Conduct design and development of image sensor technologies, work on transistor level design of analog and mixed-signal circuits for CMOS Image Sensor such as asic_pixel array, column-amplifier, comparator, ramp generator, ASRAM and XDEC by using Cadence Virtuoso; Work on whole chip floorplan design and pad frame; Work on analog and mixed signal circuits layout design by Cadence Virtuoso, such as column_array; Collaborate with layout engineer on whole chip layout integration and improvement by Cadence Virtuoso; Perform sub-blocks and whole image sensor readout circuit simulation by simulators such as Analog FastSPICE (AFS), Empyrean ALPS and NanoSpice; Perform design verification such as DRC, LVS, PERC check by using Siemens Calibre; Perform whole chip IR drop check by using Ansys Totem; Conduct script modification using Perl programming language; Collaborate with Digital Engineer to define and design the analog to digital interface; Collaborate with verification, process, test, and application engineers to debug, characterize and optimize performance of fabricated image sensors; Analyze project-specific specifications, such as speed, linearity, noise, power consumption, etc, and improve circuit designs or implement innovative solutions to meet performance requirements; Define corners based on chip operating conditions, ensuring the chip meets specifications and operates reliably with sufficient margin for robustness under all conditions; Propose innovative and creative solutions along with new circuit R&D and be ahead of current technology. Require knowledge or skills of:• Analyze analog and mixed-signal circuits; troubleshoot and resolve circuit issues; • Design analog/mixed-signal circuits based on specifications; optimize for higher performance; • Perform circuit simulations using tools such as Cadence Spectre or HSPICE; • Understand layout impact on circuit performance; apply layout strategies to minimize adverse effects; • Knowledge of semiconductor device physics and its influence on circuit behavior; • Analyze and mitigate thermal, flicker, and shot noise in analog designs; • Knowledge of integrated circuit fabrication processes and incorporating process variation considerations into schematic and layout design.