Patent ID: 8505563

Claim:
A wash-target holder to be soaked into a solvent within a wash tank while holding at least one wash-target, comprising a tray formed with a plate-type member, having a wash-target placing face for placing said wash-target, wherein a suction hole is provided at a wash-target placing area of said wash-target placing face of said tray, which is opened through said tray for sucking said wash-target from an opposite side of said wash-target placing area, and said suction hole is formed at a placing position of the wash-target in a size smaller than said placing area of the wash-target and thereby said suction hole is covered by said wash-target placed on the tray, and a surrounding member, comprising a plurality of protrusions, formed around said wash-target, standing up on the wash-target placing face of said tray, wherein said plurality of protrusions are arranged at prescribed intervals in a plurality of rows of protrusions to enable said wash-target to be provided between respective said protrusions.