IP Library › Granted Patent US 11,315,980
Granted Patent B1
US 11,315,980 · App. 17/572,550 · Granted Apr 26, 2022

3D semiconductor device and structure with transistors

Inventors: Deepak C. Sekar (Sunnyvale, CA); Zvi Or-Bach (Haifa, IL)
Assignee: Monolithic 3D Inc.
H01L27/2481H01L21/268H01L21/6835H01L21/76254H01L21/8221H01L21/84H01L21/845H01L27/0688H01L27/10802H01L27/10897H01L27/11H01L27/11529H01L27/11551H01L27/11578H01L27/1203H01L27/1211H01L27/228H01L27/249H01L27/2436H01L29/42392H01L29/785H01L29/7841H01L27/105H01L27/10826H01L27/10879H01L27/11526H01L27/11573H01L45/04H01L45/1226H01L45/146H01L2029/7857H01L2221/6835
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Quick Facts
Patent No.
US 11,315,980
App. No.
17/572,550
Granted
Apr 26, 2022
Kind
B1
Abstract

A semiconductor device, the device including: a plurality of transistors, where at least one of the plurality of transistors includes a first single crystal source, channel, and drain, where at least one of the plurality of transistors includes a second single crystal source, channel, and drain, where the second single crystal source, channel, and drain is disposed above the first single crystal source, channel, and drain, where at least one of the plurality of transistors includes a third single crystal source, channel, and drain, where the third single crystal source, channel, and drain is disposed above the second single crystal source, channel, and drain, where at least one of the plurality of transistors includes a fourth single crystal source, channel, and drain, and where the first single crystal source or drain, and the second single crystal source or drain each include n+ doped regions.

Claims (69)

1. A semiconductor device, the device comprising:

a plurality of transistors,

wherein at least one of said plurality of transistors comprises a first single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a second single crystal source, channel, and drain,

wherein said second single crystal source, channel, and drain is disposed above said first single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a third single crystal source, channel, and drain,

wherein said third single crystal source, channel, and drain is disposed above said second single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a fourth single crystal source, channel, and drain, and

wherein said fourth single crystal source, channel, and drain is disposed above said third single crystal source, channel, and drain; and

an ohmic connection between said first single crystal source or drain and said second single crystal source or drain.

2. The device according to claim 1 ,

wherein said first single crystal channel is self-aligned to said second single crystal channel being processed following the same lithography step.

3. The device according to claim 1 , further comprising:

at least one region of oxide to oxide bonds.

4. The device according to claim 1 ,

wherein at least one of said plurality of transistors comprises two side gates.

5. The device according to claim 1 ,

wherein at least one of said plurality of transistors comprises a gate all around structure.

6. The device according to claim 1 , further comprising:

a first gate structure, and

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said second single crystal channels.

7. The device according to claim 1 , further comprising:

a first gate structure, and

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said third single crystal channels.

8. A semiconductor device, the device comprising:

a plurality of transistors,

wherein at least one of said plurality of transistors comprises a first single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a second single crystal source, channel, and drain,

wherein said second single crystal source, channel, and drain is disposed above said first single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a third single crystal source, channel, and drain,

wherein said third single crystal source, channel, and drain is disposed above said second single crystal source, channel, and drain,

wherein at least one of said plurality of transistors comprises a fourth single crystal source, channel, and drain, and

wherein said first single crystal source or drain, and said second single crystal source or drain each comprise n+ doped regions.

9. The device according to claim 8 ,

wherein said first single crystal channel is self-aligned to said second single crystal channel being processed following the same lithography step.

10. The device according to claim 8 , further comprising:

at least one region of oxide to oxide bonds.

11. The device according to claim 8 ,

wherein at least one of said plurality of transistors comprises two side gates.

12. The device according to claim 8 ,

wherein at least one of said plurality of transistors comprises a gate all around structure.

13. The device according to claim 8 , further comprising:

a first gate structure,

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said second single crystal channels.

14. The device according to claim 8 , further comprising:

a first gate structure,

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said third single crystal channels.

15. A semiconductor device, the device comprising:

a plurality of transistors,

wherein at least one of said plurality of transistors comprises a first single crystal channel,

wherein at least one of said plurality of transistors comprises a second single crystal channel,

wherein said second single crystal channel is disposed above said first single crystal channel,

wherein at least one of said plurality of transistors comprises a third single crystal channel,

wherein said third single crystal channel is disposed above said second single crystal channel,

wherein at least one of said plurality of transistors comprises a fourth single crystal channel,

wherein said fourth single crystal channel is disposed above said third single crystal channel, and

wherein formation of said fourth single crystal channel comprises a layer transfer process.

16. The device according to claim 15 ,

wherein said first single crystal channel is self-aligned to said second single crystal channel being processed following the same lithography step.

17. The device according to claim 15 , further comprising:

regions of oxide to oxide bonds.

18. The device according to claim 15 ,

wherein at least one of said plurality of transistors comprises a gate all around structure.

19. The device according to claim 15 , further comprising:

a first gate structure,

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said second single crystal channels.

20. The device according to claim 15 , further comprising:

a first gate structure,

wherein said first gate structure controls at least one of said first single crystal channels and at least one of said third single crystal channels.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2022
From: OR-BACH, ZVI; SEKAR, DEEPAK
To: MONOLITHIC 3D INC.
Reel/Frame 058612/0743 →
Continuity (11)
Continuation In Part 17542490 · Dec 5, 2021
Continuation In Part 17402526 · Aug 14, 2021
Continuation In Part 17223822 · Apr 6, 2021
Continuation In Part 17114155 · Dec 7, 2020
Continuation In Part 17013823 · Sep 7, 2020
Continuation In Part 16409813 · May 11, 2019
Continuation In Part 15803732 · Nov 3, 2017
Continuation In Part 14555494 · Nov 26, 2014
Continuation 13246157 · Sep 27, 2011
Continuation 13173999 · Jun 30, 2011
Continuation 12901890 · Oct 11, 2010
Cited By (1)
US 12,635,583