Invention Grant
- Patent Title: Acid aqueous binary silver-bismuth alloy electroplating compositions and methods
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Application No.: US17008691Application Date: 2020-09-01
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Publication No.: US11434577B2Publication Date: 2022-09-06
- Inventor: Miguel A. Rodriguez , Youngmin Yoon , Michael Lipschutz , Jamie Y. C. Chen
- Applicant: Rohm and Haas Electronic Materials LLC
- Applicant Address: US MA Marlborough
- Assignee: Rohm and Haas Electronic Materials LLC
- Current Assignee: Rohm and Haas Electronic Materials LLC
- Current Assignee Address: US MA Marlborough
- Agent John J. Piskorski
- Main IPC: C25D3/64
- IPC: C25D3/64 ; C25D21/12
Abstract:
Aqueous acid binary silver-bismuth alloy electroplating compositions and methods enable electroplating silver rich binary silver-bismuth deposits. The aqueous acid binary silver-bismuth alloy electroplating compositions include thiol terminal aliphatic compounds having carboxyl or sulfonic groups which enable deposition of silver rich binary silver-bismuth alloys having deposits which are matte to semi-bright, uniform and have a low coefficient of friction.
Public/Granted literature
- US20210115582A1 ACID AQUEOUS BINARY SILVER-BISMUTH ALLOY ELECTROPLATING COMPOSITIONS AND METHODS Public/Granted day:2021-04-22
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