Measuring and testing – Vibration – By mechanical waves
Patent
1986-03-19
1987-03-03
Ciarlante, Anthony V.
Measuring and testing
Vibration
By mechanical waves
73642, G01N 2900
Patent
active
046465731
ABSTRACT:
The disclosed scanning acoustic microscope comprises a solid lens body consisting of two sections of materials having different sound propagation characteristics but matching acoustic impedances. A lens is formed by the interface of said two sections and has a focal point coinciding with the apex of a sharply pointed tip formed at the free surface of one of said sections. The tip and the specimen to be investigated are immersed in a coupling medium having a relatively high acoustic absorption coefficient. The lens body carries an acoustic transducer on its surface remote from the tip for sending plane sound waves through the lens and tip onto the specimen. Acoustic waves reflected from the specimen are also received by this transducer. Acoustic waves transmitted through the specimen optionally may be received by a transducer arranged on the opposite side of the specimen. By appropriate processing of the received signals, high-resolution (10 nm) images of the specimen can be obtained.
REFERENCES:
patent: 3934460 (1976-01-01), Sherwin et al.
patent: 4151752 (1979-05-01), Perdijon
patent: 4487069 (1984-12-01), Ishikawa et al.
patent: 4491020 (1985-01-01), Chubachi
patent: 4541281 (1985-09-01), Chubachi et al.
patent: 4587848 (1986-05-01), Nakamura et al.
Ciarlante Anthony V.
Ilardi Terry J.
International Business Machines - Corporation
LandOfFree
Scanning acoustic microscope does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scanning acoustic microscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning acoustic microscope will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1010247