Leakage-free implantation-free ETSOI transistors

US9768254B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9768254-B2
Application numberUS-201514814064-A
CountryUS
Kind codeB2
Filing dateJul 30, 2015
Priority dateJul 30, 2015
Publication dateSep 19, 2017
Grant dateSep 19, 2017

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  1. Title

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A semiconductor device includes an extremely thin semiconductor-on-insulator substrate (ETSOI) having a base substrate, a thin semiconductor layer and a buried dielectric therebetween. A device channel is formed in the thin semiconductor layer. Source and drain regions are formed at opposing positions relative to the device channel. The source and drain regions include an n-type material deposited on the buried dielectric within a thickness of the thin semiconductor layer. A gate structure is formed over the device channel.

First claim

Opening claim text (preview).

The invention claimed is: 1. A semiconductor device, comprising: an extremely thin semiconductor-on-insulator substrate (ETSOI) having a base substrate, a thin semiconductor layer and a buried dielectric therebetween; a device channel formed in the thin semiconductor layer; source and drain regions formed at opposing positions relative to the device channel, the source and drain regions including an n-type material deposited on the buried dielectric within a thickness of the thin semiconductor layer, wherein the n-type material includes ZnO; and a gate structure formed over the device channel. 2. The semiconductor device as recited in claim 1 , wherein the ZnO is Al-doped. 3. The semiconductor device as recited in claim 1 , wherein the source and drain regions are formed to a substantially same thickness as the thin semiconductor layer. 4. The semiconductor device as recited in claim 1 , wherein the device channel includes material comprising the thin semiconductor layer. 5. A semiconductor device, comprising: an extremely thin semiconductor-on-insulator (ETSOI) substrate having a base substrate, a thin semiconductor layer and a buried dielectric therebetween; a device channel patterned in the thin semiconductor layer; openings formed through the thin semiconductor layer to the buried dielectric; an aluminum doped zinc oxide material deposited on the buried dielectric within the openings and forming source and drain regions within the openings at opposing positions relative to the device channel; and a gate structure formed over the device channel. 6. The semiconductor device as recited in claim 5 , wherein the source and drain regions are formed to a substantially same thickness as the thin semiconductor layer. 7. The semiconductor device as recited in claim 5 , wherein the n-type material includes an amorphous phase. 8. A semiconductor device, comprising: an extremely thin semiconductor-on-insulator substrate (ETSOI) having a base substrate, a thin semiconductor layer and a buried dielectric therebetween; a device channel formed in the thin semiconductor layer; source and drain regions formed at opposing positions relative to the device channel, the source and drain regions including an n-type material deposited on the buried dielectric within a thickness of the thin semiconductor layer wherein the n-type material includes an amorphous phase; and a gate structure formed over the device channel. 9. The semiconductor device as recited in claim 8 , wherein the n-type material includes ZnO. 10. The semiconductor device as recited in claim 9 , wherein the ZnO is Al-doped. 11. The semiconductor device as recited in claim 8 , wherein the source and drain regions are formed to a substantially same thickness as the thin semiconductor layer. 12. The semiconductor device as recited in claim 8 , wherein the device channel includes material comprising the thin semiconductor layer.

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What does patent US9768254B2 cover?
A semiconductor device includes an extremely thin semiconductor-on-insulator substrate (ETSOI) having a base substrate, a thin semiconductor layer and a buried dielectric therebetween. A device channel is formed in the thin semiconductor layer. Source and drain regions are formed at opposing positions relative to the device channel. The source and drain regions include an n-type material deposi…
Who is the assignee on this patent?
IBM
What technology area does this patent fall under?
Primary CPC classification H01L29/0847. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).