Abstract:
A wafer-level package for a MEMS integrated device, envisages: a first body integrating a micromechanical structure; a second body having an active region integrating an electronic circuit, coupled to the micromechanical structure; and a third body defining a covering structure for the first body. The second body defines a base portion of the package and has an inner surface coupled to which is the first body, and an outer surface provided on which are electrical contacts towards the electronic circuit; a routing layer has an inner surface set in contact with the outer surface of the second body and an outer surface that carries electrical contact elements towards the external environment. The third body defines a covering portion for covering the package and is directly coupled to the second body for closing a housing space for the first body.
Abstract:
In order to manufacture a packaged device, a die having a sensitive region is bonded to a support, and a packaging mass of moldable material is molded on the support so as to surround the die. During molding of the packaging mass, a chamber is formed, which faces the sensitive region and is connected to the outside environment. To this end, a sacrificial mass of material that may evaporate/sublimate is dispensed on the sensitive region; the packaging mass is molded on the sacrificial mass; a through hole is formed in the packaging mass to extend as far as the sacrificial mass; the sacrificial mass is evaporated/sublimated through the hole.
Abstract:
A method of making an integrated circuit (IC) includes forming circuitry over a top surface of a semiconductor substrate having the top surface and an opposite bottom surface. An antenna is formed in an interconnect layer formed above the semiconductor substrate, where the antenna is coupled to circuitry. A seal ring is formed around a periphery of the interconnect layer. The seal ring is disposed around the antenna and the circuitry. A trench with a solid-state insulating material is formed. The trench extends vertically into the semiconductor substrate and extends laterally across the IC.
Abstract:
A packaged device, wherein at least one sensitive portion of a chip is enclosed in a chamber formed by a package. The package has an air-permeable area having a plurality of holes and a liquid-repellent structure so as to enable passage of air between an external environment and the chamber and block the passage of liquids.