XML 23 R7.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

History and Organization | 12 Months Ended
--- | ---
Dec. 31, 2023
History And Organization [Abstract] |
History and Organization |
1. | HISTORY AND ORGANIZATION
United Microelectronics Corporation (UMC) was incorporated in Republic of China (R.O.C.) in May 1980 and commenced operations in April 1982. UMC is a full service semiconductor wafer foundry, and provides a variety of services to satisfy customer needs. UMC’s ordinary shares were publicly listed on the Taiwan Stock Exchange (TWSE) in July 1985 and its American Depositary Shares (ADSs) were listed on the New York Stock Exchange (NYSE) in September 2000. The address of its registered office and principal place of business is No. 3, Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan. The principal operating activities of UMC and its subsidiaries (collectively as “the Company”) are described in Notes 4(3) and 12.

X
- Definition Disclosure in entirety of notes and other information explanatory. + References No definition available. + Details
Name: | umc_DisclosureInEntiretyOfNotesAndOtherInformationExplanatory
Namespace Prefix: | umc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition History and organization abstract. + References No definition available. + Details
Name: | umc_HistoryAndOrganizationAbstract
Namespace Prefix: | umc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration