SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                  FORM 12B-25

                          Commission File No.: 1-10938

                          NOTIFICATION OF LATE FILING


(Check One):  [ ] Form 10-K      [ ] Form 11-K      [ ] Form 20-F
              [x] Form 10-Q      [  ] Form N-SAR

     For Period Ended:  March 31, 2003
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     [  ]          Transition Report on Form 10-KSB
     [  ]          Transition Report on Form 10-Q
     [  ]          Transition Report on Form 20-F
     [  ]          Transition Report on Form N-SAR
     [  ]          Transition Report on Form 11-K

     For the Transition Period Ended:
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[READ ATTACHED INSTRUCTION SHEET BEFORE PREPARING FORM. PLEASE PRINT OR TYPE.]

     Nothing in this form shall be construed to imply that the Commission has
verified any information contained herein.


     If the notification relates to a portion of the filing checked above,
identify the item(s) to which the notification relates:


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                                    PART I
                            REGISTRANT INFORMATION
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Full name of Registrant:      SEMX Corporation
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Former name if applicable:

                                ------
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Address of principal executive office (Street and Number):

                       1 Labriola Court
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City, State and Zip Code:  Armonk, New York 10504
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                                     PART II

                             RULE 12B-25(b) AND (c)

     If the subject report could not be filed without unreasonable effort or
expense and the registrant seeks relief pursuant to Rule 12b-25(b), the
following should be completed. (Check box if appropriate.)

[X]       (a)   The reasons described in reasonable detail in Part III of this
                form could not be eliminated without unreasonable effort or
                expense;

[X]       (b)   The subject annual report, semi-annual report, transition report
                on Form 10-K, 20-F, 11-K or Form N-SAR, or portion thereof will
                be filed on or before the 15th calendar day following the
                prescribed due date; or the subject quarterly report or
                transition report on Form 10-Q, or portion thereof will be filed
                on or before the fifth calendar day following the prescribed due
                date; and

[ ]       (c)   The accountant's statement or other exhibit required by Rule
                12b-25(c) has been attached if applicable.


                                    PART III

                                    NARRATIVE

     State below in reasonable detail the reasons why Form 10-K, 11-K, 20-F,
10-Q, N-SAR or the transition report portion thereof could not be filed within
the prescribed time period. (Attach extra sheets if needed.)

     Registrant is unable to file its 10-Q Report by the prescribed due date
without unreasonable effort and expense.

     On January 15, 2003 the Registrant completed the sale of the stock of its
Polese Company subsidiary. Due to the large amount of work involved in
completing the sale of this subsidiary, and the necessary accounting work due to
the segregation of continuing and discontinued operations, the Registrant has
been delayed in preparing and completing its Form 10-Q. The Registrant expects
to file the Form 10-Q on or before the 5th calendar day following the prescribed
due date.

                                     PART IV

                                OTHER INFORMATION

     1. Name and telephone number of person to contact in regard to this
notification:

Gilbert Raker - Chairman, President and CEO    (914)        273-5500
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         (Name)                            (Area Code)   (Telephone Number)

     2. Have all other periodic reports under Section 13 or 15(d) of the
Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of
1940 during the preceding 12 months or for such shorter period that the
registrant was required to file such report(s) been filed? If the answer is no,
identify report(s).

[X]  Yes   [ ]  No




     3. Is it anticipated that any significant change in results of operations
from the corresponding period for the last fiscal year will be reflected by the
earnings statements to be included in the subject report or portion thereof?

[X]  Yes   [ ]  No

     If so: attach an explanation of the anticipated change, both narratively
and quantitatively, and, if appropriate, state the reasons why a reasonable
estimate of the results cannot be made.

                                SEMX CORPORATION
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                  (Name of Registrant as Specified in Charter)

Has caused this notification to be signed on its behalf by the undersigned
thereunto duly authorized.

Date:       May 15, 2003        By: /s/ Gilbert Raker - Chairman, President, CEO
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     Instruction. The form may be signed by an executive officer of the
     registrant or by any other duly authorized representative. The name and
     title of the person signing the form shall be typed or printed beneath the
     signature. If the statement is signed on behalf of the registrant by an
     authorized representative (other than an executive officer), evidence of
     the representative's authority to sign on behalf of the registrant shall be
     filed with the form.

                                    ATTENTION

     Intentional misstatements or omissions of fact constitute Federal criminal
violations (see 18 U.S.C. 1001).

                              GENERAL INSTRUCTIONS

     1. This form is required by Rule 12b-25 of the General Rules and
Regulations under the Securities Exchange Act of 1934.

     2. One signed original and four conformed copies of this form and
amendments thereto must be completed and filed with the Securities and Exchange
Commission, Washington, D.C. 20549, in accordance with Rule 0-3 of the General
Rules and Regulations under the Act. The information contained in or filed with
the form will be made a matter of the public record in the Commission files.

     3. A manually signed copy of the form and amendments thereto shall be filed
with each national securities exchange on which any class of securities of the
registrant is registered.

     4. Amendments to the notifications must also be filed on Form 12b-25 but
need not restate information that has been correctly furnished. The form shall
be clearly identified as an amended notification.






     5. Electronic Filers. This form shall not be used by electronic filers
unable to timely file a report solely due to electronic difficulties. Filers
unable to submit a report within the time period prescribed due to difficulties
in electronic filing should comply with either Rule 201 or Rule 202 of
Regulation S-T or apply for an adjustment in filing date pursuant to Rule 13(b)
of Regulation S-T.


Rule 12b-25
Part IV - Item (3)

     The Company expects to report a loss for the quarter due to a loss on
disposal of its Polese Company subsidiary, which is being written down to net
realizable value, based upon the transaction terms. As part of this process the
Company and its advisors are completing an analysis of the effects of the
transaction, which could generate material changes to the loss. Thus, for the
above reason, a reasonable estimate of results cannot be made.