Patent Number: 
Section: abstract

An object is to provide a sample holder and a sample mount which allow observation of a sample from many directions in an electron microscope. A sample holder (10) is made for use in a transmission electron microscope (TEM). In the TEM, an electron beam is incident in the Z direction. A sample mount (17) and a sample (SA) affixed on it can be rotated by a motor (12) in the range of 0 to 360xc2x0 on an axis extending in the Y direction which differs from the direction of the electron beam incidence. Therefore the electron beam can enter the observed sample (SA) from many directions, thus allowing observation of the sample (SA) from many directions. It is also possible to FIB-process the sample (SA) in many directions without removing the sample (SA) from the sample holder (10), which facilitates the handling in the FIB processing.