The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 22, 1988

Filed:

Apr. 16, 1986
Applicant:
Inventors:

Makoto Kato, Kawasaki, JP;

Tetsuo Yokoyama, Nakano, JP;

Jyuntaro Arima, Katsuta, JP;

Shimbu Yamagata, Yokohama, JP;

Mikihiko Oi, Kokubunji, JP;

Toshihiro Furuya, Katsuta, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250307 ; 250310 ; 2504922 ;
Abstract

A sample surface structure measuring method using a scanning type electron microscope featured by scanning the sample surface by an electron beam incident from above the sample surface; measuring the amount of the secondary electrons discharged according to the three-dimensional structure of the sample surface by the scanning; and determining the three-dimensional structure of the sample surface from the amount of the secondary electrons measured based on a relation existing between the predetermined three-dimensional structure and the amount of the secondary electrons discharged.


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