发明授权
US06240931B1 Method for removing particles from a surface of an article 失效
从制品表面去除颗粒的方法

Method for removing particles from a surface of an article
摘要:
A method for removing particles from a surface of an article, such as a semiconductor wafer in a clean room. The particles are supplied with an electric charge. Subsequently, an ultrasonic wave or a gas stream is applied onto the surface of the article while an electric field is applied for driving away the electrically charged particles from the surface, thereby removing particles having a dimension smaller than 1 micrometer from the surface. The presence of a collecting member allows the removal of resulting, floating particles.
信息查询
0/0