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US 10,770,470 B2Granted
Memory array having connections going through control gates
AssigneeMicron Technology, Inc.
InventorsToru Tanzawa, Tamotsu Murakoshi, Deepak Thimmegowda
Life of this patent
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Abstract
Some embodiments include apparatuses and methods having a substrate, a memory cell string including a body, a select gate located in a level of the apparatus and along a portion of the body, and control gates located in other levels of the apparatus and along other respective portions of the body. At least one of such apparatuses includes a conductive connection coupling the select gate or one of the control gates to a component (e.g., transistor) in the substrate. The connection can include a portion going through a portion of at least one of the control gates.
Claims14
An apparatus comprising:
- a substrate;
- a memory cell string including a body;
- a first control gate located in a first level of the apparatus and along a first portion of the body;
- a second control gate located in a second level of the apparatus and along a second portion of the body;
- and
- a connection coupled to the second control gate and to a transistor, the transistor having at least a portion formed in the substrate, the connection including a first portion going through a first portion of the first control gate, and a second portion going through a second portion of the first control gate.
3 more elements
An apparatus comprising:
- a substrate;
- a memory cell string including a body;
- a first control gate located in a first level of the apparatus and along a first portion of the body;
- a second control gate located in a second level of the apparatus and along a second portion of the body;
- a connection coupled to the second control gate and to a transistor, the transistor having at least a portion formed in the substrate, the connection including a portion going through a portion of the first control gate;
- an opening through the first control gate, wherein the portion of the connection going through the portion of the first control gate is inside the opening;
- a third control gate located in a third level of the apparatus and along a third portion of the body;
- and
- an additional connection coupled to the third control gate and to an additional transistor, the additional transistor having at least a portion formed in the substrate, the additional connection including a portion going through an additional opening in the first control gate.
6 more elements
An apparatus comprising:
- a substrate;
- a memory cell string including a body;
- a first control gate located in a first level of the apparatus and along a first portion of the body;
- a second control gate located in a second level of the apparatus and along a second portion of the body;
- and
- a connection coupled to the second control gate and to a transistor, the transistor having at least a portion formed in the substrate, the connection including a portion going through a portion of the first control gate, further comprising a third control gate located in a third level of the apparatus and along a third portion of the body, wherein the connection includes another portion going through a portion of the third control gate.
3 more elements
An apparatus comprising:
- a first control gate and a second control gate in different levels of a device over a substrate of the device;
- a first opening in a first area of the device between an edge of the first control gate and an edge of the second control gate;
- a second opening in a second area of the device between the edge of the first control gate and the edge of the second control gate;
- a connection coupling the second control gate to a conductive contact located between the substrate and the first control gate, wherein a first portion of the connection is inside the first opening, and a second portion of the connection is inside the second opening.
1 more element
An apparatus comprising:
- a first control gate and a second control gate in different levels of a device over a substrate of the device;
- an opening in an area of the device between an edge of the first control gate and an edge of the second control gate;
- and
- a connection coupling the second control gate to a conductive contact located between the substrate and the first control gate, wherein a portion of the connection is inside the opening, wherein the connection includes:
- a first segment coupled to the second control gate and extending in a direction perpendicular to the substrate;
- a second segment in the opening;
- and
- a third segment coupled to the first segment and the second segment.
5 more elements
An apparatus comprising:
- a first group of control gates and a second group of control gates on different levels of a device over a substrate of the device;
- an opening through the first group of control gates;
- and
- a connection coupling a control gate in the second group of control gates to a conductive contact located between the first and second groups of control gates and the substrate, wherein the connection includes a portion inside the opening.
1 more element
Dependencies are inferred from the claim text.