会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明申请
    • Via contact forming method
    • 通过接触形成方法
    • US20050101124A1
    • 2005-05-12
    • US10702493
    • 2003-11-07
    • Chang-Ming WuShing-Yih ShihYi-Nan Chen
    • Chang-Ming WuShing-Yih ShihYi-Nan Chen
    • H01L21/4763H01L21/768
    • H01L21/76802H01L21/76834
    • A via contact forming method. The method includes the steps of providing a substrate; forming a first dielectric layer on the substrate; forming a bit line in the first dielectric layer; forming a liner layer on the first dielectric layer containing the bit line; forming a second dielectric layer on the liner layer; in the second dielectric layer, forming a contact hole leading to the bit line; and filling the contact hole with metal to form a via contact. The via contact forming method in accordance with the present invention has high tolerance to misalignment between the via contact and the bit line, while maintaining low resistance and good electric performance.
    • 通孔接触形成方法。 该方法包括提供基板的步骤; 在所述基板上形成第一电介质层; 在第一介电层中形成位线; 在包含所述位线的所述第一介质层上形成衬垫层; 在所述衬垫层上形成第二电介质层; 在第二电介质层中形成通向位线的接触孔; 并用金属填充接触孔以形成通孔接触。 根据本发明的通孔接触形成方法在保持低电阻和良好的电性能的同时对通孔接触和位线之间的未对准具有高容限性。
    • 10. 发明授权
    • Method for forming openings in semiconductor device
    • 在半导体器件中形成开口的方法
    • US08642479B2
    • 2014-02-04
    • US13183358
    • 2011-07-14
    • Chih-Ching LinYi-Nan ChenHsien-Wen Liu
    • Chih-Ching LinYi-Nan ChenHsien-Wen Liu
    • H01L21/302
    • H01L21/76802H01L21/31144H01L21/32137
    • A method for forming an opening in a semiconductor device is provided, including: providing a semiconductor substrate with a silicon oxide layer, a polysilicon layer and a silicon nitride layer sequentially formed thereover; patterning the silicon nitride layer, forming a first opening in the silicon nitride layer, wherein the first opening exposes a top surface of the polysilicon layer; performing a first etching process, using gasous etchants including hydrogen bromide (HBr), oxygen (O2), and fluorocarbons (CxFy), forming a second opening in the polysilicon layer, wherein a sidewall of the polysilicon layer adjacent to the second opening is substantially perpendicular to a top surface of the silicon oxide layer, wherein x is between 1-5 and y is between 2-8; removing the silicon nitride layer; and performing a second etching process, forming a third opening in the silicon oxide layer exposed by the second opening.
    • 提供了一种在半导体器件中形成开口的方法,包括:向半导体衬底提供其上顺序形成的氧化硅层,多晶硅层和氮化硅层; 图案化氮化硅层,在氮化硅层中形成第一开口,其中第一开口暴露多晶硅层的顶表面; 使用包括溴化氢(HBr),氧(O 2)和碳氟化合物(C x F y)的气体蚀刻剂进行第一蚀刻工艺,在多晶硅层中形成第二开口,其中与第二开口相邻的多晶硅层的侧壁基本上 垂直于氧化硅层的顶表面,其中x在1-5之间,y在2-8之间; 去除氮化硅层; 以及进行第二蚀刻工艺,在由所述第二开口暴露的所述氧化硅层中形成第三开口。