Exposure apparatus and exposure method
First Claim
1. An exposure apparatus, comprising:
- a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample;
a data processing means for bitmapping the shape of the pattern, and generating the pattern shape data in the bitmap format; and
a means for controlling the application of the charged beam or light onto the sample using the pattern shape data in the bitmap format;
wherein the data processing means comprises a function of rasterizing a pattern vertex data defining the pattern shape by a unit of a respective row area of the bitmap, a function of rejecting an overlap area between patterns, and a function of generating the pattern shape data in the bitmap format by the unit of a respective row area of the bitmap in a parallel pipeline manner, based on the result of the overlap rejection function.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides an exposure technology capable of generating bitmap data with high efficiency, and making compatible higher resolution and higher speed control in exposure using pattern data in a bitmap format. An apparatus implementing the exposure technology comprises: a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample; a data processing means for bitmapping the shape of the pattern, and generating the pattern shape data in the bitmap format; and a means for controlling the application of the charged beam or light onto the sample using the pattern shape data in the bitmap format, and the data processing means comprising a function of rejecting an overlap area between patterns from pattern vertex data defining the pattern shape; and a function of generating the pattern shape data in the bitmap format based on the result of the overlap rejection function.
-
Citations
12 Claims
-
1. An exposure apparatus, comprising:
- a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample;
a data processing means for bitmapping the shape of the pattern, and generating the pattern shape data in the bitmap format; and
a means for controlling the application of the charged beam or light onto the sample using the pattern shape data in the bitmap format;
wherein the data processing means comprises a function of rasterizing a pattern vertex data defining the pattern shape by a unit of a respective row area of the bitmap, a function of rejecting an overlap area between patterns, and a function of generating the pattern shape data in the bitmap format by the unit of a respective row area of the bitmap in a parallel pipeline manner, based on the result of the overlap rejection function. - View Dependent Claims (2)
- a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample;
-
3. An exposure apparatus, comprising:
- a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample;
a data processing means for bitmapping the shape of the pattern, and generating the pattern shape data in the bitmap format; and
a means for controlling the application of the charged particle beam or light onto the sample using the pattern shape data in the bitmap format;
wherein the data processing means comprises a function of decomposing the pattern shape into a plurality of rectangle patterns parallel to any one coordinate axis of orthogonal coordinates defined on the sample, converting the pattern shape into a data format for expressing the pattern shape as a pair of opposite corner point coordinates of each line parallel to any one coordinate axis of the orthogonal coordinates defined on the sample, a function of rejecting an overlap area between patterns from the respective sorted corner point data, and a function of generating the pattern shape data in the bitmap format by a unit of one of the plurality of rectangle patterns in a parallel pipeline manner, based on the result of the overlap rejection function. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
- a means for applying a charged particle beam or a light onto a sample, and exposing a desired pattern onto the sample;
-
11. An exposure method, comprising the steps of:
-
applying a charged particle beam or a light on a sample while controlling the application using pattern shape data in a bitmap format, and exposing a desired pattern onto the sample; decomposing the pattern shape into a plurality of rectangle patterns parallel to any one coordinate axis of the orthogonal axes defined on the sample, and converting each rectangle pattern into the data format for expressing the pattern shape by a pair of opposite corner point coordinates of each line parallel to any one coordinate axis of the orthogonal coordinates defined on the sample; grouping corner point data representing the respective rectangle patterns on a per given coordinate area basis, and sorting the respective grouped corner point data by reference to the coordinates of the respective corner point data; and rejecting an overlap area between patterns from the respective sorted corner point data; wherein; the pattern shape data in the bitmap format is generated based on the result of the overlap rejection step, out of the respective corner points of each corner point pair, one is set to be a start point and the other is set to be an end point according to the magnitude of the coordinate data with respect to a coordinate axis parallel to the line formed thereby, so that identity data for identifying the start point or the end point is appended to each corner point coordinate data, and in each pattern to which the lines belong, one is set to be an upper line, and the other is set to be a lower line according to the magnitude of the coordinate data of the respective lines with respect to their orthogonal coordinate axis, so that identity data for identifying the upper line or the lower line is appended to each corner point coordinate data. - View Dependent Claims (12)
-
Specification