Inspection apparatus and inspection method using electromagnetic wave
First Claim
1. An inspection apparatus for performing an inspection using a terahertz wave, comprising:
- an electromagnetic wave generation and irradiation unit which generates a terahertz wave and irradiates the terahertz wave on an inspection object; and
an electromagnetic wave detection unit having a plurality of detection units,wherein the plurality of detection units is arranged so as to detect the terahertz wave which is irradiated by the electromagnetic wave generation and irradiation unit and is transmitted or reflected by interacting with different sites of the inspection object, and is constructed so as to detect the terahertz wave from the different sites in different detection times to acquire a time waveform of the terahertz wave from the inspection object by synthesizing measured values from the plurality of detection units.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is to provide inspection apparatus and method of being able to acquire electromagnetic wave response information of an inspection object at high speed as average information using an electromagnetic wave. An inspection apparatus using an electromagnetic wave 2 includes an electromagnetic wave generation and irradiation unit 9 which generates an electromagnetic wave and irradiates the electromagnetic wave on an inspection object 11, and an electromagnetic wave detection unit 10 having a plurality of detection units. The plurality of detection units is arranged so as to detect the electromagnetic wave which is irradiated by the electromagnetic wave generation and irradiation unit and is transmitted or reflected with interacting with different sites of the inspection object 11, and is constructed so as to detect the electromagnetic wave from the different sites in different detection time or detection frequencies respectively. The inspection apparatus acquires electromagnetic wave response information on the inspection object 11 based on detection signals from the plurality of detection units.
35 Citations
14 Claims
-
1. An inspection apparatus for performing an inspection using a terahertz wave, comprising:
-
an electromagnetic wave generation and irradiation unit which generates a terahertz wave and irradiates the terahertz wave on an inspection object; and an electromagnetic wave detection unit having a plurality of detection units, wherein the plurality of detection units is arranged so as to detect the terahertz wave which is irradiated by the electromagnetic wave generation and irradiation unit and is transmitted or reflected by interacting with different sites of the inspection object, and is constructed so as to detect the terahertz wave from the different sites in different detection times to acquire a time waveform of the terahertz wave from the inspection object by synthesizing measured values from the plurality of detection units. - View Dependent Claims (2, 3, 4)
-
-
5. An inspection method for performing an inspection using a terahertz wave, comprising:
-
a step of generating a terahertz wave and irradiating the terahertz wave on different sites of an inspection object; a step of detecting the terahertz wave, which is transmitted or reflected by interacting with the different sites of the inspection object, by a plurality of detection units in different detection times; and a step of acquiring a time waveform of the terahertz wave from the inspection object by synthesizing measured values from the plurality of detection units. - View Dependent Claims (6, 7, 8, 9)
-
-
10. An inspection apparatus for performing an inspection using a terahertz wave, comprising:
-
a plurality of generation units for generating a terahertz wave; and a plurality of detection units for detecting the terahertz wave which is generated by the plurality of generation units and is transmitted or reflected by an inspection object, wherein the plurality of detection units is arranged so as to detect the transmitted or reflected terahertz wave with different delay times respectively, and a time waveform of the transmitted or reflected terahertz wave is acquired by synthesizing measured values from the plurality of detection units. - View Dependent Claims (11)
-
-
12. An inspection apparatus for performing an inspection using a terahertz wave, comprising:
-
an electromagnetic wave generation and irradiation unit which generates a terahertz wave and irradiates the terahertz wave on an inspection object; and an electromagnetic wave detection unit having a plurality of detection units, wherein the plurality of detection units is arranged so as to detect the terahertz wave which is irradiated by the electromagnetic wave generation and irradiation unit and is transmitted or reflected by interacting with different sites of the inspection object, and is constructed so as to detect the terahertz wave from the different sites in different detection times or detection frequencies respectively to acquire terahertz wave response information from the inspection object based on detection signals from the plurality of detection units, wherein the terahertz wave includes a plurality of frequencies in a frequency domain of 30 GHz to 30 THz and the plurality of frequencies is irradiated on the different sites of the inspection object respectively, and wherein respective transmission intensity ratios of the plurality of frequencies are acquired.
-
-
13. An inspection method for performing an inspection using a terahertz wave, comprising:
-
a step of generating a terahertz wave and irradiating the terahertz wave on different sites of an inspection object; a step of detecting the terahertz wave, which is transmitted or reflected by interacting with the different sites of the inspection object, by a plurality of detection units in different detection times or detection frequencies, respectively; a step of acquiring terahertz wave response information from the inspection object based on detection signals from the plurality of detection units; and a step of screening a specimen when the acquired terahertz wave response information is out of a reference value range which a homogeneous specimen or specimens of the same kind should fulfill.
-
-
14. An inspection method for performing an inspection using a terahertz wave, comprising:
-
a step of generating a terahertz wave and irradiating the terahertz wave on different sites of an inspection object; a step of detecting the terahertz wave, which is transmitted or reflected by interacting with the different sites of the inspection object, by a plurality of detection units in different detection times or detection frequencies, respectively; a step of acquiring terahertz wave response information from the inspection object based on detection signals from the plurality of detection units; and a step of performing feedback control of manufacturing conditions of a production apparatus of a specimen so as to be adjusted in a reference value range when the acquired terahertz wave response information is out of a reference value range which a homogeneous specimen or specimens of the same kind should fulfill.
-
Specification