A cryogenic mixed-signal process for radiation-hardened applications

Signal processing and A/D conversion for cryogenic applications places severe demands on the silicon fabrication process used to implement these functions, particularly in ionizing radiation environments. We describe a process designed for cryo applications such as high-energy collider front-end electronics, with specific optimization in the areas of noise, radiation hardness and predictable operation at 77 K. Applications of the technology are reviewed together with device issues and radiation test results.<
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