IP Library Granted Patent US 9,184,166
Granted Patent B2
US 9,184,166 · App. 14/272,804 · Granted Nov 10, 2015

Manufacturing method of capacitor structure and semiconductor device using the same

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Quick Facts
Patent No.
US 9,184,166
App. No.
14/272,804
Granted
Nov 10, 2015
Kind
B2
Abstract

The instant disclosure relates to a semiconductor device which includes a semiconductor substrate, at least one patterned reinforcing layer, a plurality of lower electrodes, and a supporting layer. The at least one patterned reinforcing layer is arranged above the semiconductor substrate, wherein the at least one patterned reinforcing layer has a plurality of reinforcing structures configured to define a plurality of alignment apertures. The lower electrodes are arranged on the semiconductor substrate, wherein N of the lower electrodes pass through each of the alignment apertures, where N is an integer greater than or equal to 1. The supporting layer is arranged above the at least one patterned reinforcing layer and between the lower electrodes.

Claims (14)

1. A semiconductor device, comprising:

a semiconductor substrate;

at least one patterned reinforcing layer arranged above the semiconductor substrate, wherein the at least one patterned reinforcing layer has a plurality of reinforcing structures configured to define a plurality of alignment apertures;

a plurality of lower electrodes arranged on the semiconductor substrate, wherein N of the lower electrodes pass through each of the alignment apertures, where N is an integer greater than or equal to 2; and

a supporting layer arranged above the at least one patterned reinforcing layer and between the lower electrodes.

2. The semiconductor device according to claim 1 , wherein the semiconductor substrate includes a substrate, a plurality of buried bit lines, a plurality of bit line contacts, and a plurality of conductive structures, the buried bit lines are arranged in the substrate, the bit line contacts are arranged in the substrate at intervals of the buried bit lines, the conductive structures are arranged on the bit line contacts respectively for electrically connecting to the lower electrodes.

3. A semiconductor device, comprising:

a semiconductor substrate;

a first patterned reinforcing layer arranged above the semiconductor substrate, wherein the first patterned reinforcing layer has a plurality of first reinforcing structures configured to define a plurality of first alignment apertures;

a second patterned reinforcing layer arranged above the first patterned reinforcing, wherein the second patterned reinforcing layer has a plurality of second reinforcing structures configured to define a plurality of second alignment apertures;

a plurality of lower electrodes arranged on the semiconductor substrate, wherein N of the lower electrodes pass through each of the first alignment apertures, being supported by the first reinforcing structures, and M of the lower electrodes pass through each of the second alignment apertures, being supported by the second reinforcing structures, where both N and M are integers greater than or equal to 2, and N is not equal to M; and

a supporting layer arranged above the second patterned reinforcing layer and between the lower electrodes.

4. The semiconductor device according to claim 3 , wherein the first alignment apertures are circular, triangle, rectangular, pentagon, or hexagon shaped, the second alignment apertures are circular, triangle, rectangular, pentagon, or hexagon shaped.

5. The semiconductor device according to claim 3 , wherein the semiconductor substrate includes a substrate, a plurality of buried bit lines, a plurality of bit line contacts, and a plurality of conductive structures, the buried bit lines are arranged in the substrate, the bit line contacts are arranged in the substrate at intervals of the buried bit lines, the conductive structures are arranged on the bit line contacts respectively for electrically connecting to the lower electrodes.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Nov 12, 2019
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: MICRON TECHNOLOGY, INC.; MICRON SEMICONDUCTOR PRODUCTS, INC.
Reel/Frame 051028/0001 →
RELEASE OF SECURITY INTEREST Recorded Oct 9, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: MICRON TECHNOLOGY, INC.
Reel/Frame 050695/0825 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2017
From: INOTERA MEMORIES, INC.
To: MICRON TECHNOLOGY, INC.
Reel/Frame 041820/0815 →
SUPPLEMENT NO. 3 TO PATENT SECURITY AGREEMENT Recorded Feb 10, 2017
From: MICRON TECHNOLOGY, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 041675/0105 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE THIRD ASSIGNOR PREVIOUSLY RECORDED ON REEL 032854 FRAME 440. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 28, 2014
From: LEE, TZUNG-HAN; HU, YAW-WEN; AGARWAL, VISHNU KUMAR
To: INOTERA MEMORIES, INC.
Reel/Frame 033421/0104 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2014
From: LEE, TZUNG-HAN; HU, YAW-WEN; KUMAR, AGARWAL VISHNU
To: INOTERA MEMORIES, INC.
Reel/Frame 032854/0440 →