<SEC-DOCUMENT>0001209191-19-054369.txt : 20191029
<SEC-HEADER>0001209191-19-054369.hdr.sgml : 20191029
<ACCEPTANCE-DATETIME>20191029204159
ACCESSION NUMBER:		0001209191-19-054369
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20191025
FILED AS OF DATE:		20191029
DATE AS OF CHANGE:		20191029

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lesaicherre Pierre-Yves
		CENTRAL INDEX KEY:			0001723434

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39110
		FILM NUMBER:		191177174

	MAIL ADDRESS:	
		STREET 1:		C/O NANOMETRICS, INCORPORATED
		STREET 2:		1550 BUCKEYE DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Onto Innovation Inc.
		CENTRAL INDEX KEY:			0000704532
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				942276314
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		16 JONSPIN ROAD
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887
		BUSINESS PHONE:		408-545-6000

	MAIL ADDRESS:	
		STREET 1:		16 JONSPIN ROAD
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NANOMETRICS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<SEQUENCE>1
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    <footnotes>
        <footnote id="F1">Each performance stock unit represented a contingent right to receive one share of NANO common stock. The grant was made at 150% of target. The performance stock units vested at target, resulting in the issuance of 2/3 of the shares subject to the performance stock unit, and the remainder of the performance stock unit being cancelled.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Pierre-Yves Lesaicherre</signatureName>
        <signatureDate>2019-10-29</signatureDate>
    </ownerSignature>
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</DOCUMENT>
</SEC-DOCUMENT>
