摘要:
In the case of measuring a pattern having a steep side wall, a probe adheres to the side wall by the van der Waals forces acting between the probe and the side wall when approaching the pattern side wall, and an error occurs in a measured profile of the side wall portion. When a pattern having a groove width almost equal to a probe diameter is measured, the probe adheres to both side walls, the probe cannot reach the groove bottom, and the groove depth cannot be measured. When the probe adheres to a pattern side wall in measurements of a microscopic high-aspect ratio pattern using an elongated probe, the probe is caused to reach the side wall bottom by detecting the adhesion of the probe to the pattern side wall, and temporarily increasing a contact force between the probe and the sample. Also, by obtaining the data of the amount of torsion of a cantilever with the shape data of the pattern, a profile error of the side wall portion by the adhesion is corrected by the obtained data of the amount of torsion.
摘要:
The invention relates to a method and an apparatus for measuring the depths of many fine holes formed in the surface of a sample by etching. Positional information on a plurality of hole patterns is acquired by scanning with a stylus the surface of the sample in which the hole patterns are formed by etching, the depths of the plurality of hole patterns are measured by scanning with the stylus bottom faces of the plurality of hole patterns and the surface of the sample in the respective vicinities of the hole patterns on the basis of the positional information, and information on distribution of the depths of the plurality of hole patterns is displayed on a screen on the basis of information on the measured depths of the plurality of hole patterns and the positional information on each of the hole patterns.
摘要:
In a tip having a carbon nanotube tip used to a scanning probe microscope, its length of the tip is adjusted in a several order of 10 nm and the tip maintains cylindrical shape up to the extremity portion.
摘要:
This scanning probe microscope can accurately obtain information on surfaces of a sample when measuring the sample in a broad range from a slow scanning speed to a fast scanning speed. The scanning probe microscope comprises a cantilever (16) with a probe (15) at its tip, an optical lever mechanism (17,18) for measuring displacement of the cantilever (16), a mechanism for approaching/separating the cantilever against the sample, XY scanning circuit (21), and further comprises a Z axis piezoelectric element (14b) of a tripod for changing the distance between the cantilever and the sample, a control circuit (20) for controlling the distance between the cantilever and the sample to cause a displacement signal s1 obtained from the optical lever mechanism to be identical to a set value s0, and an adder (24) for adding a control signal from the control circuit and a signal based on the deviation between the displacement signal and the set value. The information on the sample surface is obtained from a signal outputted from the adder.
摘要:
A shopping system includes store terminals for registering purchase and sale of items, a store processor for collectively managing the store terminals, electronic shelf labels capable of setting classification, etc., of the items, an item information data base for storing the classification of the items and the electronic shelf labels from information from the electronic shelf labels in such a manner as to correspond to each other, and home terminals for executing edition from the information from the store terminal or the store processor by a predetermined logic. The home terminal in this system accumulates the item information from the store terminal as history, determines a mean purchase interval of individual items, and decides and notifies the items to be purchased to the shopper by purchase item determination process of a next shopping day and a next-of-next shopping day inputted by the shopper.
摘要:
A method an apparatus for measuring the depths of many fine holes formed in the surface of a sample by etching. Positional information on a plurality of hole patterns is acquired by scanning, with a stylus, the surface of the sample in which the hole patterns are formed by etching. The depths of the plurality of hole patterns are measured by scanning, with the stylus, bottom faces of the plurality of hole patterns and the surface of the sample in the respective vicinities of the hole patterns on the basis of the positional information that has been acquired. Information on distribution of the depths of the plurality of hole patterns is displayed on a screen on the basis of information on the measured depths of the plurality of hole patterns and the positional information on each of the hole patterns.
摘要:
The present invention provides a cantilever having a base fixed to an inspecting apparatus, a beam protruding from the base, and a probe fixed to an end of the beam, wherein: the probe is formed by use of a carbon nanotube; and the probe is fixed by metal layers from at least two directions when the cantilever is operated, the probe protrudes in a direction in which a sample is fixed. It is possible to prevent the probe from warping and suppress image failures during observation of a sample.