Patent ID: 11970388
Assignee: WINBOND ELECTRONICS CORP.
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A package structure, comprising:
a substrate having a recess;
a first microelectromechanical system (MEMS) chip formed on the substrate, wherein the first MEMS chip has a through-substrate via, a lower surface of the first MEMS chip has a first sensor or a microactuator formed on the through-substrate via, and the first sensor or the microactuator is located in the recess;
a first intermediate chip formed on the first MEMS chip, wherein the first intermediate chip has a through-substrate via, the first intermediate chip comprises a signal conversion unit, a logic operation unit, a control unit, or a combination thereof;
a second MEMS chip formed on the first intermediate chip, wherein the second MEMS chip has a through-substrate via, an upper surface of the second MEMS chip has a second sensor or a microactuator formed on the through-substrate via, and the package structure comprises at least one of the first sensor and the second sensor, and
a first capping plate formed on the second MEMS chip, wherein the first capping plate provides a receiving space, and the second sensor or the microactuator located on the upper surface of the second MEMS chip is located in the receiving space.