Document:

<PAGE>

                                                                     Exhibit 4.9

     THIS FIRST SUPPLEMENTAL INDENTURE is dated as of February 10, 1998, between
Details Capital Corp., a California corporation (the "Company") and State Street
Bank and Trust Company, a Massachusetts trust company, as trustee under the
Indenture hereinafter mentioned (the "Trustee").

     WHEREAS, Details Holdings Corp. a California corporation and the sole
stockholder of the Company ("Holdings"), heretofore executed and delivered to
the Trustee an indenture dated as of November 18, 1997 (the "Existing
Indenture", and the Existing Indenture, as it may from time to time be
supplemented or amended by one or more additional indentures supplemental
thereto entered into pursuant to the applicable provisions thereof, being
hereinafter called the "Indenture"), providing for the creation of and issuance
of (i) Holdings' 12 1/2% Senior Discount Notes due 2007, (the "Senior Discount
Notes") and (ii) if and when issued in exchange for Senior Discount Notes as
provided in the Registration Rights Agreement, Holdings' 12 1/2% Series B Senior
Discount Notes due 2007 (the "Exchange Discount Notes") (collectively, the
Senior Discount Notes and the Exchange Discount Notes are referred to herein as
the "Discount Notes"), of substantially the tenor and amount set forth in the
Existing Indenture; and

     WHEREAS, in connection with the conveyance by Holdings to the Company of
substantially all of its assets, subject to certain liabilities including the
Discount Notes, the Company has agreed to assume all of Holdings' obligations in
respect of the Discount Notes under the Existing Indenture; and

     WHEREAS, the Company intends by this First Supplemental Indenture, pursuant
to and as contemplated by Section 801 and Section 901 of the Existing Indenture,
to expressly assume all of the obligations of Holdings contained in the Existing
Indenture and in the Discount Notes and to succeed to, and be substituted for,
and exercise every right and power of, Holdings under the Indenture; and that
pursuant to Section 801 of the Existing Indenture, Holdings will be released
from all obligations and covenants under the Indenture;

     NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

     That, for and in consideration of the premises herein contained and
in order to comply with the terms of Section 801 of the Existing Indenture, the
Company agrees with the Trustee as follows:
<PAGE>

                                  ARTICLE 1

                     Assumption of Obligations of Holdings
                     -------------------------------------

     Section 101.  Assumption.  The Company hereby expressly and
     -----------   ----------
unconditionally assumes the due and punctual performance and observance of all
of the obligations of Holdings contained in the Existing Indenture as if the
Company had been the original maker of the Discount Notes, and also hereby
expressly and unconditionally assumes the due and punctual payment of the
principal of and interest on all of the Discount Notes and the due and punctual
performance and observance of all of the covenants and conditions of Holdings
contained in each Discount Note outstanding on the date of this First
Supplemental Indenture. Any reference to "Holdings" as defined in the Existing
Indenture shall be deemed to refer to the Company, and subject to the provisions
of Article Eight of the Existing Indenture, shall also include the Company's
successors and assigns. Any Discount Note delivered after the date of this First
Supplemental Indenture in substitution or exchange for any outstanding Discount
Note shall constitute an obligation of the Company.

                                   ARTICLE 2

                        Amendment of Existing Indenture
                        -------------------------------

     Section 201.  Amendment of Section 202.  Pursuant to Sections 802 and 906
     -----------   ------------------------
of the Existing Indenture, Section 202 of the Existing Indenture is hereby
amended by adding the following to the end thereof:

     Discount Notes issued after February 10, 1998 shall bear the following
legend:

     DETAILS CAPITAL CORP., A CALIFORNIA CORPORATION (THE "COMPANY"), HAS
EXPRESSLY ASSUMED, PURSUANT TO THE TERMS OF A FIRST SUPPLEMENTAL INDENTURE DATED
AS OF FEBRUARY 10, 1998 BETWEEN THE COMPANY AND STATE STREET BANK AND TRUST
COMPANY, AS TRUSTEE (THE "TRUSTEE"), THE OBLIGATIONS OF DETAILS HOLDINGS CORP.,
A CALIFORNIA CORPORATION ("HOLDINGS"), UNDER THIS DISCOUNT NOTE AND THE
INDENTURE DATED AS OF NOVEMBER 18, 1997 BETWEEN HOLDINGS AND THE TRUSTEE AS IF
THE COMPANY HAD BEEN THE ORIGINAL MAKER HEREOF.

                                  ARTICLE 3

                                 The Trustee
                                 -----------

     Section 301.  Privileges and Immunities of Trustee.  The Trustee accepts
     -----------   ------------------------------------
the amendment of the Indenture effected by this First Supplemental Indenture but
only upon the terms and conditions set forth in the Indenture, including the
terms and provisions defining and limiting the liabilities and responsibilities
of the Trustee, which terms and provisions shall in like manner define and limit
its liabilities and responsibilities in the performance of the trust created by
the Indenture as hereby amended. The Trustee shall not be responsible for the
adequacy or sufficiency of the First Supplemental Indenture, for the due
execution thereof by the Company or for the recitals contained herein, which are
the Company's.

                                  ARTICLE 4

                                     -2-
<PAGE>

                           Miscellaneous Provisions
                           ------------------------

     Section 401.  Instruments to be Read Together.  This First Supplemental
     -----------   -------------------------------
Indenture is an indenture supplemental to and in implementation of the Existing
Indenture, and said Existing Indenture and this First Supplemental Indenture
shall henceforth be read together.

     Section 402.  Confirmation.  The Existing Indenture as amended and
     -----------   ------------
supplemented by this First Supplemental Indenture is in all respects confirmed
and preserved.

     Section 403.  Terms Defined.  All terms defined in the Existing Indenture
     -----------   -------------
have the meanings herein as so defined.

     Section 404.  Counterparts.  This First Supplemental Indenture may be
     -----------   ------------
signed in any number of counterparts each of which so executed shall be deemed
to be an original, but all such counterparts shall together constitute but one
and the same instrument.

     Section 405.  Effectiveness.  The provisions of this First Supplemental
     -----------   -------------
Indenture will take effect immediately upon its execution and delivery by the
Trustee in accordance with the provisions of Section 801 of the Existing
Indenture.

     Section 406.  Governing Law.  This First Supplemental Indenture shall be
     -----------   -------------
governed by, and be construed in accordance with, the laws of the State of New
York excluding (to the greatest extent permissible by law) any rule of law that
would cause the application of the laws of any jurisdiction other than the state
of New York. Upon the issuance of the Exchange Discount Notes or the
effectiveness of the shelf registration statement, the Indenture shall be
subject to the provisions of the Trust Indenture Act that are required to be
part of the Indenture and shall, to the extent applicable, be governed by such
provisions. Each of the parties hereto agrees to submit to the jurisdiction of
the courts of the state of New York and the U.S. federal courts, in each case
sitting in the borough of Manhattan, and waives any objection as to venue or
forum non conveniens.

                 [Remainder of Page Intentionally Left Blank]

                                     -3-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental
Indenture to be duly executed as of the day and year first above written.

                                        Details Capital Corp.

                                        By: /s/ BRUCE McMASTER
                                            -------------------------------
                                        Name:   Bruce McMaster
                                        Title:  President

ATTEST:

 /s/   JOSEPH P. GISCH
-----------------------------
Name:  Joseph P. Gisch
Title: Secretary

                                        State Street Bank and Trust Company

                                        By: /s/ EARL W. DENNISON, JR.
                                            -------------------------------
                                        Name:   Earl W. Dennison, Jr.
                                        Title:  Vice President

                                      -4-<PAGE>

                                                                   EXHIBIT 4.13

     THIS SECOND SUPPLEMENTAL INDENTURE is dated as of January 31, 2001, between
Dynamic Details, Incorporated., a California corporation (the "Company"),
Dynamic Details Incorporated, Virginia, a Delaware corporation ("Dynamic Details
Virginia"), DDi Sales Corp., a Delaware corporation ("DDi Sales"), Dynamic
Details Texas, L.P., a Delaware limited partnership ("Dynamic Details Texas"),
Dynamic Details, L.P., a Delaware limited partnership ("DDi-Texas"), the 1998
Guarantors (as defined below), and State Street Bank and Trust Company, a
Massachusetts trust company, as trustee under the Indenture hereinafter
mentioned (the "Trustee").

     Capitalized terms not defined herein shall have the meaning assigned to
such terms in the Existing Indenture (as defined below).  Dynamic Details
Virginia, DDi Sales, Dynamic Details Texas and DDi-Texas are referred to herein
as the "2001 Guarantors".

     WHEREAS, the Company heretofore executed and delivered to the Trustee an
indenture dated as of November 18, 1997 (the "Existing Indenture", and the
Existing Indenture, as it may from time to time be supplemented or amended by
one or more additional indentures supplemental thereto entered into pursuant to
the applicable provisions thereof, being hereinafter called the "Indenture"),
providing for the creation of and issuance of Detail's 10% Senior Subordinated
Notes due 2005 (the "Notes");

     WHEREAS, the Company and Dynamic Circuits, Inc., a Delaware corporation
("DCI"), Colorado Springs Circuits, Inc., a Colorado corporation ("NTI"), and
Cuplex, Inc., a Delaware corporation ("Cuplex") (collectively the "1998
Guarantors") heretofore executed and delivered to the Trustee an indenture dated
as of July 23, 1998 (the "First Supplemental Indenture"), providing for the
addition of the 1998 Guarantors as parties to the Existing Indenture; and

     WHEREAS, Section 1018 of the Indenture provides that the Company will cause
each Restricted Subsidiary created or acquired by the Company which Guarantees
the Bank Indebtedness to execute and deliver a Subsidiary Guarantee.

     NOW, THEREFORE, THIS SECOND SUPPLEMENTAL INDENTURE WITNESSETH:

     That, for and in consideration of the premises herein contained and in
order to comply with the terms of Section 1018 of the Indenture, pursuant to
Section 901 of the Indenture, the Company and the 2001 Guarantors agree with the
Trustee as follows:

1.  Amendment of Indenture

     1.1   Addition of 2001 Guarantors as Parties.  The Indenture is hereby
amended to add each of the 2001 Guarantors as parties thereto solely for the
purpose of providing the Subsidiary Guarantee set forth in Section 1.2 below.

     1.2  Article 14.  Section 1401 of the Indenture is hereby amended as
          ----------
follows:

               ARTICLE FOURTEEN.  EXISTING SUBSIDIARY GUARANTORS
<PAGE>

     SECTION 1401.  Pursuant to Section 1018 of this Indenture and subject to
Sections 1402 and 1403 hereof, each of Dynamic Circuits Inc., Colorado Springs
Circuits, Inc., Cuplex, Inc., Dynamic Details Incorporated Virginia, DDi Sales
Corp., Dynamic Details Texas, L.P. and DDi-Texas, L.P. (collectively the
"Existing Subsidiary Guarantors") hereby unconditionally Guarantee (but subject
to the limitations and provisions set forth in Section 1018 hereof) on a joint
and several basis, the full and prompt payment of the principal of, premium, if
any and interest on the Notes on a senior subordinated basis for so long as such
Restricted Subsidiary Guarantees the Bank Indebtedness.

     1.3  Amendment of Section 202.  Pursuant to Section 906 of the Indenture,
Section 202 of the Indenture is hereby amended by adding the following to the
end thereof:

     Discount Notes issued after July 23, 1998 shall bear the following legend:

     EACH OF DYNAMIC CIRCUITS INC.,  COLORADO SPRINGS CIRCUITS, INC., AND
     CUPLEX, INC. HAVE PROVIDED A SUBSIDIARY GUARANTEE WITH RESPECT TO THE NOTES
     PURSUANT TO A SUPPLEMENTAL INDENTURE DATED AS OF JULY 23, 1998

     Discount Notes issued after January 31, 2001 shall bear the following
legend:

     EACH OF DYNAMIC DETAILS INCORPORATED, VIRGINIA, DDi SALES CORP.,
     DYNAMIC DETAILS TEXAS, L.P. AND DDi-TEXAS, L.P. HAVE PROVIDED A
     SUBSIDIARY GUARANTEE WITH RESPECT TO THE NOTES PURSUANT TO A SUPPLEMENTAL
     INDENTURE DATED AS OF JANUARY 31, 2001.

2.   Privileges and Immunities of Trustee.
     ------------------------------------

     The Trustee accepts the amendment of the Indenture effected by this Second
Supplemental Indenture but only upon the terms and conditions set forth in the
Indenture, including the terms and provisions defining and limiting the
liabilities and responsibilities of the Trustee, which terms and provisions
shall in like manner define and limit its liabilities and responsibilities in
the performance of the trust created by the Indenture as hereby amended.  The
Trustee shall not be responsible for the adequacy or sufficiency of the Second
Supplemental Indenture, for the due execution thereof by the Company and the
Existing Subsidiary Guarantors or for the recitals contained herein, which are
the Company's and the Existing Subsidiary Guarantors' responsibilities.

                                      -2-
<PAGE>

3.  Miscellaneous Provisions

     3.1  Instruments to be Read Together.  This Second Supplemental Indenture
is an indenture supplemental to and in implementation of the Existing Indenture,
and said Existing Indenture and this Second Supplemental Indenture shall
henceforth be read together.

     3.2  Confirmation.  The Existing Indenture as amended and supplemented by
this Second Supplemental Indenture is in all respects confirmed and preserved.

     3.3  Counterparts.  This Second Supplemental Indenture may be signed in any
number of counterparts each of which so executed shall be deemed to be an
original, but all such counterparts shall together constitute but one and the
same instrument.

     3.4  Governing Law.  This Second Supplemental Indenture shall be governed
by, and be construed in accordance with, the laws of the State of New York
excluding (to the greatest extent permissible by law) any rule of law that would
cause the application of the laws of any jurisdiction other than the state of
New York.  Each of the parties hereto agrees to submit to the jurisdiction of
the courts of the state of New York and the U.S. federal courts, in each case
sitting in the borough of Manhattan, and waives any objection as to venue or
forum non conveniens.

                  [Remainder of Page Intentionally Left Blank]

                                      -3-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Second Supplemental
Indenture to be duly executed as of the day and year first above written.

                              DYNAMIC DETAILS, INCORPORATED

                              By: /s/ TIMOTHY J. DONNELLY
                                 ---------------------------------
                              Name:
                              Title:

ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary
                              DYNAMIC DETAILS  INCORPORATED, VIRGINIA
                              (Effective as of August 4, 2000)

                              By: /s/ TIMOTHY J. DONNELLY
                                 ---------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President
ATTEST:

 /s/   TERRY WRIGHT
--------------------------
Name:  Terry Wright
Title: Vice President

                              DDI SALES CORP.
                              (Effective as of December 31, 2000)

                              By: /s/ TIMOTHY J. DONNELLY
                                 ---------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President

ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary

                              DYNAMIC DETAILS TEXAS, L.P.
                              (Effective as of December 31, 2000)

                              By: /s/ TIMOTHY J. DONNELLY
                                 ---------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President of General Partner,
                                      DDi-Texas Intermediate Partners, LLC

ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary of
       General Partner,
       DDi-Texas Intermediate
       Partners, LLC

                                      -4-
<PAGE>

                              DYNAMIC DETAILS, L.P.
                              (Effective as of December 31, 2000)

                              By: /s/ TIMOTHY J. DONNELLY
                                  --------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President of General Partner,
                                      DDi-Texas Intermediate Partners, LLC

ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary
       of General Partner,
       DDi-Texas Intermediate
       Partners, LLC

                              DYNAMIC DETAILS INCORPORATED, SILICON VALLEY
                              (Formerly Dynamic Circuits, Inc.)

                              By: /s/ TIMOTHY J. DONNELLY
                                  --------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President
ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary

                              DYNAMIC DETAILS INCORPORATED, TEXAS
                              (Formerly Cuplex, Inc.)

                              By: /s/ TIMOTHY J. DONNELLY
                                  --------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President
ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary

                                      -5-
<PAGE>

                               DYNAMIC DETAILS INCORPORATED, COLORADO SPRINGS
                              (Formerly Colorado Springs Circuits, Inc.)

                              By: /s/ TIMOTHY J. DONNELLY
                                  ----------------------------------
                              Name:   Timothy J. Donnelly
                              Title:  Vice President

ATTEST:

 /s/   DEBORAH COLSCH
--------------------------
Name:  Deborah Colsch
Title: Assistant Secretary

                              STATE STREET BANK AND TRUST
                              COMPANY

                              By:   /s/ EARL W. DENNISON, JR.
                                  ----------------------------------
                              Name:     Earl W. Dennison, Jr.
                              Title:    Vice President

                                      -6-

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