Substrate characteristic clamp

The utility model provides a substrate characteristic clamp which comprises a base and a baffle, the tangent plane of the baffle and the tangent plane of the base are both rectangular, the situation that a substrate is scratched or broken due to the fact that metal deposition is concentrated when protrusions exist on the clamping surface is avoided, and meanwhile machining and manufacturing are convenient. One side of the baffle is connected with one side of the base to form an L shape, and the L shape is matched with the edge shape of the substrate to fix the substrate; the width of the baffle is larger than that of the base, the contact area between the baffle and the substrate is increased, the shielding suction area is increased, strength is improved, and service life is prolonged. Thetwo side parts, close to the baffle, of the base are concave, so that the accumulated film can be wound and plated to the back surface and is prevented from being concentrated; a through hole used for connection is formed in