Coating method and film layer thereof, and coating fixture and application thereof

A coating chucking appliance, comprising:

• a chucking body;
• and at least one shielding component configured on the chucking body;
• wherein the chucking body has at least one installing chamber for installing at least one substrate, and a position of the shielding component corresponds to a position of at least one electronic component on a surface of the substrate;
• wherein after installation, the shielding component correspondingly shields the electronic component on the surface of the substrate to meet a shielding requirement of the electronic component on the surface of the substrate when coating the substrate wherein the shielding component comprises at least one suspended shielding part, and a position of the suspended shielding part corresponds to a position of a thin coating electronic component on the substrate and the suspended shielding part maintains a coating gap relative to the thin coating electronic component to achieve a suspended shielding, wherein the substrate is installed to the coating chucking appliance to form a thick film layer and a thin film layer simultaneously.