IP Library Granted Patent US 6,994,939
Granted Patent B1
US 6,994,939 · App. 10/283,685 · Granted Feb 7, 2006

Semiconductor manufacturing resolution enhancement system and method for simultaneously patterning different feature types

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Quick Facts
Patent No.
US 6,994,939
App. No.
10/283,685
Granted
Feb 7, 2006
Kind
B1
Abstract

A method and system of making a mask with a transparent substrate thereon is provided. A first resolution enhancement structure is formed on the first portion of the transparent substrate. A second resolution enhancement structure is formed on a second portion of the transparent substrate, with the second resolution enhancement structure different from the first resolution enhancement structure.

Claims (89)

1. A phase controlling semiconductor manufacturing resolution enhancement method comprising:

providing a transparent substrate;

forming a first resolution enhancement structure over a first portion of the transparent substrate; and

forming a second resolution enhancement structure over a second portion of the transparent substrate, the second resolution enhancement structure different from the first resolution enhancement structure, forming the second resolution enhancement structure further comprises placing a single partially transparent film on the transparent substrate and an opaque film on the partially transparent film; and

processing the opaque film to form a mask.

2. The method as claimed in claim 1 additionally comprising:

providing a first film on the first portion of the transparent substrate having the first resolution enhancement structure formed therein; and

providing a second film on the second portion of the transparent substrate having the second resolution enhancement structure formed therein.

3. The method as claimed in claim 1 additionally comprising;

providing a first film on the transparent substrate;

providing a second film on the first film;

removing a portion of the second film to form the first resolution enhancement structure in the first film; and

forming the second resolution enhancement structure in the first and second films.

4. The method as claimed in claim 1 wherein:

forming the first resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity effect mask portion, an alternating phase shift mask portion, an attenuated phase shift mask portion, and a combination thereof.

5. The method as claimed in claim 1 wherein:

forming the first resolution enhancement structure forms the structure over a core portion of the mask; and

forming the second resolution enhancement structure forms the structure over a periphery portion of the mask.

6. The method as claimed in claim 1 wherein: placing the mask in a lithography system.

7. The method as claimed in claim 1 additionally comprising:

forming a semiconductor substrate having tightly spaced structures on the first portion and isolated structures on the second portion of the semiconductor substrate.

8. A phase controlling semiconductor manufacturing enhancement method comprising:

providing a light-transparent substrate;

forming a first resolution enhancement structure over a first portion of the light-transparent substrate; and

forming a second resolution enhancement structure over a second portion of the light-transparent substrate, the second resolution enhancement structure different from the first resolution enhancement structure, the second resolution enhancement structure using a single partially light-transparent film on the light-transparent substrate and an opaque film on the partially light-transparent film; and

processing the opaque film to form a patterned mask.

9. The method as claimed in claim 8 additionally comprising:

providing an opaque film on the first portion of the light-transparent substrate having the first resolution enhancement structure formed therein; and

providing a partially transparent film on the second portion of the light-transparent substrate having the second resolution enhancement structure formed therein.

10. The method as claimed in claim 8 additionally comprising:

providing a partially transparent film on the transparent substrate;

providing an opaque film on the partially transparent film;

removing a portion of the opaque film to form the first resolution enhancement structure in the partially transparent film; and

forming the second resolution enhancement structure in the partially transparent and opaque films.

11. The method as claimed in claim 8 wherein:

forming the first resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity effect mask portion, an alternating phase shift mask portion, an attenuated phase shift mask portion, and a combination thereof; and

forming the second resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity effect mask portion, an alternating phase shift mask portion, an attenuated phase shift mask portion, and a combination thereof.

12. The method as claimed in claim 8 wherein:

forming the first resolution enhancement structure forms the structure over a core portion of the mask; and

forming the second resolution enhancement structure forms the structure over a periphery portion of the mask.

13. The method as claimed in claim 8 wherein:

placing the mask in a photolithography system.

14. The method as claimed in claim 8 additionally comprising:

forming a semiconductor substrate having proximally spaced structures on the first portion in a core portion of the semiconductor substrate and distally spaced structures on the second portion in a peripheral portion of the semiconductor substrate.

15. A phase controlling semiconductor manufacturing resolution enhancement system comprising:

a transparent substrate;

a first resolution enhancement structure over a first portion of the transparent substrate; and

a second resolution enhancement structure over a second portion of the transparent substrate, the second resolution enhancement structure different from the first resolution enhancement structure, the second resolution enhancement structure has a single partially transparent film on the transparent substrate and an opaque film on the partially transparent film; and

the transparent substrate, the first resolution enhancement structure, and the second resolution enhancement structure form a mask.

16. The system as claimed in claim 15 additionally comprising:

a first film on the first portion of the transparent substrate having the first resolution enhancement structure therein; and

a second film on the second portion of the transparent substrate having the second resolution enhancement structure therein.

17. The system as claimed in claim 15 additionally comprising:

a first film on the transparent substrate;

a second film on the first film having a portion of the second film removed to form the first resolution enhancement structure in the first film; and

the second resolution enhancement structure in the first and second film.

18. The system as claimed in claim 15 wherein:

the first resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity

effect mask portion, an alternating phase shift mask portion, an attenuated

phase shift mask portion, and a combination thereof.

19. The system as claimed in claim 15 wherein:

the first resolution enhancement structure is over a core portion of the mask; and

the second resolution enhancement structure is over a periphery portion of the mask.

20. The system as claimed in claim 15 wherein:

the mask is in a lithography system.

21. The system as claimed in claim 15 additionally comprising:

a semiconductor substrate having tightly spaced structures on the first portion and isolated structures on the second portion of the semiconductor substrate.

22. A phase controlling semiconductor manufacturing enhancement system comprising:

a light-transparent substrate;

a first resolution enhancement structure over a first portion of the light-transparent substrate; and

a second resolution enhancement structure over a second portion of the light-transparent substrate, the second resolution enhancement structure different from the first resolution enhancement structure, the second resolution enhancement structure has a single partial light-transparent film on the light-transparent substrate and an opaque film on the partially light-transparent film; and

the light-transparent substrate, the first resolution enhancement structure, and the second resolution enhancement structure from a patterned mask.

23. The system as claimed in claim 22 additionally comprising:

an opaque film on the first portion of the light-transparent substrate having the first resolution enhancement structure therein; and

a partially transparent film on the second portion of the light-transparent substrate having the second resolution enhancement structure therein.

24. The system as claimed in claim 22 additionally comprising:

a partially transparent film on the transparent substrate;

an opaque film on the partially transparent film having a portion of the opaque film removed to form the first resolution enhancement structure in the partially transparent film; and

the second resolution enhancement structure in the partially transparent and opaque films.

25. The system as claimed in claim 22 wherein:

the first resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity effect mask portion, an alternating phase shift mask portion, an attenuated phase shift mask portion, and a combination thereof; and

the second resolution enhancement structure uses a structure selected from a group consisting of a binary mask portion, a phase shift mask portion, a proximity effect mask portion, an alternating phase shift mask portion, an attenuated phase shift mask portion, and a combination thereof.

26. The system as claimed in claim 22 wherein:

the first resolution enhancement structure is over a core portion of the mask; and

the second resolution enhancement structure is over a periphery portion of the patterned mask.

27. The system as claimed in claim 22 wherein:

the patterned mask is in a photolithography system.

28. The system as claimed in claim 22 additionally comprising:

a semiconductor substrate having proximally spaced structures on the first portion in a core portion of the semiconductor substrate and distally spaced structures on the second portion in a peripheral portion of the semiconductor substrate.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE 8647899 PREVIOUSLY RECORDED ON REEL 035240 FRAME 0429. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTERST. Recorded Nov 3, 2020
From: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 058002/0470 →
RELEASE OF SECURITY INTEREST Recorded Mar 13, 2015
From: BARCLAYS BANK PLC
To: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY LLC
Reel/Frame 035201/0159 →
SECURITY AGREEMENT Recorded Jun 4, 2010
From: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY INC.; SPANSION TECHNOLOGY LLC
To: BARCLAYS BANK PLC
Reel/Frame 024522/0338 →