Sharp Kabushiki Kaisha Corporation

Yasuaki Murata

Atsushi Yoshinouchi

Tatsuo Morita

Shuhei Tsuchimoto

Atsushi Yoshinouci

A semiconductor device includes: a substrate; a line formed on the substrate; and a crystalline semiconductor film containing silicon connected to the line. The crystalline semiconductor film is crystallized by annealing where a constituting material of the line functions as a catalyst.

Semiconductor device, thin film transistor and method for producing the same, and liquid crystal display apparatus and method for producing the same

Semiconductor device, thin film transistor having an active crystal

A method of fabricating a thin-film transistor, includes the step of forming a source region and a drain region in a semiconductor thin film having a capping film thereon, by accelerating a plasma source including hydrogen ions and one of Group III ions and Group V ions of the Periodic table, and simultaneously implanting the hydrogen ions and one of the Group III ions and the Group V ions into the semiconductor thin film, wherein there exist a plurality of peaks in a depth profile of a concentration of the hydrogen ions implanted into the semiconductor thin film having the capping film thereon and a second peak from a surface of the capping film among the plurality of the peaks is made to exist in the semiconductor thin film.

Method of fabricating a thin-film transistor and liquid-crystal display

A method for producing a polycrystalline semiconductor film is disclosed. The method includes the steps of: forming a semiconductor film on a substrate; forming a passivation film on the semiconductor film; exciting a mixed gas including hydrogen and at least one element selected from the group consisting of the III, IV, and V groups of the periodic table to generate hydrogen ions and ions of the at least one element; and implanting the hydrogen ions into the semiconductor film through the passivation film and simultaneously implanting the ions of the at least one element into the semiconductor film through the passivation film, thereby changing the semiconductor film into a polycrystalline semiconductor film having the at least one element.

Growing community of inventors

Nara, Japan

Yasuaki Murata