LEED for SEM

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United States of America Patent

PATENT NO 9576770
APP PUB NO 20160071690A1
SERIAL NO

14888414

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Abstract

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A low energy electron diffraction (LEED) detection module (100) includes: a first vacuum chamber for receiving diffracted electrons from a specimen (109); a larger second vacuum chamber connected to the first vacuum chamber to receive the diffracted electrons that have been transported through the first vacuum chamber; a two-dimensional electron detector disposed in the second vacuum chamber to detect the diffracted electrons; a potential shield (106) disposed generally along an inner surface of the first vacuum chamber and an inner surface of the second vacuum chamber; a magnetic lens (105) to expand a beam of the diffracted electrons that have been transported through the first vacuum chamber towards the two-dimensional electron detector; and a generally plane-shaped energy filter (103) to repel electrons having an energy lower than the probe beam (203) of electrons that impinges on the specimen (109).

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Patent Owner(s)

Patent OwnerAddress
OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATIONKUNIGAMI-GUN OKINAWA 904-0495

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shintake, Tsumoru Okinawa, JP 2 4

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