发明申请
- 专利标题: Method for making contact making connections
- 专利标题(中): 接触连接方法
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申请号: US11033471申请日: 2005-01-12
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公开(公告)号: US20050176239A1公开(公告)日: 2005-08-11
- 发明人: Matthias Kronke , Joachim Patzer
- 申请人: Matthias Kronke , Joachim Patzer
- 申请人地址: DE Munich
- 专利权人: Infineon Technologies AG
- 当前专利权人: Infineon Technologies AG
- 当前专利权人地址: DE Munich
- 优先权: DE102004001853.7 20040113
- 主分类号: H01L21/283
- IPC分类号: H01L21/283 ; H01L21/3205 ; H01L21/44 ; H01L21/4763 ; H01L21/768
摘要:
The invention provides a method for fabricating contact-making connections, having the steps of: a) providing a substrate (101) with electronic circuit units (102a, 102b) arranged thereon, an intermediate layer (103) filling an interspace between the electronic circuit units (102a, 102b); an insulation layer (104) being deposited on the electronic circuit units (102a, 102b) and on the intermediate layer (103); a masking layer (105) being deposited on the insulation layer (104); and the masking layer (105) being patterned with a through-plating structure (106); b) patterning a contact-making region by means of the masking layer (105), a contact-making hole (112) being etched through the insulation layer (104) and the intermediate layer (103) as far as the substrate (101), a section of the substrate (101) being uncovered in accordance with the through-plating structure (106); c) filling the contact-making hole (112) with a through-plating material (108); d) polishing back the covering layer (107) deposited on the masking layer (105) as far as the masking layer (105); e) depositing a contact-making layer (109) on the masking layer (105) and the through-plating material, the contact-making layer (109) being electrically contact-connected with the through-plating material (108); and f) patterning the contact-making layer (109) together with the residual masking layer (105) in accordance with a structure of a contact-making layer mask (111) applied to the contact-making layer (109) in order to form interconnects as contact-making connections in a metallization plane (M).
公开/授权文献
- US07183188B2 Method for fabricating contact-making connections 公开/授权日:2007-02-27
信息查询
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