Patent ID: 11885004
Assignee: WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A mask module, comprising:
a framework; and
a first strip plate fixed on the framework and extending along a first direction, wherein the first strip plate comprises a first area and a second area, and a width of the first area is greater than a width of the second area in a second direction parallel to a contact surface of the first strip plate and the framework and vertical to the first direction; and
the first strip plate is provided with a first concave-convex structure on one side edge along the first direction, and a second concave-convex structure on another side edge;
wherein the first concave-convex structure comprises an arc-shaped structure at two ends of the first concave-convex structure along the first direction;
wherein the second concave-convex structure comprises an arc-shaped structure at two ends of the second concave-convex structure along the first direction, and comprises one raised structure in a middle of the second concave-convex structure along the first direction;
wherein two ends of the one raised structure along the first direction are arched and convex;
wherein the one raised structure protrudes along the second direction away from the first concave-convex structure on a same first strip plate;
wherein the arc-shaped structure of the first concave-convex structure is arranged at a first surface, the arc-shaped structure and the one raised structure of the second concave-convex structure are arranged at the first surface, and the first surface is parallel to the contact surface of the first strip plate and the framework;
wherein the one raised structure is symmetrical along a first axis of symmetry in the second direction; and the first concave-convex structure is symmetrical along a second axis of symmetry in the second direction; wherein the first axis of symmetry and the second axis of symmetry coincide; wherein the one raised structure and the first strip plate are an integral structure and made of a same material.