Invention Grant
- Patent Title: Electrochemical plating methods
- Patent Title (中): 电化学镀方法
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Application No.: US14219940Application Date: 2014-03-19
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Publication No.: US09496145B2Publication Date: 2016-11-15
- Inventor: John W. Lam , Ismail Emesh , Roey Shaviv
- Applicant: APPLIED Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: APPLIED Materials, Inc.
- Current Assignee: APPLIED Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Perkins Coie LLP
- Agent Kenneth H. Ohriner
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L21/288 ; H01L21/768 ; C25D7/12 ; H01L21/324 ; H01L23/532

Abstract:
An electrochemical process for applying a conductive film onto a substrate having a seed layer includes placing the substrate into contact with an electrochemical plating bath containing cobalt or nickel, with the plating bath having pH of 4.0 to 9.0. Electric current is conducted through the bath to the substrate. The cobalt or nickel ions in the bath deposit onto the seed layer. The plating bath may contain cobalt chloride and glycine. The electric current may range from 1-50 milli-ampere per square cm. After completion of the electrochemical process, the substrate may be removed from the plating bath, rinsed and dried, and then annealed at a temperature of 200 to 400 C to improve the material properties and reduce seam line defects. The plating and anneal process may be performed through multiple cycles.
Public/Granted literature
- US20150270133A1 ELECTROCHEMICAL PLATING METHODS Public/Granted day:2015-09-24
Information query
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