发明名称 |
Self-aligned double spacer patterning process |
摘要 |
Embodiments of the present disclosure are a method of forming a semiconductor device and methods of patterning a semiconductor device. An embodiment is a method of forming a semiconductor device, the method including forming a first hard mask layer over a semiconductor device layer, the first hard mask layer comprising a metal-containing material, forming a second hard mask layer over the first hard mask layer, and forming a first set of metal-containing spacers over the second hard mask layer. The method further includes patterning the second hard mask layer using the first set of metal-containing spacers as a mask, forming a second set of metal-containing spacers on sidewalls of the patterned second hard mask layer, and patterning the first hard mask layer using the second set of metal-containing spacers as a mask. |
申请公布号 |
US9129906(B2) |
申请公布日期 |
2015.09.08 |
申请号 |
US201314098315 |
申请日期 |
2013.12.05 |
申请人 |
Taiwan Semiconductor Manufacturing Company, Ltd. |
发明人 |
Wu Yung-Hsu;Huang Tsung-Min;Tsai Cheng-Hsiung;Lee Chung-Ju;Bao Tien-I;Shue Shau-Lin |
分类号 |
H01L21/4763;H01L21/308;H01L21/768 |
主分类号 |
H01L21/4763 |
代理机构 |
Slater & Matsil, L.L.P. |
代理人 |
Slater & Matsil, L.L.P. |
主权项 |
1. A method of forming a semiconductor device, the method comprising:
forming a first hard mask layer over a semiconductor device layer, the first hard mask layer comprising a metal-containing material; forming a second hard mask layer over the first hard mask layer; forming a first set of metal-containing spacers over the second hard mask layer; patterning the second hard mask layer using the first set of metal-containing spacers as a mask; forming a second set of metal-containing spacers on sidewalls of the patterned second hard mask layer; and patterning the first hard mask layer using the second set of metal-containing spacers as a mask. |
地址 |
Hsin-Chu TW |