Semiconductor display device and method of manufacturing the...

Semiconductor device manufacturing: process – Having biomaterial component or integrated with living organism

Reexamination Certificate

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C257SE21413, C438S149000, C438S151000, C438S164000, C438S166000

Reexamination Certificate

active

07615384

ABSTRACT:
A method of manufacturing a semiconductor device with the use of a laser crystallization method is provided which can prevent grain boundaries from being formed in a channel forming region of a TFT and which can avoid substantial reduction in TFT mobility, reduction in on current, and increase in off current due to the grain boundaries, and a semiconductor device manufactured by using the manufacturing method is also provided. Stripe shape or rectangular shape unevenness is formed only in a driver circuit. Continuous wave laser light is irradiated to a semiconductor film formed on an insulating film along the stripe unevenness of the insulating film or along a major axis or minor axis of the rectangular unevenness. Although it is most preferable to use the continuous wave laser light at this point, pulse wave laser light may also be used.

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