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Sunday, April 14, 2019

#403 Image sensing relies entirely on semiconductors

The image sensing devices are designed to capture light representing image and to convert it into electrical signal. The image sensors are at the core of any imaging device such as digital still cameras, digital video cameras, mobile devices, medical, surveillance, scientific, and broadcast instrumentation and many others we rely on so heavily in our daily lives.


The message here is that the image sensing devices are operating based on the physical properties of semiconductors and are manufactured using semiconductor materials. As a result, imaging devices constitute an important segment of commercial semiconductor technology. Two the most important types of semiconductor imaging devices are both based on the physical properties of the MOS (Metal-Oxide-Semiconductor) structure. First, involves CCD (Charge Coupled Devices) image sensors. Second, CMOS (Complementary MOS) image sensors. Quite interestingly this is fundamentally the same MOS structure upon which logic cells constituting all important digital integrated circuits are constructed. Equally interesting is the fact that the silicon is a semiconductor material used to fabricate both types of devices.

Posted by Jerzy Ruzyllo at 10:36 AM | Semiconductors | Link is a personal blog of Jerzy Ruzyllo. He is Distinguished Professor Emeritus in the Department of Electrical Engineering at Penn State University. With over forty years' experience in academic research and teaching in semiconductor engineering he has a unique perspective on the developments in this technical domain and enjoys blogging about it.

This book gives a complete account of semiconductor engineering covering semiconductor properties, semiconductor materials, semiconductor devices and their uses, process technology, fabrication processes, and semiconductor materials and process characterization.

With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.


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