IP Library Granted Patent US 8,389,973
Granted Patent B2
US 8,389,973 · App. 12/975,997 · Granted Mar 5, 2013

Memory using tunneling field effect transistors

Inventor: Thomas Nirschl (Essex Junction, VT)
Assignee: Qimonda AG
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Quick Facts
Patent No.
US 8,389,973
App. No.
12/975,997
Granted
Mar 5, 2013
Kind
B2
Abstract

A memory includes a first tunneling field effect transistor including a first drain and a first source, the first drain coupled to a first resistive memory element. The memory includes a second tunneling field effect transistor including a second drain and sharing the first source, the second drain coupled to a second resistive memory element. The memory includes a first region coupled to the first source for providing a source node.

Claims (32)

1. A memory comprising:

a first tunneling field effect transistor including a first drain and a first p+ doped source, the first drain coupled to a first resistive memory element;

a second tunneling field effect transistor including a second drain and a second p+ doped source, the second drain coupled to a second resistive memory element; and

a p+ doped region coupled to the first p+ doped source and the second p+ doped source,

wherein the p+ doped region directly contacts the first p+ doped source.

2. The memory of claim 1 , wherein the first resistive memory element comprises a phase change memory element.

3. The memory of claim 1 , wherein the first resistive memory element comprises one of a conductive bridging memory element, an electrolyte memory element, and a magnetic memory element.

4. The memory of claim 1 , wherein the p+ doped region comprises a ground plate.

5. A memory comprising:

a substrate;

a first tunneling field effect transistor and a second tunneling field effect transistor sharing a p+ doped source;

a first phase change memory element coupled to an n+ doped drain of the first tunneling field effect transistor;

a second phase change memory element coupled to an n+ doped drain of the second tunneling field effect transistor; and

a p+ region within the substrate coupled to the source to provide a source node.

6. The memory of claim 5 , further comprising:

a bit line coupled to the first phase change memory element; and

a word line coupled to a gate of the first tunneling field effect transistor.

7. A memory comprising:

a substrate;

a first tunneling field effect transistor and a second tunneling field effect transistor sharing a p+ doped source;

a first phase change memory element coupled to an n+ doped drain of the first tunneling field effect transistor;

a second phase change memory element coupled to an n+ doped drain of the second tunneling field effect transistor; and

a p+ region within the substrate coupled to the source to provide a source node,

wherein the p+ region directly contacts the source.

8. The memory of claim 7 , further comprising:

a bit line coupled to the first phase change memory element; and

a word line coupled to a gate of the first tunneling field effect transistor.

9. A memory comprising:

a first tunneling field effect transistor including a first drain and a first doped source, the first drain coupled to a first resistive memory element;

a second tunneling field effect transistor including a second drain and a second doped source, the second drain coupled to a second resistive memory element; and

a doped region coupled to the first doped source and the second doped source,

wherein the doped region directly contacts the first doped source.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2015
From: QIMONDA AG
To: INFINEON TECHNOLOGIES AG
Reel/Frame 035623/0001 →
Continuity (2)
Continuation 11438450 · May 22, 2006
Related Publication 20110089392A1 · Apr 21, 2011