FORM 10-Q/A (Amendment No. 1) SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ================================================================================ [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended: December 31, 1997 ---------------------- [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ____________ to ____________ Commission File Number: 0-11412 ---------- AMTECH SYSTEMS, INC. - -------------------------------------------------------------------------------- (Exact name of Registrant as specified in its charter) Arizona 86-0411215 - -------------------------------------------------------------------------------- (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 131 South Clark Drive, Tempe, Arizona 85281 - -------------------------------------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code (602) 967-5146 - -------------------------------------------------------------------------------- The undersigned Registrant hereby amends its Form 10-Q for the Quarter ended December 31, 1997, as follows: Exhibit 27 is hereby replaced in its entirety with the Exhibit 27 filed with this amendment. This filing is being made to correct an inadvertent error in the eps-primary figure previously disclosed in this schedule. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. AMTECH SYSTEMS, INC. by /s/ Robert T. Hass --------------------------------------- Robert T. Hass, Vice-President and Chief Financial Officer DATED: February 19, 1998 14