发明名称 Alignment system for a spherical device
摘要 Method and apparatus are described for aligning a spherical-shaped semiconductor having an alignment mark, the device comprising a housing having a bore for receiving the spherical-shaped semiconductor; an optical sensing system and controller for ascertaining the position and orientation of the alignment mark; and rotatable vacuum rods for rotating the spherical-shaped semiconductor along at least two axes thereof, thereby rotating the alignment mark into a predetermined orientation.
申请公布号 US6265234(B1) 申请公布日期 2001.07.24
申请号 US20000490499 申请日期 2000.01.25
申请人 BALL SEMICONDUCTOR, INC. 发明人 MEI WENHUI
分类号 G03F9/00;H01L21/68;H01L23/544;H01L29/06;(IPC1-7):H01L21/66 主分类号 G03F9/00
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