Patent ID: 11919039
Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 8:
9. The acoustic transduction unit according to claim 8, wherein a material of the first dielectric pattern is the same as that of an etching barrier layer, which is between the first electrode and the support pattern;
wherein the first dielectric pattern extends from the first apex of the first dielectric pattern in a direction from the center toward the edge of the vibrating cavity, such that the thickness of the first dielectric pattern gradually increases from the first apex to the edge of the first dielectric pattern; and
wherein the acoustic transduction unit comprises the second dielectric pattern, and a material of the second dielectric pattern is the same as that of the vibrating diaphragm pattern; and
the second dielectric pattern and the vibrating diaphragm pattern are connected to each other and have a one-piece structure.