Invention Grant
- Patent Title: Method of forming an interconnect structure
- Patent Title (中): 形成互连结构的方法
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Application No.: US12444677Application Date: 2007-10-05
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Publication No.: US07790606B2Publication Date: 2010-09-07
- Inventor: Roel Daamen
- Applicant: Roel Daamen
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP06122003 20061009
- International Application: PCT/IB2007/054070 WO 20071005
- International Announcement: WO2008/044181 WO 20080417
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
A method of forming an interconnect structure in a semiconductor device in which via holes (62) defined in a dielectric layer are filled with a filler material (64), such as a porogen material, before a further dielectric layer (66) is deposited thereover. Trenches (72) are formed in the further dielectric layer and then the filler material exposed thereby in the via holes is removed. The method provides a robust process which affords improved via and trench profile control.
Public/Granted literature
- US20100105202A1 METHOD OF FORMING AN INTERCONNECT STRUCTURE Public/Granted day:2010-04-29
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