Invention Grant
- Patent Title: Spinwave based nondestructive material, structure, component, or device testing tools
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Application No.: US14020329Application Date: 2013-09-06
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Publication No.: US09846134B2Publication Date: 2017-12-19
- Inventor: Hyunsoo Yang , Sankha Subhra Mukherjee , Jae Hyun Kwon
- Applicant: NATIONAL UNIVERSITY OF SINGAPORE
- Applicant Address: SG Singapore
- Assignee: NATIONAL UNIVERSITY OF SINGAPORE
- Current Assignee: NATIONAL UNIVERSITY OF SINGAPORE
- Current Assignee Address: SG Singapore
- Agency: Nath, Goldberg & Meyer
- Agent Jerald L. Meyer; Tanya E. Harkins
- Main IPC: G01V3/00
- IPC: G01V3/00 ; G01N24/10 ; G01N22/00 ; G01R33/60

Abstract:
Systems and methods for spinwave-based metrology in accordance with embodiments of the disclosure involve generating and detecting spinwaves in a sample having a ferromagnetic material; and determining a material thickness, a material integrity measure, a presence of a manufacturing defect, a categorical type of manufacturing defect, and/or a manufacturing process statistic corresponding to spinwave behavior in the sample. In an embodiment, spinwaves are generated by way of concurrent exposure of a target measurement site of the sample to each of a bias magnetic field and radiation (e.g., microwave or radio frequency radiation) produced by a first set of integrated waveguides. A response signal corresponding to a behavior of spinwaves within the target measurement site can be generated by way of a second set of integrated waveguides. Various embodiments of systems and methods for generating spinwaves, detecting spinwaves, and calculating, analyzing, or monitoring one or more sample properties can be automated.
Public/Granted literature
- US20140097841A1 SPINWAVE BASED NONDESTRUCTIVE MATERIAL, STRUCTURE, COMPONENT, OR DEVICE TESTING TOOLS Public/Granted day:2014-04-10
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