<SEC-DOCUMENT>0000720500-17-000050-index.html : 20170818
<SEC-HEADER>0000720500-17-000050.hdr.sgml : 20170818
<ACCEPTANCE-DATETIME>20170818083556
ACCESSION NUMBER:		0000720500-17-000050
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20170818
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170818
DATE AS OF CHANGE:		20170818

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMTECH SYSTEMS INC
		CENTRAL INDEX KEY:			0000720500
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				860411215
		STATE OF INCORPORATION:			AZ
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11412
		FILM NUMBER:		171040143

	BUSINESS ADDRESS:	
		STREET 1:		131 SOUTH CLARK DRIVE
		CITY:			TEMPE
		STATE:			AZ
		ZIP:			85281
		BUSINESS PHONE:		4809675146

	MAIL ADDRESS:	
		STREET 1:		131 SOUTH CLARK DRIVE
		CITY:			TEMPE
		STATE:			AZ
		ZIP:			85281

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	QUARTZ ENGINEERING & MATERIALS INC
		DATE OF NAME CHANGE:	19870715
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>q420178-kofferingpricing.htm
<DESCRIPTION>8-K OFFERING PRICING
<TEXT>
Document 1 - file: q420178-kofferingpricing.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.1
<SEQUENCE>2
<FILENAME>underwritingagreement_v3.htm
<DESCRIPTION>EXHIBIT 1.1
<TEXT>
Document 2 - file: underwritingagreement_v3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>asys-51opinion1.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 3 - file: asys-51opinion1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>4
<FILENAME>q42017offeringannouncement.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 4 - file: q42017offeringannouncement.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>5
<FILENAME>q420178-kofferingpricingpr.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 5 - file: q420178-kofferingpricingpr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>asys51opinionimage1a01.jpg
<TEXT>
Document 6 - file: asys51opinionimage1a01.jpg

</DOCUMENT>
</SEC-DOCUMENT>