Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...
Reexamination Certificate
2005-02-15
2005-02-15
Lee, Eddie (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Field effect device in non-single crystal, or...
C257S059000, C257S347000, C257S309000, C257S057000, C257S052000, C257S053000, C257S083000
Reexamination Certificate
active
06855957
ABSTRACT:
A TFT is manufactured using at least five photomasks in a conventional liquid crystal display device, and therefore the manufacturing cost is high. By performing the formation of the pixel electrode, the source region and the drain region by using three photomasks in three photolithography steps, a liquid crystal display device prepared with a pixel TFT portion, having a reverse stagger type n-channel TFT, and a storage capacitor can be realized.
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Koyama Jun
Yamazaki Shunpei
Costellia Jeffrey L.
Lee Eddie
Lee Eugene
Nixon & Peabody LLP
Semiconductor Energy Laboratory Co,. Ltd.
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