Invention Grant
- Patent Title: Semiconductor device with reduced leakage current and method for making the same
- Patent Title (中): 具有减小漏电流的半导体器件及其制造方法
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Application No.: US14627340Application Date: 2015-02-20
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Publication No.: US09530853B2Publication Date: 2016-12-27
- Inventor: Haldane S. Henry , Eunki Hong , Charles S. Whitman
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow + Terranova, P.L.L.C.
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L29/47 ; H01L29/812 ; H01L29/66 ; H01L21/285 ; H01L29/20 ; H01L21/02

Abstract:
A semiconductor device with reduced leakage current and a method of making the same is disclosed. The semiconductor device includes a substrate having a device layer, a dielectric layer, and a gate metal opening within the dielectric layer between a source contact and a gate contact. A first metal layer is disposed within the gate metal opening, and a second metal layer is disposed directly onto the second metal layer, wherein the second metal layer is oxidized and has a thickness that ranges from about 4 Angstroms to about 20 Angstroms to limit a leakage current of a total gate periphery to between around 0.1 μA/mm and around 50 μA/mm. A current carrying layer is disposed on the second metal layer. In one embodiment, the first metal layer is nickel (Ni), the second metal layer is palladium (Pd), and the current carrying layer is gold (Au).
Public/Granted literature
- US20150255560A1 SEMICONDUCTOR DEVICE WITH REDUCED LEAKAGE CURRENT AND METHOD FOR MAKING THE SAME Public/Granted day:2015-09-10
Information query
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