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Welcome to CI Semi

CI Semi, a division of CI Systems LTD, develops, manufactures and markets process monitoring and control systems for the semiconductor, solar PV, LED and FPD markets. Active in the semiconductor process equipment market since 1992, CI offers non contact wafer temperature monitors and wet process concentration monitors to OEMs and to end users. CI Semi's family of noncontact temperature monitors (the NTM line), incorporate real-time, same point emissivity measurement and compensation making them the ideal solution for in situ process monitoring. CI’s family of wet process analyzers (WetSpec line)  includes a range of monitors -  from conductivity and NDIR solutions for concentration measurement in simple chemistries, to spectroscopic systems for measuring multiple constituents and residues in complex solutions.

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CI-Semi Solutions and Applications


CI-SEMI’s in-line, multi-channel wet process analysis system, WetSpec 200 enables non-contact real-time monitoring and closed-loop control of chemical composition in wet process applications


NTM Delta

The NTM Delta is the only high accuracy and repeatability pyrometer which incorporates both real-time same-point emissivity and temperature measurement.



The NTM-W is an infrared radiometer, optimized for temperature measurement of opaque targets starting from below room temperature.



The NTM VLT4 is is a non-contact electro-optical temperature monitor based on the measurement of temperature-dependent optical characteristics of semiconductor wafers



CI -SEMI's in- line, wet process analysis system, the WetSpec201, enables non-contact real - time monitoring and closed- loop control of chemical composition in wet process applications.