CHIPMOS TECHNOLOGIES INC
Close on Oct 19, 2026
About Chipmos Technologies
Semiconductors & Related Devices, SIC 3674
ChipMOS TECHNOLOGIES INC. provides outsourced semiconductor back-end assembly and testing services, wafer bumping, and memory module manufacturing. The company offers testing, packaging assembly, bumping, and display driver assembly and testing services. Its testing operations include wafer probing and final testing for memory devices such as SRAM, DRAM, and flash, as well as logic and mixed-signal semiconductors. Assembly capabilities encompass leadframe-based and organic substrate-based packaging formats. The company serves semiconductor designers and manufacturers, including integrated device manufacturers and fabless semiconductor companies, whose chips power personal computers, mobile devices, consumer electronics, communications equipment, automotive displays, and industrial systems.
The company is headquartered at the Hsinchu Science Park in Hsinchu, Taiwan. Its production operations take place across manufacturing facilities situated in Hsinchu and Tainan, Taiwan. Beyond its domestic presence, the company maintains international subsidiaries that conduct marketing activities for semiconductor products across the United States and Mainland China.
Summary of the business section of Chipmos Technologies's latest annual report, written by StockData.
Company profile
Company
- Legal name
- CHIPMOS TECHNOLOGIES INC
- Founded
- 1997
- Headquarters
- Taiwan, F5
- Address
- No. 1, R & D Road 1, Hsinchu Science Park, Hsinchu 00000
- Phone
- 866-3-5770055
- Website
- chipmos.com
- Employees
- 651, Dec 31, 2025
- Industry
- Semiconductors & Related Devices
- Incorporated in
- F5
- Fiscal year ends
- December 31
- Auditor
- PricewaterhouseCoopers, Taiwan, Taipei, Taiwan
Stock & identifiers
- Ticker
- IMOS
- Exchange
- Nasdaq
- Shares outstanding
- 700M, Dec 31, 2025
- Filer category
- Large accelerated filer
- Stock splits
- 1-for-4 reverse, Jan 24, 2011
- SEC CIK
- 1123134
- CUSIP
- 16965P202
- ISIN
- US16965P2020
- EIN
- 00-0000000
Executives and directors
Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years
| Name | Position | Shares owned |
|---|---|---|
| Shih Jye Cheng | President, Director | 12,404,938 |
| Yu-Chiao Su | Vice President, Director | 1,176,101 |
| Yuan-Feng Hsu | Executive Vice President | 230,130 |
| Teng-Yueh Tsai | Executive Vice President | 1,092,572 |
| Pao-Hsin Chang | Director | – |
| Yeong-Her Wang | Director | – |
| Kun-Yi Chien | Director | – |
| Jyh-Chau Wang | Director | – |
| Yuh-Fong Tang | Director | – |
| Fu-Chen Lin | Director | – |
| Hong-Tzer Yang | Director | – |
Employees
Headcount reported in annual reports
“As of February 28, 2026 we employed 651 employees in our research and development activities.”
Corporate history
Events identified from SEC filings
| Date | Event | Details |
|---|---|---|
| Oct 24, 2016 | Listing | Registration of securities on an exchange (Form 8-A) |
| Feb 26, 2016 | Merger | Registration of securities for a merger or exchange offer (S-4) |