Patent ID: 11935936
Assignee: ULVAC, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC C  H | IPC C  H

Claim 5:
6. A thin film transistor, comprising:
a gate electrode including an aluminum alloy film,
the aluminum alloy film including:
an Al pure metal that includes Zr, Se, and at least one type of a first additive element selected from the group consisting of Mo, Y, Nb, and Ti, the first additive element forming intermetallic compounds of Al;
Mn, Si, and at least one type of a second additive element selected from the group consisting of Mg and Ag, the second additive element being dissolved in Al; and
at least one type of a third additive element selected from the group consisting of Ce, Nd, La, and Gd,

a total content of Zr, Sc, and the first additive element being 0.01 atomic % or more and 1.0 atomic % or less,
a total content of Mn, Si, and the second additive element being 0.2 atomic % or more and 3.0 atomic % or less, and
a total content of the third additive element being 0.1 atomic % or more and 1.0 atomic % or less.