发明名称 MARKING DEVICE FOR SEMICONDUCTOR DEVICE AND MARKING METHOD USING IT
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a laser marking device for a semiconductor device which can efficiently execute marking without positional deviations even if the warpage of a semiconductor substrate caused by the contraction of a resin occurs, and a marking method. <P>SOLUTION: The marking device for the semiconductor device is provided with an image recognition means 18 which recognizes the warpage of the semiconductor substrate. A controller 17 divides a plurality of semiconductor elements into blocks on the basis of the degree of the warpage. It calculates coordinates of the individual semiconductor elements. Printing is executed for every block. As a result, it is possible to enhance the accuracy of the marking positions. The printing without the deviations can be executed corresponding to the warpage of the semiconductor substrate. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p>
申请公布号 JP2004276060(A) 申请公布日期 2004.10.07
申请号 JP20030069998 申请日期 2003.03.14
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 ISHIHARA TOMOYUKI
分类号 B23K26/00;B23K101/40;H01L21/02;(IPC1-7):B23K26/00 主分类号 B23K26/00
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