Patent ID: 9090963
Filing Date: 2015-07-28
Classification: C23C

Abstract:
1. A mask for use in an optical evaporation coating to adjust the film thickness on the surface of the substrates , the mask comprising: a main shaft; a plurality of horizontal rods perpendicularly fixed to the main shaft; a plurality of pairs of shielding sheets slidably connected to the horizontal rods; and a plurality of adjustment members, wherein each adjustment member comprises a handle, a stem and a head portion, the stem protrudes from the handle and intersects with and passes through the main shaft, the head portion is formed at an end of the stem and substantially perpendicular to the stem and set between one of the pairs of shielding sheets; the handle is operable to rotate the stem relative to the main shaft such that the handle rotates to drive the one pair of shielding sheets to slide along a corresponding one of the horizontal rods synchronously.