Patent ID: 9181084
Filing Date: 2015-11-10
Classification: B81B,B81C,H01L

Abstract:
1. An electronic device package, comprising: a sensor chip, comprising a sensor chip body and a sensing film formed at an upper surface of the sensor chip body without any space between the sensing film and the upper surface of the sensing chip body, wherein a lower surface of the sensor chip body defines a first cavity extending into the sensor chip body in a region below the sensing film; a covering plate having an opening structure covering the sensor chip, wherein the covering plate and the sensor chip have a second cavity therebetween, and the second cavity is over a position corresponding to the sensing film, communicating with the opening structure, wherein the first cavity and the second cavity are separated by the sensor chip body; and a spacer between the covering plate and the sensor chip, surrounding the second cavity, wherein the spacer is horizontally separated from the sensing film by a pressure release region therebetween, and wherein the spacer does not include a cantilevered portion extending towards the second cavity.