%0 Journal Article
%T The Image Transceiver Device: Studies of Improved Physical Design
%A Yitzhak David
%A Uzi Efron
%J Sensors
%D 2008
%I MDPI AG
%R 10.3390/s8074350
%X The Image Transceiver Device (ITD) design is based on combining LCOS micro-display, image processing tools and back illuminated APS imager in single CMOS chip [1]. The device is under development for Head-Mounted Display applications in augmented and virtual reality systems. The main issues with the present design are a high crosstalk of the backside imager and the need to shield the pixel circuitry from the photocharges generated in the silicon substrate. In this publication we present a modified, ˇ°deep p-wellˇ± ITD pixel design, which provides a significantly reduced crosstalk level, as well as an effective shielding of photo-charges for the pixel circuitry. The simulation performed using Silvaco software [ATLAS Silicon Device Simulator, Ray Trace and Light Absorption programs, Silvaco International, 1998] shows that the new approach provides high photo response and allows increasing the optimal thickness of the die over and above the 10-15 micrometers commonly used for back illuminated imaging devices, thereby improving its mechanical ruggedness following the thinning process and also providing a more efficient absorption of the long wavelength photons. The proposed deep p-well pixel structure is also a technology solution for the fabrication of high performance back illuminated CMOS image sensors.
%K head-mounted display
%K CMOS imager
%K back illuminated APS
%K crosstalk
%K photoactivation
%K Smart-Goggle.
%U http://www.mdpi.com/1424-8220/8/7/4350