摘要:
A MEMS device wherein a die of semiconductor material has a first face and a second face. A membrane is formed in or on the die and faces the first surface. A cap is fixed to the first face of the first die and is spaced apart from the membrane by a space. The die is fixed, on its second face, to an ASIC, which integrates a circuit for processing the signals generated by the die. The ASIC is in turn fixed on a support. A packaging region coats the die, the cap, and the ASIC and seals them from the outside environment. A fluidic path is formed through the support, the ASIC, and the first die, and connects the membrane and the first face of the die with the outside, without requiring holes in the cap.
摘要:
Described herein is an assembly for a MEMS sensor device, which envisages: a first body made of semiconductor material, integrating a micromechanical detection structure at a first main face thereof; a cap element, set stacked on the first main face of the first body, above the micromechanical detection structure; and an adhesion structure set between the first body and the cap element, defining a gap in a position corresponding to the micromechanical detection structure. At least one first opening is defined through the adhesion structure in fluidic communication with the gap.
摘要:
A MEMS device wherein a die of semiconductor material has a first face and a second face. A membrane is formed in or on the die and faces the first surface. A cap is fixed to the first face of the first die and is spaced apart from the membrane by a space. The die is fixed, on its second face, to an ASIC, which integrates a circuit for processing the signals generated by the die. The ASIC is in turn fixed on a support. A packaging region coats the die, the cap, and the ASIC and seals them from the outside environment. A fluidic path is formed through the support, the ASIC, and the first die, and connects the membrane and the first face of the die with the outside, without requiring holes in the cap.
摘要:
A MEMS device wherein a die of semiconductor material has a first face and a second face. A diaphragm is formed in or on the die and faces the first surface. A cap is fixed to the first face of the die and has a hole forming a fluidic path connecting the diaphragm with the outside world. A closing region, for example a support, a second cap, or another die, is fixed to the second face of the die. The closing region forms, together with the die and the cap, a stop structure configured to limit movements of the suspended region in a direction perpendicular to the first face.
摘要:
A microfluidic-based sensor, comprising: a semiconductor body, having a first and a second side opposite to one another in a direction; a buried channel, extending within the semiconductor body; a structural layer, of dielectric or insulating material, formed over the first side of the semiconductor body at least partially suspended above the buried channel; and a first thermocouple element, including a first strip, of a first electrical conductive material, and a second strip, of a second electrical conductive material different from the first electrical conductive material, electrically coupled to the first strip. The first thermocouple element is buried in the structural layer and partially extends over the buried channel at a first location. A corresponding manufacturing method is disclosed.
摘要:
A MEMS device wherein a die of semiconductor material has a first face and a second face. A diaphragm is formed in or on the die and faces the first surface. A cap is fixed to the first face of the die and has a hole forming a fluidic path connecting the diaphragm with the outside world. A closing region, for example a support, a second cap, or another die, is fixed to the second face of the die. The closing region forms, together with the die and the cap, a stop structure configured to limit movements of the suspended region in a direction perpendicular to the first face.