    <SEC-DOCUMENT>0000056978-21-000018-index.html : 20210113
    <SEC-HEADER>0000056978-21-000018.hdr.sgml : 20210113
    <ACCEPTANCE-DATETIME>20210113063142
    ACCESSION NUMBER:		0000056978-21-000018
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20210113
    DATE AS OF CHANGE:		20210113

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			KULICKE & SOFFA INDUSTRIES INC
    		CENTRAL INDEX KEY:			0000056978
    		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
    		IRS NUMBER:				231498399
    		STATE OF INCORPORATION:			PA
    		FISCAL YEAR END:			1003

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-00121
    		FILM NUMBER:		21525032

    	BUSINESS ADDRESS:
    		STREET 1:		23A SERANGOON NORTH AVENUE 5, #01-01
    		CITY:			SINGAPORE
    		STATE:			U0
    		ZIP:			554369
    		BUSINESS PHONE:		2157846000

    	MAIL ADDRESS:
    		STREET 1:		23A SERANGOON NORTH AVENUE 5, #01-01
    		CITY:			SINGAPORE
    		STATE:			U0
    		ZIP:			554369
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    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>a2020defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
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    <SEQUENCE>2
    <FILENAME>image1.jpg
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>image2.jpg
    <TEXT>
    Document 3 - file: image2.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image3.jpg
    <TEXT>
    Document 4 - file: image3.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image4.jpg
    <TEXT>
    Document 5 - file: image4.jpg

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