发明名称 Laser drawing method and apparatus
摘要 A method of laser drawing includes steps of causing laser light from a light source to be incident to an acousto-optical diffraction element, and deflecting the light incident to the element by changing a frequency of a high frequency signal to be inputted to the element to diffract the light, thereby changing a diffraction angle of the diffracted light, and condensing the diffracted light emerging from the element on an object to be processed as an optical spot, thereby scanning the object with the optical spot. A diffracted light intensity control table for controlling a light intensity of the diffracted light so as to be constant independent of the diffraction angle of the diffracted light is prepared in advance, and in the deflecting step, the light intensity of the diffracted light is controlled based on the diffracted light intensity control table.
申请公布号 US2008231940(A1) 申请公布日期 2008.09.25
申请号 US20080009028 申请日期 2008.01.16
申请人 SONY CORPORATION 发明人 IMANISHI SHINGO
分类号 G02F1/33 主分类号 G02F1/33
代理机构 代理人
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