Cumsumi Semiconductor International (CSI) is a joint venture established by Taiwan Make Chance Corp.and Shanghai Jinquan Electronic Technology Co.,Ltd.

CSI is one of the leading professional manufacturer of diodes,bridge rectifiers and mosfet transistors in China.CSI have passed ISO9001:2008 Quality Certificate.
Besides,we have reached the standard of Reach Report of SVHC and RoHS Compliant.The bridge rectifier will pass the UL certificate at the end of 2011.

CSI main products include series of diodes with GPP(Glass Passivated Process) technology,bridge rectifier and some mosfet transistors.The manufacturing of GPP wafers(Glass Passivated Junction) located in the I-Lan County,Taiwan.

Cumsumi brand GPP wafers have wide application in the super/ultra fast recovery rectifiers,TVS diodes (Transient Voltage Suppressors) and bridge rectifiers.The high quality and good after-service have been approved by domestic and inter-national market.