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    • 3. 发明授权
    • Light irradiation apparatus, light irradiation method, crystallization apparatus, crystallization method, and semiconductor device
    • 光照射装置,光照射法,结晶装置,结晶法和半导体装置
    • US07927421B2
    • 2011-04-19
    • US11687113
    • 2007-03-16
    • Yukio Taniguchi
    • Yukio Taniguchi
    • C30B1/02
    • C30B13/24Y10T117/10Y10T117/1008
    • A light irradiation apparatus irradiates a target plane with light having a predetermined light intensity distribution. The apparatus includes a light modulation element having a light modulation pattern of a periodic structure represented by a primitive translation vector (a1, a2), an illumination system for illuminating the modulation element with the light, and an image forming optical system for forming the predetermined light intensity distribution obtained by the modulation pattern on the target plane. A shape of an exit pupil of the illumination system is similar to the Wigner-Seitz cell of a primitive reciprocal lattice vector (b1, b2) obtained from the primitive translation vector (a1, a2) by the following equations: b1=2π(a2×a3)/(a1·(a2×a3)) and b2=2π(a3×a1)/(a1·(a2×a3)) in which a3 is a vector having an arbitrary size in a normal direction of a flat surface of the modulation pattern of the modulation element, “·” is an inner product of the vector, and “×” is an outer product of the vector.
    • 光照射装置用具有预定光强度分布的光照射目标平面。 该装置包括具有由原始平移向量(a1,a2)表示的周期性结构的光调制图案的光调制元件,用于用光照亮调制元件的照明系统,以及用于形成预定的 通过目标平面上的调制图案获得的光强度分布。 照明系统的出射光瞳的形状类似于通过以下等式从原始平移向量(a1,a2)获得的原始互逆格子向量(b1,b2)的Wigner-Seitz单元:b1 = 2&pgr a2×a3)/(a1·(a2×a3))和b2 = 2&pgr(a3×a1)/(a1·(a2×a3)),其中a3是在 调制元件的调制图案的平坦面,“·”是矢量的内积,“×”是矢量的外积。