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1. 发明授权

US4133918A Method of marking semiconductors 失效
标题翻译：半导体标记方法
公开(公告)号：US4133918A
公开(公告)日：1979-01-09
申请号：US797738
申请日：1977-05-16
申请人： Douglas P. Simms , Anthony F. White , Carl W. Miller
发明人： Douglas P. Simms , Anthony F. White , Carl W. Miller
IPC分类号： B41F31/02 , B65D47/18 , B05D5/00
CPC分类号： B41F31/02
摘要： A non-contacting, non-clogging, electro-mechanically operated marking device or inker for continuous or intermittently marking a semiconductor wafer die is disclosed together with a method of operating the device. The marking device has an ambient pressure ink reservoir within which is mounted a thin, capillary filament guide tube. A length of filament such as, fishline, is positioned within the tube and secured at one end to the plunger of a solenoid. The distal end of the filament is driven out of the capillary tube by the solenoid to force a small amount of the marking fluid or ink out of the reservoir and onto the die without the filament contacting the die. The solenoid coil is energized by a current pulse having a first current level and a second current level that is less than the first current level. The second current level provides a short holding current for the solenoid to prevent spattering of the marking fluid.
摘要翻译：公开了一种用于连续或间歇地标记半导体晶片管芯的非接触，非堵塞，电机械操作的标记装置或墨水器以及操作该装置的方法。标记装置具有环境压力油墨储存器，其中安装有薄的毛细管丝导管。长丝如钓线位于管内，并在一端固定在螺线管的柱塞上。灯丝的远端由螺线管从毛细管中驱出，以将少量的标记液或墨水从储存器中挤出并流到模具上，而不会使细丝与模具接触。电磁线圈由具有小于第一电流电平的第一电流电平和第二电流电平的电流脉冲通电。第二电流电平为电磁线圈提供短的保持电流，以防止标记液体飞溅。

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