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    • 1. 发明授权
    • Method for filling a hole with a metal
    • 用金属填充孔的方法
    • US07026242B2
    • 2006-04-11
    • US10802411
    • 2004-03-16
    • Hong-Seong SonSang-Rok HahIl-Goo KimJun-Hwan Oh
    • Hong-Seong SonSang-Rok HahIl-Goo KimJun-Hwan Oh
    • H01L21/4763
    • H01L21/2885H01L21/76877
    • In a method for filling a hole with a metal, an insulating layer, a first mask layer and a second mask layer are successively formed on a semiconductor substrate. The first and second mask layers are etched using a photoresist pattern to form first and second masks. The first mask layer pattern is selectively etched using an etchant, the first mask layer pattern having a higher etching selectivity than the second layer pattern with respect to the etchant, to form a third mask layer pattern having a broadened opening. The insulating layer is etched using the second mask to form a hole in the insulating layer. A metal layer is formed in the hole and the third opening. The metal layer is planarized to form a metal plug buried in the hole without recesses or voids.
    • 在用金属填充孔的方法中,在半导体衬底上依次形成绝缘层,第一掩模层和第二掩模层。 使用光致抗蚀剂图案蚀刻第一和第二掩模层以形成第一和第二掩模。 使用蚀刻剂选择性地蚀刻第一掩模层图案,第一掩模层图案相对于蚀刻剂具有比第二层图案更高的蚀刻选择性,以形成具有加宽开口的第三掩模层图案。 使用第二掩模蚀刻绝缘层,以在绝缘层中形成孔。 在孔和第三开口中形成金属层。 金属层被平坦化以形成埋在孔中的金属塞,而没有凹陷或空隙。
    • 10. 发明授权
    • Paging method in area where macro ASN and femto ASN are linked in mobile network, and system therefor
    • 宏ASN和femto ASN在移动网络中链接的分页方法及其系统
    • US08428603B2
    • 2013-04-23
    • US12960720
    • 2010-12-06
    • Kyung-Jin KimGyou-Hwan KimGwang-Eun KimJun-Hwan Oh
    • Kyung-Jin KimGyou-Hwan KimGwang-Eun KimJun-Hwan Oh
    • H04W36/08
    • H04W36/04H04W36/0033
    • A system and method for performing paging in an area where a macro Base Station (BS) and a femto Access Services Network (ASN) are linked in a mobile network are provided. The method includes, during handover of a Mobile Station (MS) between a macro ASN and a femto ASN, a first gateway of a current ASN acquires paging group information of a previous ASN. Upon request for paging from the MS in the current ASN, the first gateway requests a BS of the previous ASN to transmit paging information to the MS based on the paging group information of the previous ASN. By doing so, paging success rate may be improved for an MS in coverage of a macro ASN linked to a femto BS, and the high paging success rate may be guaranteed regardless of whether the handover scheme is a controlled handover scheme or an uncontrolled handover scheme.
    • 提供了一种用于在移动网络中链接有宏基站(BS)和毫微微接入服务网络(ASN)的区域中执行寻呼的系统和方法。 该方法包括:在移动站(MS)在宏ASN与毫微微ASN之间切换期间,当前ASN的第一网关获取先前ASN的寻呼组信息。 根据当前ASN从MS寻呼的请求,第一网关根据先前ASN的寻呼组信息,请求先前ASN的BS向MS发送寻呼信息。 通过这样做,可以提高与毫微微BS相关联的宏ASN的覆盖范围内的MS的寻呼成功率,并且可以保证高寻呼成功率,而不管切换方案是受控切换方案还是不受控制的切换方案 。