Patent ID: 9721814
Date: 2017-08-01
CPC Classifications: H01L

Claim:
1. A substrate processing apparatus for processing a substrate, comprising: a substrate holding part for holding a substrate; a cup part surrounding said substrate holding part; an ejection head disposed above said substrate holding part inside said cup part and for ejecting a processing liquid toward said substrate; a standby pod disposed outside said cup part and in which a lower end portion of said ejection head is housed when said ejection head is on standby; a supply part movement mechanism for moving said ejection head from a position above said substrate holding part to an inspection position above said standby pod; a light emitting part for emitting light along a predetermined light existing plane to irradiate said processing liquid that is ejected from said ejection head toward said standby pod with light when said projection liquid passes through said light existing plane, said ejection head being located at said inspection position; an imaging part for capturing an image of said processing liquid passing through said light existing plane to acquire an inspection image that includes a bright dot appearing on said processing liquid; and a determination part for determining quality of an ejection operation of said ejection head on the basis of said inspection image.