Request InfoVerity Instruments Inc.CARROLLTON, Texas, June 28, 2011 — Verity Instruments Inc. has released its next-generation spectrographs, the SD1024G series, direct replacements for the SD1024F. The instruments feature significantly reduced system noise, providing improved end-pointing capability in moderate-to-low-light applications. The spectrographs are designed for demanding semiconductor process control applications such as low exposed area contact etch, ion beam etch and photomask etch. They can be used within a spectral reflectometer for film thickness or depth measurement. Their 200- to 800-nm spectral-range optical system employs a...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra September 2022 IssueLight-Dependent Resistor PhotocellsCadmium Sulfide (CdS) Light-Dependent Resistors (LDRs) from Advanced Photonix Inc. are designed for visible light measurement from 400 to 700 nm. 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For the...PHOTONICS BUYERS' GUIDE CATEGORIESBlazed GratingsOptical Strain Measurement GaugesEUV/XUV SpectrometersIonization GaugesAn ionization gauge is a type of radiation detector that depends on the ionization produced in a gas by the passage of a charged particle through it. 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