Measuring and testing – Surface and cutting edge testing – Roughness
Reexamination Certificate
2005-04-12
2005-04-12
Cygan, Michael (Department: 2855)
Measuring and testing
Surface and cutting edge testing
Roughness
C250S306000
Reexamination Certificate
active
06877365
ABSTRACT:
In order to provide a scanning probe microscope capable of measuring with high throughput distribution information relating to local characteristics of a sample concurrently with accurate three-dimensional shape information of the sample without damaging the sample, the speed of approach to each measurement location is increased by controlling the approach of the sample and probe by the provision of a high-sensitivity proximity sensor of the optical type. Also, additional information relating to the distribution of material quality on the sample can be obtained without lowering the scanning speed by: applying a voltage to the probe, or measuring the response on vibrating the probe, or detecting the local optical intensity of the sample surface concurrently with obtaining sample height data and concurrently with the contact period with the sample, whilst ensuring that the probe is not dragged over the sample, by bringing the probe into contact with the sample intermittently.
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Nakata Toshihiko
Watanabe Masahiro
Cygan Michael
Hitachi , Ltd.
Townsend and Townsend and Crew
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