Exposure apparatus and method for producing device
First Claim
Patent Images
1. An exposure apparatus comprising:
- a projection optical system for projecting a pattern on a reticle onto an object to be exposed;
a reference mark that serves as a reference for an alignment between the reticle and the object;
a first fluid that has a refractive index of 1 or greater, and fills a space between at least part of said projection optical system and the object and a space between at least part of said projection optical system and the reference mark; and
an alignment mechanism for aligning the object by using said projection optical system and the first fluid.
0 Assignments
0 Petitions
Accused Products
Abstract
An exposure apparatus includes a projection optical system for projecting a pattern on a reticle onto an object to be exposed. The apparatus also includes a reference mark that serves as a reference for an alignment between the reticle and the object. The apparatus also includes a first fluid that has a refractive index of 1 or greater, and fills a space between at least part of said projection optical system and the object and a space between at least part of said projection optical system and the reference mark. In addition, an alignment mechanism aligns the object by using said projection optical system and the first fluid.
-
Citations
29 Claims
-
1. An exposure apparatus comprising:
-
a projection optical system for projecting a pattern on a reticle onto an object to be exposed;
a reference mark that serves as a reference for an alignment between the reticle and the object;
a first fluid that has a refractive index of 1 or greater, and fills a space between at least part of said projection optical system and the object and a space between at least part of said projection optical system and the reference mark; and
an alignment mechanism for aligning the object by using said projection optical system and the first fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 29)
-
-
11. An exposure apparatus comprising:
-
a projection optical system for projecting a pattern on a reticle onto an object;
a reference mark that serves as a reference for an alignment between the reticle and the object;
a light-receiving element for receiving light that transmits said reference mark; and
a fluid that has a refractive index of 1 or greater, and fills a space between said reference mark and said light-receiving element. - View Dependent Claims (12, 13, 14)
-
-
15. An exposure apparatus comprising:
-
a projection optical system for projecting a pattern on a reticle onto an object;
a reference mark that serves as a reference for an alignment between the reticle and the object;
an irradiating section for irradiating light that transmits said reference mark and enters said projection optical system; and
a fluid that has a refractive index of 1 or greater, and fills a space between said reference mark and said irradiating section. - View Dependent Claims (16, 17)
-
-
18. An exposure apparatus comprising:
-
a projection optical system for projecting a pattern on a reticle onto an object;
a reference mark that serves as a reference for an alignment between the reticle and the object; and
an anti-reflection member for preventing a total reflection of light that has passed said reference mark and has not yet been received by said light-receiving element. - View Dependent Claims (19, 20, 21, 22, 23)
-
-
24. An exposure apparatus comprising:
-
a projection optical system for projecting a pattern on a reticle onto an object;
a light-receiving element for receiving light that transmits said reference mark; and
an adjuster, arranged between said reference mark and the light-receiving element, for adjusting a numerical aperture of the light. - View Dependent Claims (25, 26)
-
-
27. An exposure method for exposing a pattern on a reticle onto an object, said exposure method comprising the step of:
aligning the reticle and the object with each other by using light having a numerical aperture of 1 or greater. - View Dependent Claims (28)
Specification