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PROJECT
DESCRIPTION:
The present invention relates to a novel polysilicon material,
novel polysilicon based electronic devices, and the fabrication
methods therefore. In particular, the invention relates to a
novel metal induced lateral crystallization polysilicon (MILC
poly-Si) fabrication technique that may be employed in a wide
range of semiconductor devices. After MILC, re-crystallization
is performed at high temperature in an inert ambient.
Significant improvement in material quality results from the
thermal treatment. High temperature re-crystallized MILC poly-Si
can be applied to (i) devices for sensors, and (ii) TFTs for
flat panel displays (FPDs) and 3-dimensional integrated
circuits. Potential Applications: - Most poly-Si-based sensors -
Transmissive flat panel displays (FPDs) on quartz - Other
high-temperature compatible transparent substrate - Non-transmissive
displays on poly-Si - Other high-temperature compatible opaque
substrate - Integrated sensors and display systems on poly-Si
substrates - Examples: resistor, piezo-resistor, thermistor,
pressure sensor, temperature sensor, photodetector, infrared
sensor, transistor, ¡K etc. Advantages over Present
Technologies: 1. Realization of integrated sensor and non-transmissive
display systems on inexpensive bulk poly-Si or other
high-temperature compatible substrates using the significantly
improved material and device quality of re-crystallized MILC
poly-Si. 2. Low-cost batch process 3. Better quality poly-Si
thin films can be obtained 4. Limits processing temperature 5.
No special requirement on the surface planarity of the
underlying oxide 6. Sensors with higher sensitivity, lower
temperature instability 7. TFTs with improved electrical
properties
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KEYWORDS: sensor,
panel display, transparent substrate, high-temperature,
resistor, thermistor, photodetector,
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