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发明名称
一种深矽通孔的刻蚀方法
摘要
本发明提供一种深矽通孔的刻蚀方法,属于半导体制造技术领域。该发明包括采用反应离子刻蚀的刻蚀步骤和聚合物沉积步骤,所述刻蚀步骤和聚合物沉积步骤交替进行,所述刻蚀步骤采用的气体中包括用于化学反应等离子刻蚀矽的第一气体和用于与矽反应形成矽化物保护膜的第二气体。使用该方法刻蚀形成TSV时,具有刻蚀效率高、TSV通孔侧壁光滑度好的特点。
申请公布号
TWI416624
申请公布日期
2013.11.21
申请号
TW098142480
申请日期
2009.12.11
申请人
中微半导体设备(亚洲)有限公司 开曼群岛
发明人
崔在雄;皮尔斯 凯文;吴万俊;严利均;雷本亮
分类号
H01L21/3065
主分类号
H01L21/3065
代理机构
代理人
黄淑贞 台中市北屯区北屯路212巷122弄8号
主权项
地址
开曼群岛
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