Patent ID: 11914282
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The system of claim 1, wherein the detector portion comprises a detector array,
an obtained light intensity I_s(i, j), which is obtained by a calculation in the detector array, is given to satisfy the following equation,

I_s(i,j)=α(i,j)*I_o(i,j)

where i is an index in an x direction and is one of 1, 2, p−1, p, p+1, . . . , m,
j is an index in a y direction and is one of 1, 2, q−1, q, q+1, . . . , n,
I_o(p, q) is an intensity of light measured at coordinates (p, q),
α(p, q) is a pixel gain value at the coordinates of (p, q), and
wherein the obtained light intensity I_s(p, q), which is obtained by the detector array, is given by a product of the intensity of light I_o(p, q) and the pixel gain value α(p, q), and
the obtained light intensity is used to design an illuminating part of a wafer exposure apparatus.