VALUE RECEIVED,________________________hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

__________________________________

_______________________________________________________________________________
  (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE OF ASSIGNEE)

_______________________________________________________________________________

_______________________________________________________________________________

__________________________________________________________________________Shares
of the Class B common stock represented by the within Certificate, and do
hereby irrevocably constitute and appoint

______________________________________________________________________ Attorney
to transfer the said stock on the books of the within name Corporation with
full power of substitution in the premises.

Dated_____________________

          _____________________________________________________________________
NOTICE:   THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
          WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT
          ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

By_________________________________________________
THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE
GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS
AND LOAN ASSOICATIONS AND CREDIT UNIONS WITH MEMBER-
SHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION
PROGRAM), PURSUANT TO SEC RULE 17Ad-15.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}], [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}], [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}]]