Patent ID: 8820360

Claim:
A tridimensional integrated gas panel apparatus, comprising: multiple branch flow channels in a course of which multiple gas control units such as a valve and a mass flow controller are arranged so as to control gas that flows inside the branch flow channels, a single main flow channel into which the gas from each of the branch flow channels flows and joins, branch flow channel block bodies each of which is in a shape of a lengthy panel whose bottom surface is set as a mounting surface and inside of which one branch flow channel is formed, and a center block body that holds the multiple branch flow channel block bodies so that each longitudinal direction of the multiple branch flow channel block bodies is in parallel mutually with holding surfaces formed on side peripheral surfaces, wherein the main flow channel is formed on the center block body and middle flow channels are formed to extend from a junction set on the main flow channel in a direction toward each of the branch flow channels of the respective branch flow channel block bodies, each of which is mounted on the side peripheral surface of the center block body, only gas from each of multiple middle flow channels flows into the junction on the main flow channel, at one end portion of the center block body in an axial direction, an outlet port connected with an outside pipe is arranged, on each of the branch flow channels, a gas control unit closest to a middle flow channel is arranged at the one end portion of the center block body in the axial direction, and among gas control units arranged on the branch flow channel, the other gas control units excluding the gas control unit closest to the middle flow channel are arranged only on a side opposite to the outlet port with respect to the gas control unit closest to the middle flow path.