IP Library Granted Patent US 10,388,863
Granted Patent B2
US 10,388,863 · App. 15/452,615 · Granted Aug 20, 2019

3D memory device and structure

Inventors: Zvi Or-Bach (San Jose, CA); Deepak C. Sekar (San Jose, CA); Brian Cronquist (San Jose, CA)
Assignee: MONOLITHIC 3D INC.
H01L45/1206H01L21/76254H01L27/0688H01L27/10802H01L27/11578H01L27/249H01L27/2436H01L45/04H01L45/1226H01L45/146
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Quick Facts
Patent No.
US 10,388,863
App. No.
15/452,615
Granted
Aug 20, 2019
Kind
B2
Abstract

A 3D integrated circuit device, including: a first transistor; a second transistor; and a third transistor, where the third transistor is overlaying the second transistor and is controlled by a third control line, where the second transistor is overlaying the first transistor and is controlled by a second control line, where the first transistor is part of a control circuit controlling the second control line and third control line, and where the first transistor, the second transistor and the third transistor are all aligned to each other with less than 100 nm misalignment.

Claims (63)

1. A 3D integrated circuit device, comprising:

a first transistor;

a second transistor; and

a third transistor,

wherein said third transistor is overlaying said second transistor and is controlled by a third control line,

wherein said second transistor is overlaying said first transistor and is controlled by a second control line,

wherein said second transistor comprises either a mono-crystal or a polycrystalline channel,

wherein said second transistor is a junction-less transistor,

wherein said first transistor is part of a control circuit controlling said second control line and third control line, and

wherein said first transistor, said second transistor and said third transistor are all aligned to each other with less than 100 nm misalignment.

2. The device according to claim 1 ,

wherein said second transistor is self-aligned to said third transistor.

3. The device according to claim 1 ,

wherein said third transistor is a part of a third memory cell, said second transistor is a part of a second memory cell and said first transistor is a part of memory periphery circuits controlling said third and second memory cells.

4. The device according to claim 1 ,

wherein said second transistor is connected to said third transistor with an ohmic connection.

5. The device according to claim 1 ,

wherein at least one of said first transistors is strained for enhanced performance.

6. The device according to claim 1 ,

wherein said second transistor comprises a schottky barrier.

7. The device according to claim 1 ,

wherein said second transistor comprises a dopant segregated schottky barrier.

8. A 3D integrated circuit device, comprising:

a first transistor;

a second transistor; and

a third transistor,

wherein said third transistor is overlaying said second transistor and is controlled by a third control line,

wherein said second transistor is overlaying said first transistor and is controlled by a second control line,

wherein said second transistor comprises either a mono-crystal or a polycrystalline channel,

wherein said second transistor comprises a schottky barrier, and

wherein said first transistor, said second transistor and said third transistor are all aligned to each other with less than 100 nm misalignment.

9. The device according to claim 8 ,

wherein said second transistor is self-aligned to said third transistor.

10. The device according to claim 8 ,

wherein said third transistor is a part of a third memory cell, said second transistor is a part of a second memory cell, and said first transistor is a part of memory periphery circuits controlling said third and second memory cells.

11. The device according to claim 8 ,

wherein said second transistor is connected to said third transistor with an ohmic connection.

12. The device according to claim 8 ,

wherein said second transistor is a junction-less transistor.

13. The device according to claim 8 ,

wherein said first transistor is part of a control circuit controlling said second control line and third control line.

14. The device according to claim 8 ,

wherein said second transistor comprises a dopant segregated schottky barrier.

15. A 3D integrated circuit device, comprising:

a first transistor;

a first memory cell comprising a second transistor; and

a second memory cell comprising a third transistor,

wherein said third transistor is overlaying said second transistor and said second transistor is overlaying said first transistor,

wherein said first transistor is part of a control circuit controlling said first and second memory cell,

wherein said second transistor comprises either a mono-crystal or a polycrystalline channel,

wherein said second transistor is a junction-less transistor,

wherein said first transistor, said second transistor and said third transistor are all aligned to each other with less than 100 nm misalignment, and

wherein said second transistor is connected to said third transistor with an ohmic connection.

16. The device according to claim 15 ,

wherein said second transistor is self-aligned to said third transistor.

17. The device according to claim 15 ,

wherein said third transistor is a part of a third memory cell, said second transistor is a part of a second memory cell and said first transistor is a part of memory periphery circuits controlling said third and second memory cells.

18. The device according to claim 15 ,

wherein said second transistor is a junction-less transistor.

19. The device according to claim 15 ,

wherein said second transistor comprises a schottky barrier.

20. The device according to claim 1 ,

wherein said second transistor comprises a dopant segregated schottky barrier.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 23, 2017
From: OR-BACH, ZVI; SEKAR, DEEPAK; CRONQUIST, BRIAN
To: MONOLITHIC 3D INC.
Reel/Frame 044203/0349 →
Continuity (18)
Continuation In Part 15201430 · Jul 2, 2016
Continuation In Part 14626563 · Feb 19, 2015
Continuation In Part 15452615
Continuation In Part 14199755 · Mar 6, 2014
Continuation 14017266 · Sep 3, 2013
Continuation 13685751 · Nov 27, 2012
Continuation 13099010 · May 2, 2011
Continuation In Part 13016313 · Jan 28, 2011
Continuation In Part 12970602 · Dec 16, 2010
Continuation In Part 12951913 · Nov 22, 2010
Continuation In Part 12946617 · Nov 18, 2010
Continuation In Part 12904119 · Oct 13, 2010
Continuation In Part 12900379 · Oct 7, 2010
Continuation 12847911 · Jul 30, 2010
Continuation In Part 12792673 · Jun 2, 2010
Continuation In Part 12706520 · Feb 16, 2010
Continuation In Part 12577532 · Oct 12, 2009
Related Publication 20170179155A1 · Jun 22, 2017