Invention Grant
- Patent Title: Method for forming a metal contact on a surface of a semiconductor, and device with a metal contact
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Application No.: US15105541Application Date: 2014-12-17
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Publication No.: US09768356B2Publication Date: 2017-09-19
- Inventor: Sven Einfeldt , Luca Redaelli , Michael Kneissl
- Applicant: FORSCHUNGSVERBUND BERLIN E.V.
- Applicant Address: DE Berlin
- Assignee: Forschungsverbund Berlin E.V.
- Current Assignee: Forschungsverbund Berlin E.V.
- Current Assignee Address: DE Berlin
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: DE102013226270 20131217
- International Application: PCT/EP2014/078189 WO 20141217
- International Announcement: WO2015/091626 WO 20150625
- Main IPC: H01L33/40
- IPC: H01L33/40 ; H01L21/285 ; H01L29/45 ; H01S5/22 ; H01L33/36 ; H01S5/323 ; H01L33/32 ; H01L33/38 ; H01L33/58 ; H01L29/20 ; H01S5/042 ; H01L33/00

Abstract:
A method is described for forming at least one metal contact on a surface of a semiconductor and a device with at least one metal contact. The method is used for forming at least one metal contact (60) on a surface (11) of a semiconductor (10) and has the steps of: applying a metal layer (20) of palladium onto the semiconductor surface (11), applying a mask (40, 50) onto the metal layer (20), and structuring the palladium of the metal layer (20) using the mask (40, 50), wherein lateral deposits (21) of the metal are formed on sidewalls of the mask by the structuring so that the mask is embedded between the deposits (21) and the structured metal layer (20′) after the structuring. Since the mask is conductive, it can remain embedded in the metal. The deposits and the mask form a part of the contact.
Public/Granted literature
- US20160322538A1 METHOD FOR FORMING A METAL CONTACT ON A SURFACE OF A SEMICONDUCTOR, AND DEVICE WITH A METAL CONTACT Public/Granted day:2016-11-03
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