SJ Semi Company

SJ Semi is a MEOL foundry focused on front-end wafer manufacturing and quality systems. The company specializes in bumping, Cu pillar, RDL, and testing services for 12" wafers while investing in R&D for fan-out, TSV, interposer, and 3D technologies. With over a decade of experience, SJ Semi aims to support advancements in the semiconductor market.

Total Funding: 1620000000
Founded Date: 2014-08-01
Industry: Hardware
Employee Number: 11-50
Last Funding Date: 2026-04-15
Funding Status: private
Headquarters: Jiangyin,Jiangsu,China,Asia
Super Industry: Quantum Computing
Funding Total Value: 1620000000