IP Library Granted Patent US 11,282,839
Granted Patent B2
US 11,282,839 · App. 16/870,135 · Granted Mar 22, 2022

Semiconductor device

Inventors: Sungmin Kim (Suwon-si, KR); Daewon Ha (Suwon-si, KR)
Assignee: SAMSUNG ELECTRONICS CO., LTD.
H01L27/0924H01L21/823814H01L21/823821H01L21/823871H01L23/5226H01L23/5286H01L29/0673H01L29/0847H01L29/42356H01L21/02636H01L21/823878
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Quick Facts
Patent No.
US 11,282,839
App. No.
16/870,135
Granted
Mar 22, 2022
Kind
B2
Abstract

A semiconductor device includes an arrive pattern including a channel region. The channel region is disposed between first and second source/drain patterns that are spaced apart from each other in a first direction. The channel region is configured to connect the first and second source/drain patterns to each other. A gate electrode is disposed on a bottom surface of the active pattern and is disposed between the first and second source/drain patterns. An upper interconnection line is disposed on a top surface of the active pattern opposite to the bottom surface of the active pattern and is connoted to the first source/drain pattern.

Claims (57)

1. A semiconductor device, comprising:

an active pattern including a channel region, the channel region disposed between first and second source/drain patterns that are spaced apart from each other in a first direction, the first and second source/drain patterns including impurities of a first conductivity type the channel region configured to connect the first and second source/drain patterns to each other;

a gate electrode on a bottom surface of the active pattern and disposed between the first and second source/drain patterns; and

an upper interconnection line disposed on a top surface of the active pattern opposite to the bottom surface of the active pattern and connected to the first sources/drain pattern,

wherein uppermost surfaces of the first and second sources drain patterns are positioned at a higher level than an uppermost surface of the channel region disposed therebetween.

2. The device of claim 1 , wherein the first source/drain pattern has a largest width in the first direction at a level higher than a level of the top surface of the active pattern.

3. The device of claim 1 , further comprising:

an upper contact coupled to a top surface of the first source/drain pattern; and

a lower contact coupled to a bottom surface of the second source/drain pattern.

4. The device of claim 3 , wherein, a bottom surface of the upper contact adjacent to the top surface of the first source/drain pattern has a width in the first direction that is larger than a width of a top surface of the lower contact adjacent to the bottom surface of the second source/drain pattern in the first direction.

5. The device of claim 1 , wherein the first source/chain pattern comprises:

a first portion that is adjacent to a side surface of the active pattern; and

a second portion that is extended from the first portion and protrudes above the top surface of the active pattern,

wherein the second portion has a width in the first direction that is larger than a width of the first portion in the first direction.

6. The device of claim 1 , further comprising:

a gate spacer on a sidewall of the gate electrode,

wherein the first and second source/drain patterns overlap the gate spacer when viewed in a plan view.

7. The device of claim 1 , wherein the upper interconnection line comprises a power rail.

8. The device of claim 1 , Wherein the upper interconnection line is extended parallel to the first direction.

9. The device of claim 1 , wherein the upper interconnection line overlaps the first and second source/drain patterns when viewed in a plan view.

10. The device of claim 1 , further comprising:

a semiconductor substrate provided below the gate electrode;

an interlayer insulating layer between the gate electrode and the semiconductor substrate; and

lower interconnection lines disposed in the interlayer insulating layer and connected to at least one of the first and second source/drain patterns.

11. The device of claim 1 , wherein the active pattern comprises a plurality of stacked semiconductor patterns that are vertically spaced apart from each other.

12. A semiconductor device, comprising:

first and second source/drain patterns that are spaced apart from each other in a first direction, the first and second source/drain patterns including impurities of a first conductivity type;

an active pattern disposed between oposing sidewalls of the first and second source/drain patterns;

a gate electrode on a bottom surface of the active pattern;

an insulating layer on a top surface of the active pattern; and

an upper interconnection line disposed on the insulating layer and electrically connected to the first source/drain pattern,

wherein the first source/drain pattern comprises a first portion that is adjacent to a side surface of the active pattern and a second portion that extends from the first portion into the insulating layer, and

a largest width of the first portion in the first direction is smaller than a largest width of the second portion in the first direction.

13. The device of claim 12 , wherein the upper interconnection line is extended in a second direction crossing the first direction and at least partially overlaps with each of the first and second source/drain patterns.

14. The device of claim 12 , further comprising:

a gate spacer on a sidewall of the gate electrode,

wherein the first and second source/drain patterns overlap the gate spacer when viewed in a plan view.

15. The device of claim 12 , wherein the upper interconnection line comprises a power rail.

16. A semiconductor device, comprising:

a substrate including a PMOS region and an NMOS region;

a plurality of first active regions provided on the PMOS region, the plurality of first active regions extending in a first direction and including a channel region;

a plurality of second active regions provided on the NMOS region, the plurality of second active regions extending in the first direction;

a gate electrode crossing the plurality of first active regions and the plurality of second active regions and extending in a second direction crossing the first direction, a portion of the gate electrode is positioned between bottom surfaces of the first active regions and a top surface of the substrate;

first source/drain patterns that are spaced apart from each other in the first direction and having the gate electrode interposed therebetween, the first source/drain patterns are connected to the plurality of first active regions, the first source/drain patterns including impurities of a first conductivity type, the channel region is disposed between the first source/drain patterns; and

an upper interconnection line disposed on a top surface of the first active region opposite to the bottom surface of the first active region,

wherein the upper interconnection line is connected to at least a portion of the first source/drain patterns, and

wherein an uppermost surface of the first source/drain patterns is positioned at a higher level than an uppermost surface of the channel region disposed therebetween.

17. The device of claim 16 , wherein the upper interconnection line extends in the second direction, and

each of the first source/drain patterns is at least partially overlapped with the upper interconnection line when viewed in a plan view.

18. The device of claim 16 , further comprising:

an interlayer insulating layer disposed between the gate electrode and the substrate; and

lower interconnection lines disposed in the interlayer insulating layer and connected to at least a portion of the first source/drain patterns.

19. The device of claim 16 , further comprising:

gate spacers on side surfaces of the gate electrode; and

a gate capping pattern between the gate spacers, the gate capping pattern disposed on a bottom surface of the gate electrode.

20. The device of claim 16 , wherein the plurality of first active regions have a fin shape protruding in a third direction crossing the first and second directions, and

lengths of the plurality of first active regions in the third direction are smaller than a length of the first source/drain pattern in the third direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2020
From: KIM, SUNGMIN; HA, DAEWON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 052611/0703 →
Priority Claims (1)
KR 10-2019-0059390 · May 21, 2019 · national
Continuity (1)
Related Publication 20200373301A1 · Nov 26, 2020
Cited By (2)
US 12,302,607 US 12,550,407