UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. _2_)* TEGAL CORPORATION - -------------------------------------------------------------------------------- (Name of Issuer) COMMON - -------------------------------------------------------------------------------- (Title of Class of Securities) 879008-10-0 ------------------------------ (CUSIP Number) David Nierenberg, The D3 Family Fund, 19605 NE 8th St., Camas, WA 98607 ------------------------------------------------------------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) 12/28/99 ------------------------------- (Date of Event which Requires Filing of this Statement) *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). 1 of 13 SCHEDULE 13D ------------ CUSIP No. 879008-10-0 Page 2 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON The D3 Family Fund, L.P. (David Nierenberg is President of the General Partner, which is Nierenberg Investment Management Company.) -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS WC -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION Washington -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------- SCHEDULE 13D ------------ CUSIP No. 8790208-10-0 Page 3 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Haredale, Ltd. -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS WC -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION The Bahamas -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* CO -------------------------------------------------------------------------- SCHEDULE 13D ------------ CUSIP No. 879008-10-0 Page 4 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Sharptown Limited -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS WC -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION Channel Islands, British Isles -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* CO -------------------------------------------------------------------------- SCHEDULE 13D ------------ CUSIP No. 879008-10-0 Page 5 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON James Henry Hildebrandt -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS WC -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION Canadian Citizen residing in Hong Kong -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------- SCHEDULE 13D ------------ CUSIP No. 879008-10-0 Page 6 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Toxford Corporation -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS WC -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION Channel Islands, British Isles -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* CO -------------------------------------------------------------------------- SCHEDULE 13D ------------ CUSIP No. 879008-10-0 Page 7 of 13 1) NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON The Nierenberg Family 1993 Trust -------------------------------------------------------------------------- 2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ X ] (b) [ ] 3) SEC USE ONLY _____________________________________________________________ 4) SOURCE OF FUNDS OO (Margin) -------------------------------------------------------------------------- 5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6) CITIZENSHIP OR PLACE OF ORGANIZATION Washington -------------------------------------------------------------------------- 7) SOLE VOTING POWER NUMBER OF 0 SHARES -------------------------------------------------- BENEFICIALLY 8) SHARED VOTING POWER OWNED BY 0 -------------------------------------------------- EACH 9) SOLE DISPOSITIVE POWER REPORTING 0 PERSON -------------------------------------------------- WITH 10) SHARED DISPOSITIVE POWER 0 -------------------------------------------------- 11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Aggregate amount owned is 0 -------------------------------------------------------------------------- 12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------- 13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0 -------------------------------------------------------------------------- 14) TYPE OF REPORTING PERSON* OO (Revocable Trust) -------------------------------------------------------------------------- Page 8 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background The D3 Family Fund, L.P., a Washington State partnership, whose principal business is investing in the equities of public micro-cap issuers. Located at 19605 N.E. 8th St., Camas, Washington 98607. No convictions or administrative proceedings as described in Item 2(d) and (e). Item 3. Source and Amount of Funds or Other Consideration Source of funds is money invested in the partnership by its partners. Aggregate amount invested in TGAL shares purchased by the partnership is $3,321,142.50, including commissions. Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) 0 (c) D3 sold 800,000 shares through Black & Company on December 27 at $6.20 a share and 233,500 on December 28 at $7.17 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer N/A Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - -------------------- ------------------------------------ Date David Nierenberg President Nierenberg Investment Management Company, Inc., the General Partner Of The D3 Family Fund, L.P. Page 9 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background (a) Haredale Ltd., a Bahamian corporation. (b) P.O. Box N-4465, Nassau, New Providence, The Bahamas. (c) Haredale is in the investment business at the address above. (d) None (e) None (f) The Bahamas. Item 3. Source and Amount of Funds or Other Consideration Haredale owns, and Mr. Nierenberg has sole voting and dispositive power over, its 37,333 shares. Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) 0 (c) On December 27 Haredale sold 37,333 shares through Bank of America Securities, LLC at $6.64 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer Haredale pays Mr. Nierenberg an annual management fee and a share of its net profits for his personal management of its accounts. Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - ------------------- ------------------------------------ Date David Nierenberg Authorized to trade for Haredale, Ltd. Page 10 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background (a) Sharptown Limited, a Channel Islands corporation. (b) P.O. Box 404, Pirouet House, Union St., St. Helier, Jersey JE4 9WG, Channel Islands, British Isles. (c) Sharptown Limited is in the investment business at the address above. (d) None (e) None (f) Channel Islands, British Isles. Item 3. Source and Amount of Funds or Other Consideration Sharptown Limited owns, and Mr. Nierenberg has sole voting and dispositive power over, its 7,167 shares. Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) 0 (c) On December 27 Sharptown sold 7,167 shares through Bank of America Securities, LLC at $6.64 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer Sharptown Limited pays Mr. Nierenberg an annual management fee and a share of its net profits for his personal management of its accounts. Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - -------------------- ------------------------------------ Date David Nierenberg Authorized to trade for Sharptown Limited Page 11 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background (a) James Henry Hildebrandt, an individual who is a citizen of Canada, resident in Hong Kong. (b) c/o Bain & Company, Tenth Floor, One Pacific Place, 88 Queensway, Hong Kong. (c) Mr. Hildebrandt is in the management consulting business. (d) None (e) None (f) Canada Item 3. Source and Amount of Funds or Other Consideration Mr. Hildebrandt owns, and Mr. Nierenberg has sole voting and dispositive power over, his 6,833 shares. Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) 0 (c) On December 27 Hildebrandt sold 6,833 shares through Bank of America Securities, LLC at $6.64 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer Mr. Hildebrandt pays Mr. Nierenberg an annual management fee and a share of its net profits for his personal management of its accounts. Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - -------------------- ------------------------------------ Date David Nierenberg Authorized to trade for John Henry Hildebrandt Page 12 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background (a) Toxford Corporation, a Channel Islands corporation. (b) P.O. Box 3048, St. Andrews House, Le Bordage, St. Peter Port, Guernsey, Channel Islands, British Isles. (c) Toxford Corporation is in the investment business at the address above. (d) None (e) None (f) Channel Islands, British Isles. Item 3. Source and Amount of Funds or Other Consideration Toxford Corporation owns, and Mr. Nierenberg has sole voting and dispositive power over, its 7,167 shares. Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) 0 (c) On December 27 Toxford sold 7,167 shares through Bank of America Securities, LLC at $6.64 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer Toxford Corporation pays Mr. Nierenberg an annual management fee and a share of its net profits for his personal management of its accounts. Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - ------------------ ------------------------------------ Date David Nierenberg Authorized to trade for Toxford Corporation Page 13 of 13 Item 1. Security and Issuer Common stock of Tegal Corporation (TGAL), 2201 South McDowell Blvd., Petaluma, California 94955. Item 2. Identity and Background (a) The Nierenberg Family 1993 Trust, Dated 6/11/93, David and Patricia A. Nierenberg, Trustors and Trustees. (b) 19605 N.E. 8th Street, Camas, Washington 98607 (c) Investment Management. Employed by Nierenberg Investment Management Co., the General Partner at D3, at the address above. (d) None (e) None (f) United States Item 3. Source and Amount of Funds or Other Consideration Margin borrowing from the trust's brokerage account at Robertson Stephens & Co. Aggregrate amount invested by the trust is $248,062.50 (93,500 shares). Item 4. Purpose of Transaction The purpose of purchasing the shares was for investment. None of the other actions described in Items 4(a)-(j) are currently contemplated. Item 5. Interest in Securities of the Issuer (a,b) (c) On December 27 Nierenberg Family 1993 Trust sold 93,500 shares through Black & Company at $6.03 a share. (d) N/A (e) N/A Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer N/A Item 7. Material to be Filed as Exhibits N/A Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. January 3, 2000 DAVID NIERENBERG - -------------------- ------------------------------------ Date David Nierenberg Authorized to trade for The Nierenberg Family 1993 Trust