Patent ID: 11874319
Assignee: TOKYO ELECTRON LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An inspection apparatus comprising:
a stage on which a substrate having an inspection target is placed;
a probe card having probes that supply a current to the inspection target;
a light irradiator to irradiate light to heat the substrate, the light irradiator including a plurality of light sources partitioned into a plurality of regions; and
a controller to control the light irradiator configured to execute:
heating the inspection target by the light from the light irradiator before start of an inspection of the inspection target, and
switching a control of the light irradiator from heating the inspection target to heating an outer peripheral portion of the inspection target by the light from the light irradiator based on a signal that indicates start of the inspection of the inspection target,
wherein heating the inspection target includes irradiating light from both a light source in a region including a position of the inspection target, among the plurality of regions, and a light source in a region surrounding the region including the position of the inspection target, and
wherein the heating the outer peripheral portion of the inspection target includes turning off the light source in the region including the position of the inspection target, thereby not irradiating light to the inspection target during the inspection of the inspection target.