Patent ID: 8941247
Filing Date: 2015-01-27
Classification: B81B,B81C,H01L

Abstract:
1. A packaging structure for a microelectromechanical-system (MEMS) resonator system, the packaging structure comprising: a lead frame including an electrical lead having a mounting surface and an electrical contact surface; a resonator-control chip electrically coupled to the electrical lead through a first electrically conductive bump [CS1]disposed between a first surface of the resonator-control chip and the mounting surface of the electrical lead; a MEMS resonator chip disposed in a stacked die configuration with the resonator-control chip and electrically coupled to the resonator-control chip through a second electrically conductive bump disposed between the first surface of the resonator-control chip and a first surface of the MEMS resonator chip; and a package enclosure that encloses the MEMS resonator chip, resonator-control chip and mounting surface of the electrical lead and that exposes the contact surface of the electrical lead at an external surface of the packaging structure.