Patent ID: 8987840
Filing Date: 2015-03-24
Classification: B81B,H01L

Abstract:
1. A sensor die package comprising: a mechanical layer of silicon that is bonded to a first layer of glass, the mechanical layer comprising a sensor device; a second layer of glass attached to the mechanical layer of silicon; at least one first via in at least one of the first or second layers of glass configured to expose a predefined area on a surface of the mechanical layer of silicon; at least one second via in at least one of the first or second layers of glass, the at least one second via having a depth dimension that is less than a depth dimension of the at least one first via, wherein the at least one second via does not expose the mechanical layer of silicon and does not penetrate through the at least one of the first or second layers of glass in which the at least one second via is defined; and a metallic trace located between the exposed area on the mechanical layer of silicon and at least a portion of the at least one second via, wherein the at least one second via is open to an external surface of the at least one of the first or second layers of glass, the external surface facing away from the mechanical layer.