Patent ID: 7705329

Claim:
A charged particle beam processing apparatus that processes a sample using a charged particle beam, comprising: a stage that moves the sample in a desired axial direction; a charged particle beam column that radiates a charged particle beam onto the sample; a control section that controls the charged particle beam column; and a calculation section that calculates a set value H of a depth for line creation (V groove) and a set value W of a width for the line creation (V groove) from an inputted desired line segment length L and a desired depth d for the line creation (V groove), wherein the calculation section calculates a condition that minimizes a processing time t based on an arithmetic expression for a processing time t expressed by the set value H of the depth for the line creation and the set value W of the width for the line creation, length L for the line creation, sputtering yield Y( 0 ) of matter and beam current Ib and thereby obtains the set values H and W, and the control section causes the charged particle beam to be radiated onto the surface of the sample based on the set values H and W calculated by the calculation section and the length L for the line creation so as to form V grooves on a surface of the sample.