IP Library Granted Patent US 8,273,610
Granted Patent B2
US 8,273,610 · App. 13/273,712 · Granted Sep 25, 2012

Method of constructing a semiconductor device and structure

Assignee: MonolithIC 3D Inc.
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Quick Facts
Patent No.
US 8,273,610
App. No.
13/273,712
Granted
Sep 25, 2012
Kind
B2
Abstract

A method of manufacturing a semiconductor device, the method including, providing a first monocrystalline layer including semiconductor regions, overlaying the first monocrystalline layer with an isolation layer, transferring a second monocrystalline layer comprising semiconductor regions to overlay the isolation layer, wherein the first monocrystalline layer and the second monocrystalline layer are formed from substantially different crystal materials; and subsequently etching the second monocrystalline layer as part of forming at least one transistor in the second monocrystalline layer.

Claims (28)

1. A method of manufacturing a semiconductor device, the method comprising:

providing a first monocrystalline layer comprising first semiconductor regions;

overlaying said first monocrystalline layer with at least one metal layer comprising aluminum or copper;

transferring a second monocrystalline layer comprising second semiconductor regions to a carrier;

annealing said second monocrystalline layer while on said carrier as part of forming at least one transistor on said second monocrystalline layer; and

after said annealing, transferring said second monocrystalline layer to overlay said metal layer;

wherein said annealing comprises a thermal anneal which is greater than 400 degrees Centigrade and wherein said first and second semiconductor regions comprise ion implanted and activated dopants.

2. The method according to claim 1 wherein said at least one transistor comprises at least one p-type transistor and at least one n-type transistor.

3. The method according to claim 1 wherein said at least one transistor is one of:

(i) a recessed-channel transistor (RCAT);

(ii) a junction-less transistor;

(iii) a replacement-gate transistor;

(iv) a thin-side-up transistor;

(v) a double gate transistor;

(vi) a horizontally oriented transistor;

(vii) a finfet type transistor;

(viii) a Dopant Segregated Schottky (DSS-Schottky) transistor; or

(ix) a trench MOSFET transistor.

4. The method according to claim 1 wherein said forming comprises etching.

5. The method according to claim 1 , further comprising:

forming at least one heat removal connection that does not conduct electricity.

6. The method according to claim 1 wherein said annealing comprises one of an ultrasound annealing or an optical annealing or microwave treatments.

7. The method according to claim 1 wherein said semiconductor device is an field programmable gate array (FPGA).

8. The method according to claim 1 wherein said semiconductor device is a gate array.

9. The method according to claim 1 wherein said annealing comprises one of a vacuum, a pressure greater than 760 torr, oxidizing atmospheres, or reducing atmospheres.

10. The method according to claim 1 wherein a debond/release agent of said transferring of said second monocrystalline layer to overlay said metal layer comprises hydrofluoric acid.

11. The method according to claim 1 wherein said second monocrystalline layer comprises silicon.

12. The method according to claim 1 wherein said first monocrystalline layer comprises silicon.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2011
From: OR-BACH, ZVI; SEKAR, DEEPAK C.; CRONQUIST, BRIAN; BEINGLASS, ISRAEL; WURMAN, ZE'EV; LIM, PAUL
To: MONOLITHIC 3D INC.
Reel/Frame 027342/0505 →
Continuity (4)
Continuation In Part 13016313 · Jan 28, 2011
Continuation In Part 12970602 · Dec 16, 2010
Continuation In Part 12949617 · Nov 18, 2010
Related Publication 20120129301A1 · May 24, 2012