Disclosed is a wafer aligner device including a platform, a lifting gripper disposed on the platform to be lifted up or lowered down relative to the platform, a rotating gripper disposed on the platform to be rotated relative to the platform, a rangefinder disposed next to the platform, and a control module. The control module is electrically connected to the lifting gripper, the rotating gripper, and the rangefinder. The control module drives the lifting gripper to be lifted up or lowered down to transfer a wafer between the lifting gripper and the rotating gripper. When the wafer is disposed on the rotating gripper, the control module rotates the rotating gripper relative to the platform and drives the rangefinder to detect a change in a relative distance along an edge of the wafer so as to determine a position of a notch of the wafer.

Provided is a substrate processing apparatus, including: transportation chamber maintained in an atmospheric environment where a substrate is transported; a vacuum processing chamber connected with the transportation chamber through a load lock chamber; a substrate placing table installed in the vacuum processing chamber and having a body part and a surface part that is attachable to/detachable from the body part; a storage unit installed in the load lock chamber or the transportation chamber and configured to receive the surface part; and a transportation mechanism configured to transport the substrate from the transportation chamber to the vacuum processing chamber through the load lock chamber and transport the surface part between the storage unit and the body part of the vacuum processing chamber.

An apparatus for manufacturing a display device includes a jig including a bottom portion on which a circuit portion of a circuit board is seated, a plurality of electromagnets disposed on the bottom portion to be spaced apart from each other, where plurality of electromagnets is male and female coupled to a plurality of protrusions of the circuit board protruding from the circuit portion, and a power supply which supplies current to the plurality of electromagnets.

In a substrate holder, a gas supply part sends out a gas to the space between the lower surface of a substrate and a base surface of a base part to form a radially outward airflow. A division plate is arranged radially outward of the outer peripheral edge of the substrate on the base surface of the base part to surround the substrate. The inner peripheral edge of the division plate and the outer peripheral edge of the substrate face each other in the radial direction with a space in between. The upper surface of the division plate is located below or at the same position in the up-down direction as the upper surface of the substrate. An annular passage is provided between the lower surface of the division plate and the base surface of the base part.

A substrate holder for mounting a substrate, comprising fixing elements for fixing the substrate, wherein the fixing elements can be grouped into zones, and a corresponding method.

A wafer centering adjustment method, comprising: before a wafer (4) is etched, a wafer centering system (1) confirms whether the center of the wafer (4) coincides with the center of the first adsorption platform (3), and if not, the wafer centering system (1) corrects the position of the wafer (4). After the etching of the wafer (4) is completed, a wafer edge cleaning effect detection system (2) confirms whether the center of the wafer (4) coincides with the center of the first adsorption platform (3) during the process of etching, and obtains the second offset data. The wafer edge cleaning effect detection system (2) feeds back the second offset data to the wafer centering system (1). Before etching the next wafer, the wafer centering system (1) obtains the first offset data and preforms correction firstly, and then makes a secondary correction to the position of the wafer according to the second offset data obtained after the previous wafer is etched, thereby realizing a closed-loop control of the centering adjustment apparatus. In addition, the degree of coincidence between the center of the wafer and the center of the first adsorption platform is greatly improved by means of the secondary correction, thereby effectively guaranteeing the uniformity of the edge etching width of the wafer.

A substrate alignment device includes first and second support members that are arranged to be opposite to each other and be spaced apart from each other in a plan view, and respectively support an outer peripheral end of a substrate from a position below the substrate. Further, the substrate alignment device includes a first pressing member that is arranged to be opposite to the first support member in a plan view, and moves the substrate by pressing one portion of the outer peripheral end of the substrate in a first direction directed from the second support member toward the first support member with the substrate supported by the first and second support members. The first support member includes a movement limiter that limits movement of the substrate in the first direction past a predetermined prescribed position.

Provided is a substrate processing apparatus, including: transportation chamber maintained in an atmospheric environment where a substrate is transported; a vacuum processing chamber connected with the transportation chamber through a load lock chamber; a substrate placing table installed in the vacuum processing chamber and having a body part and a surface part that is attachable to/detachable from the body part; a storage unit installed in the load lock chamber or the transportation chamber and configured to receive the surface part; and a transportation mechanism configured to transport the substrate from the transportation chamber to the vacuum processing chamber through the load lock chamber and transport the surface part between the storage unit and the body part of the vacuum processing chamber.

A semiconductor wafer cleaning apparatus is provided. The semiconductor wafer cleaning apparatus includes a spin base, a spindle extending through the spin base, and a clamping member covering the spin base. The spindle includes a mounting part and a supporting part disposed on the mounting part. The mounting part includes an inner projection, the supporting part includes a conical projection, and the conical projection is surrounded by the inner projection. The semiconductor wafer cleaning apparatus further includes a first sealing ring disposed between the spin base and the mounting part.