A SONOS memory cell is formed from a standard polysilicon NMOS transistor with the addition of a small sliver of silicon nitride inserted inside the transistor's gate oxide. The sliver of nitride is non-conductive but contains a large number of charge trapping sites able to hold an electrostatic charge. The nitride layer is electrically isolated from the surrounding transistor, although charges stored on the nitride directly affect the conductivity of the underlying transistor channel. The oxide/nitride sandwich typically consists of a 2 nm thi ....etc

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Existing cathode ray tube (CRT) projectors have limitations in regard to resolution and luminance. This shortcoming has been offset by recently developed liquid crystal display (LCD) projectors or digital light processor (DLP) projectors.liquid crystal on silicon (LCOS) provides higher sharpness, resolution and luminance compared to the CRT, and thus, provides better image quality. the LCOS has a light-reflective structure in which pixel electrodes are arranged on a silicon substrate, causing light emitted from a lamp to reflect.The reflective ....etc

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please read http://seminarsprojects.net/Thread-Liquid-Crystal-on-Silicon-Display-LCOS

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To get full information or details of silicon oxide nitride oxide silicon please have a look on the pages

http://seminarsprojects.net/Thread-silicon-oxide-nitride-oxide-silicon-memmory-sonos

if you again feel trouble on silicon oxide nitride oxide silicon please reply in that page and ask specific fields in silicon oxide nitride oxide silicon ....etc

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Abstract:
reflective cholesteric liquid crystal displays (Ch-LCDs) because they are lightweight, low power flat-panel displays. Furthermore, Ch-LCDs can be made bistable which allows for the manufacture of large area, high- resolution displays without the need for expensive, difficult to manufacture active matrix addressing schemes. Also, the bistability enables flicker-free operation. Currently, these displays are made using glass substrates. However, some applications require rugged (i.e., nonbreakable), flexible displays. The use of a plas ....etc

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lcos display lcos display lcos display lcos display ppt
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liquid-crystal displays (LCDs)



INTRODUCTION

LED-based moving-message displays are becoming popular for transmitting information to large groups of people quickly. These can be used indoors or outdoors. We can find such displays in areas like railway platforms, banks, public offices, hotels, training institutes, nightclubs and shops.
Compared to LEDs, liquid-crystal displays (LCDs) are easy to interface with a microcontroller for displaying information as these have many ....etc

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VAN LCOS Microdisplays
LCOS Microdisplays . LCOS (Liquid Crystal on Silicon) is a reflective microdisplay technology
based on a Silicon backplane. The electronic circuits controling the liquid crystals are fabricated on a silicon chip, which is coated with a highly reflective surface. The evolution of the vertically aligned nematic (VAN)
LCOS is discussed here. It was a notoriously difficult
technology but it has eevolved to be the mainstream microdisplay
technology available today. a
number of issues and concerns are still ....etc

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