Switch device and storage unit

US10804321B2 · kind B2 · utility

Assignee

• SONY SEMICONDUCTOR SOLUTIONS CORPORATION · JP

Inventors

• Kazuhiro Ohba · Rifu, JP
• Hiroaki Sei · Yokohama, JP
• Seiji Nonoguchi · Yokohama, JP
• Takeyuki Sone · Rifu, JP
• Minoru Ikarashi · Yokohama, JP

Key dates

• Filing date: Aug 7, 2019
• Grant date: Oct 13, 2020
• Expiry date: Aug 7, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N70/8833

Abstract

A switch device according to an embodiment of the technology includes a first electrode, a second electrode that is disposed to face the first electrode, and a switch layer that is provided between the first electrode and the second electrode. The switch layer contains a chalcogen element. The switch layer includes a first region and a second region which have different composition ratios of one or more of chalcogen elements or different types of the one or more of chalcogen elements. The first region is provided close to the first electrode. The second region is provided closer to the second electrode than the first region.