Invention Grant
- Patent Title: Semiconductor device with embedded low-K metallization
- Patent Title (中): 具有嵌入式低K金属化的半导体器件
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Application No.: US13027739Application Date: 2011-02-15
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Publication No.: US08222103B1Publication Date: 2012-07-17
- Inventor: Peter Baars , Till Schloesser
- Applicant: Peter Baars , Till Schloesser
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Williams, Morgan & Amerson, P.C.
- Main IPC: H01L21/8242
- IPC: H01L21/8242 ; H01L29/94

Abstract:
Generally, the subject matter disclosed herein relates to a semiconductor device with embedded low-k metallization. A method is disclosed that includes forming a plurality of copper metallization layers that are coupled to a plurality of logic devices in a logic area of a semiconductor device and, after forming the plurality of copper metallization layers, forming a plurality of capacitors in a memory array of the semiconductor device. The capacitors are formed using a non-low-k dielectric material (k value greater than 3), while the copper metallization layers are formed in layers of low-k dielectric material (k value less than 3). A semiconductor device is also disclosed which includes a plurality of logic devices, a memory array comprising a plurality of capacitors, a conductive contact plate coupled to the plurality of capacitors, and a plurality of copper metallization layers coupled to the logic devices, wherein the plurality of copper metallization layers are positioned at a level that is below a level of a bottom surface of the contact plate. A material other than a low-k dielectric material is positioned between the plurality of capacitors in the memory array.
Information query
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