Tsinghua University

Vanguard International Semiconductor Corporation

Yu-Chuan Chang

Po-Yuan Tang

Hsuan-Chi Su

Sue-Lein Wang

Yang-Sen Yeh

A level shifter receives an input signal through an input terminal and converts the input signal to an output signal. The level shifter includes an input stage circuit and an output stage circuit. The input stage circuit receives the input signal. The input stage circuit includes an N-type transistor that has a gate coupled to the input terminal, a drain coupled to a first node, a source coupled to a ground, and a bulk connected to the source. The output stage circuit is coupled to an output terminal and the first node. The output stage circuit includes a P-type transistor that has a gate, a source coupled to the supply terminal, a drain coupled to the first node, and a bulk disconnected from the source. The output signal is generated at the output terminal. An inverted output signal is generated at the first node.

Level shifter

An organic amine dimmer and a method for synthesizing the same are disclosed. The method comprises the following steps: (A) mixing an iron-containing compound (e.g., FeO, FeCl), a nitrate-containing compound, oxalate acid, 4,4'-trimethylenedipiperidine (TMDP), HPO, and 2 to 8 ml of water to form a mixture; (B) heating the mixture and maintaining the mixture at 160&#xb0; C. or above for a first predetermined time; (C) cooling the mixture; and (D) placing the mixture at room temperature for a second predetermined time, to obtain an organic amine dimmer, wherein Fe(NO)can serve as the iron-containing compound as well as the nitrate-containing compound.

Growing community of inventors

Hsinchu, Taiwan

Yu-Chuan Chang