# SJ Semiconductor (Jiangyin)

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sj-semiconductor-jiangyin

- Industry: Electronics
- Headquarters: Jiangyin, China
- Website: www.sjsemi.com
- Total disclosed funding: $640M
- Latest round: Series C (Mar 29, 2023)
- Investors on record: 26

## About

Established in 2014 and based in Suzhou, China, SJ Semiconductor (Jiangyin) Corp. is a chip manufacturing company that focuses on providing mid-range wafer manufacturing and testing services. It was recognized as the National High-tech Enterprise. Dong Cui, the chairman and CEO of the company, graduated from Tongji University, with 18 years of working experience in the semiconductor industry. The company has branches located in Shanghai and Silicon Valley and 35,000 square meters of purification workshop. It acquired certifications such as the ISO45001, IATF16949, and IATF16949. In December 2024, SJ Semiconductor (Jiangyin) Corp. raised a venture funding for USD 700 million.

The company provides mid-range wafer fabrication and testing services. Its products include wafer bumping, CP test, WLCSP and SmartPoser™ technology platform. SmartPoser™ provides a 5G millimeter wave antenna chip wafer-level integrated packaging process technology. Products can be used in smartphones, network communication, high-performance computing, data centers, and other fields.

The company generates revenue by providing mid-range wafer fabrication and testing services.

The company will use the venture funding for the construction of ultra-high-density three-dimensional multi-chip interconnection integrated processing projects.

## Funding rounds

- Series C, Mar 29, 2023, $340M — Legend Capital, Oriza Holdings, Goldstone Capital, TCL Capital, Yuanhe Puhua Suzhou Management, INCE Capital, Lifeng Investment, Shang Qi Capital, Zhongxin Xicheng, Xiamen Junju Pu Jian Investment Management
- Series C, Mar 16, 2022, $192M — Walden Catalyst, High Tech Private Equity, GP Capital, Oriza Holdings, China International Capital Corporation, CITIC Securities, CMB International Asset Management, CCB Trust Co., Ltd., Shenzhen Capital Real Estate Fund, CCB Private Equity Investment Management, Oriza Rivertown, Shenzhen Country Garden Venture Capital Co., Ltd.
- Series C, Oct 8, 2021, $108M — Walden Catalyst, CDIB Capital Group, High Tech Private Equity, GP Capital, Oriza Holdings, China Construction Bank, CCB Trust Co., Ltd., Oriza Rivertown, Shenzhen Country Garden Venture Capital Co., Ltd.
- Series A, Nov 12, 2015 — Qualcomm Ventures, Semiconductor Manufacturing International Corporation, China Integrated Circuit Investment Industry Fund

## Investors

- Qualcomm Ventures (https://capitalatlas.ai/funds/qualcomm-ventures) — Series A
- Semiconductor Manufacturing International Corporation — Series A
- China Integrated Circuit Investment Industry Fund — Series A
- Walden Catalyst (https://capitalatlas.ai/funds/walden-catalyst) — Series C
- CDIB Capital Group (https://capitalatlas.ai/funds/cdib-capital-group) — Series C
- High Tech Private Equity (https://capitalatlas.ai/funds/high-tech-private-equity) — Series C
- GP Capital (https://capitalatlas.ai/funds/gp-capital) — Series C
- Oriza Holdings (https://capitalatlas.ai/funds/oriza-holdings) — Series C
- China Construction Bank — Series C
- CCB Trust Co., Ltd. — Series C
- Oriza Rivertown — Series C
- Shenzhen Country Garden Venture Capital Co., Ltd. — Series C
- China International Capital Corporation (https://capitalatlas.ai/funds/china-international-capital-corporation) — Series C
- CITIC Securities — Series C
- CMB International Asset Management (https://capitalatlas.ai/funds/cmb-international-asset-management) — Series C
- Shenzhen Capital Real Estate Fund (https://capitalatlas.ai/funds/shenzhen-capital-real-estate-fund) — Series C
- CCB Private Equity Investment Management (https://capitalatlas.ai/funds/ccb-private-equity-investment-management) — Series C
- Legend Capital — Series C
- Goldstone Capital — Series C
- TCL Capital (https://capitalatlas.ai/funds/tcl-capital) — Series C
- Yuanhe Puhua Suzhou Management (https://capitalatlas.ai/funds/yuanhe-puhua-suzhou-management) — Series C
- INCE Capital (https://capitalatlas.ai/funds/ince-capital) — Series C
- Lifeng Investment — Series C
- Shang Qi Capital (https://capitalatlas.ai/funds/shang-qi-capital) — Series C
- Zhongxin Xicheng — Series C
- Xiamen Junju Pu Jian Investment Management — Series C