Patent ID: 11971364
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A semiconductor device inspection device, comprising:
an optical system configured to irradiate an area to be inspected of a semiconductor device with light;
an irradiation portion setter configured to set a plurality of portions in the area to be inspected as a plurality of irradiation portions of inspection irradiation for irradiating the area to be inspected with light while a test signal is being input to the semiconductor device, wherein each of the plurality of irradiation portions is located in each of a plurality of regions obtained by equally dividing the area to be inspected into four equal parts, and the irradiation portion setter is configured to set a center of each of the plurality of regions as a portion to be irradiated in the inspection irradiation;
an irradiation controller configured to control the optical system to perform the inspection irradiation on the irradiation portion set by the irradiation portion setter in the semiconductor device to which the test signal is being input;
an analyzer configured to output information indicating presence or absence of a defective portion in an entire of the area to be inspected, based on an output signal electrically output from the semiconductor device while the inspection irradiation is being performed by the optical system on the irradiation portion set by the irradiation portion setter; and
a scan determiner configured to determine whether or not the inspection irradiation is to be further performed on the area to be inspected by the optical system after the analyzer outputs the information,
wherein, when the scan determiner determines that the inspection irradiation is to be further performed, the irradiation portion setter newly sets at least one portion in the area to be inspected, which is different from a portion already set as the irradiation portion and irradiated with light, as the irradiation portion, and
the irradiation controller controls the optical system to perform the inspection irradiation on the irradiation portion newly set by the irradiation portion setter.