CODING INTERNATIONAL CO LTD

ON Semiconductor has collaborated with Teledyne Imaging Sensors to manufacture an incredibly Large Stitched Readout Integrated Circuit(ELS ROIC) for astronomy. The H4RG-15 image indicator, designed by Teledyne, is the most current generation of a 20-year effort sponsored by the National Science Foundation, the nation’s Aeronautics and Space Management, and Teledyne internal funding to develop increasingly much larger and more powerful infrared sensors for astronomical research.

The 16 megapixel H4RG-15, which consists of Teledyne’s HgCdTe detector content hybridized to a CMOS readout circuit, is the largest sensor ever before produced for infrared astronomy. An enabling technology from the development of the H4RG-15 may be the ability to fabricate in addition to reliably yield this 63 mm a 63 mm attached CMOS ROIC using ON Semiconductor’s little-known 180 nanometer process engineering. The ROIC is so large that only four die suit onto a 200 mm wafer.

The high generate for these ELS ROICs is usually attributed to the expertise and yield enhancement efforts made by ON Semiconductor’s wafer fabrication team in collaboration with its Custom Foundry Division. The H4RG-15 readouts were manufactured in ON Semiconductor’s wafer manufacturing facility found in Gresham, Oregon. With this project, ON Semiconductor has demonstrated that it may successfully produce the H4RG-15 with the yield required for this next generation sensor.

The actual H4RG-15 has been mounted at the University regarding Hawaii’s observatory on Mauna Kea to make sure that the performance with the sensor under telescope observing conditions. “The resolution in which images can be seized using this new sensing unit system represents a major step forward in the progression of IR astronomy,” mentioned Dr. Donald Area of the Institute with regard to Astronomy at the University of Hawaii, who is the principal investigator for the NSF-funded H4RG-15 growth program.

The H4RG-15 sensor is the next step in the highly successful HxRG family of image sensors which Teledyne has developed and sent to the leading astronomical observatories, on ground and in space, including the Hubble Space Telescope, the actual James Webb Space Telescope, and each major ground-based observatory.