Patent ID: 8627837

Claim:
A thin plate member washing apparatus comprising: a lid member; a washing vessel having a top end opening that can be closed by the lid member and in which a liquid can be collected; a thin plate member fixing portion that is supported in the washing vessel and can hold a thin plate member to be washed with the liquid; and a liquid flow generation unit that is provided on the lid member of the washing vessel and is configured to generate a liquid flow over a front surface and a back surface of the thin plate member in order to wash the thin plate member, wherein the liquid flow generation unit includes a pump mechanism that is configured to generate a liquid flow over the front surface and the back surface of the thin plate member by introducing a gas into the liquid in the washing vessel; the washing vessel includes the lid member and a cylindrical vessel having a top end opening that can be closed by the lid member and in which the liquid can be collected; the pump mechanism includes: a bellows pump main body that is disposed on the front surface side of the lid member; and an ejection tube penetrating the lid member from the bellows pump main body and reaching a liquid surface position of the liquid collected in the cylindrical vessel, and a region supporting the thin plate member fixing portion in a position under the ejection tube is provided inside the cylindrical vessel.