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US 9,543,512 B2Granted
Switch device and storage unit
AssigneeSony Semiconductor Solutions Corporation
InventorsKazuhiro Ohba, Hiroaki Sei
Life of this patent
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Abstract
A switch device includes: a first electrode; a second electrode arranged to face the first electrode; and a switch layer provided between the first electrode and the second electrode. The switch layer includes a first layer containing a chalcogen element, and a second layer containing a high resistance material.
Claims19
A switch device comprising:
- a first electrode;
- a second electrode arranged to face the first electrode;
- and
- a switch layer provided between the first electrode and the second electrode,
- the switch layer including
- a first layer containing a chalcogen element, and
- a second layer containing a high resistance material,
- wherein the second layer includes a first portion in contact with a first surface of the first layer, and a second portion in contact with a second surface of the first layer opposite the first surface, and
- wherein the second electrode is in contact with a storage layer including a resistance variation layer and an ion source layer that contains one or more chalcogen elements selected from tellurium (Te), sulfur (S), and selenium (Se).
6 more elements
A storage unit comprising
- a plurality of memory cells each including a first electrode, a second electrode arranged to face the first electrode, a storage device and a switch device configured to be connected to the storage device,
- the switch device including
- a switch layer provided between the first electrode and the second electrode, the switch layer including
- a first layer containing a chalcogen element, and
- a second layer containing a high resistance material,
- the storage device including a storage layer between the first electrode and the second electrode, and
- the storage layer including an ion source layer and a resistance variation layer, wherein the ion source layer contains one or more chalcogen elements selected from tellurium (Te), sulfur (S), and selenium (Se).
4 more elements
Dependencies are inferred from the claim text.