Taiwan Semiconductor Manufacturing Comp. Ltd.

Yen-Lin Liu

Chien-Yuan Lee

Sheng-Fang Cheng

Chen-Chih Wu

Huan-Neng Chen

Bo-Ting Chen

Chia-Wei Hsu

Shao-Yu Li

Chang-Fen Hu

Jo-Yu Wu

Kuo-Ji Chen

Tzu-Yi Yang

A circuit includes a voltage divider circuit configured to generate a feedback voltage according to an output voltage, an operational amplifier configured to output a driving signal according to the feedback voltage and a reference voltage and a pass gate circuit including multiple current paths. The current paths are controlled by the driving signal and connected in parallel between the voltage divider circuit and a power reference node.

Low dropout regulator circuits, input/output device, and methods for operating a low dropout regulator

Among other things, one or more semiconductor arrangements and techniques for forming such semiconductor arrangements are provided. A semiconductor arrangement comprises a first guard ring surrounding at least a portion of a device, and a first poly layer formed over the first guard ring.

Guard ring structure of semiconductor arrangement

An RC triggered ESD protection device comprises a discharge transistor, a driver circuit and a trigger circuit. The trigger circuit comprises a plurality of native NMOS transistors connected in parallel with a plurality of PMOS transistors operating as resistors. The relatively small resistance of the plurality of native NMOS transistors helps to keep a stable RC time constant value so that the ESD protection device can avoid a leakage current during a power up operation.

RC triggered ESD protection device

Growing community of inventors

Taichung, Taiwan

Yen-Lin Liu