Invention Grant
- Patent Title: Sacrificial layer for platinum patterning
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Application No.: US15658039Application Date: 2017-07-24
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Publication No.: US10297497B2Publication Date: 2019-05-21
- Inventor: Sebastian Meier , Helmut Rinck , Kai-Alexander Schachtschneider , Fromund Metz , Mario Schmidpeter , Javier Gustavo Moreira
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Jacqueline J. Garner; Charles A. Brill; Frank D. Cimino
- Main IPC: H01L21/285
- IPC: H01L21/285 ; H01L21/311 ; H01L21/768 ; H01L21/3213

Abstract:
In accordance with at least one embodiment of the disclosure, a method of patterning platinum on a substrate is disclosed. In an embodiment, an adhesive layer is deposited over the substrate, a sacrificial layer is deposited over the adhesive layer, and a patterned photoresist layer is formed over the sacrificial layer. Then, the sacrificial layer is patterned utilizing the photoresist layer as a mask such that at least a portion of the adhesive layer is exposed. Subsequently, the top and sidewall surfaces of the patterned sacrificial layer and the first portion of the adhesive layer are covered by a platinum layer. Finally, the sacrificial layer and a portion of the platinum layer covering the top and sidewall surfaces of the sacrificial layer are etched, thereby leaving a remaining portion of the platinum layer to form a patterned platinum layer on the substrate.
Public/Granted literature
- US20180204767A1 SACRIFICIAL LAYER FOR PLATINUM PATTERNING Public/Granted day:2018-07-19
Information query
IPC分类: