    <SEC-DOCUMENT>0000950170-24-057431-index.html : 20240510
    <SEC-HEADER>0000950170-24-057431.hdr.sgml : 20240510
    <ACCEPTANCE-DATETIME>20240510061009
    ACCESSION NUMBER:		0000950170-24-057431
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		2
    CONFORMED PERIOD OF REPORT:	20240510
    FILED AS OF DATE:		20240510
    DATE AS OF CHANGE:		20240510

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CHIPMOS TECHNOLOGIES INC
    		CENTRAL INDEX KEY:			0001123134
    		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
    		ORGANIZATION NAME:           	04 Manufacturing
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			F5
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37928
    		FILM NUMBER:		24932747

    	BUSINESS ADDRESS:
    		STREET 1:		NO. 1, R & D ROAD 1
    		STREET 2:		HSINCHU SCIENCE PARK, HSINCHU
    		CITY:			TAIWAN
    		STATE:			F5
    		ZIP:			00000
    		BUSINESS PHONE:		866-3-5770055

    	MAIL ADDRESS:
    		STREET 1:		NO. 1, R & D ROAD 1
    		STREET 2:		HSINCHU SCIENCE PARK, HSINCHU
    		CITY:			TAIWAN
    		STATE:			F5
    		ZIP:			00000
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>imos-6-k-2023_annual_rep.htm
    <DESCRIPTION>6-K
    <TEXT>
    Document 1 - file: imos-6-k-2023_annual_rep.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>imos-ex99_1.pdf
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: imos-ex99_1.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>