Abstract:
An integrated circuit that comprises a substrate and a structured layer on the substrate. The structured layer comprises an opening to the substrate, a first field and a second field on the substrate, wherein the first field and the second field, at least in part, overlap with the opening. The integrated circuit further comprises a first material in the area of the first field and a second material in the area of the second field. The first material impedes a wetting by a solder material, and the second provides a wetting by the solder material.
Abstract:
A BAW device includes a semiconductor substrate with a surface region, an insulating layer formed on the surface region and a piezoelectric layer sandwiched by a first and second electrode, wherein the second electrode is formed on the insulating layer. The surface region is performed such that a voltage dependence of a capacitance between the substrate and the second electrode is substantially suppressed.
Abstract:
Apparatus for housing a micromechanical structure, and a method for producing the housing. The apparatus has a substrate having a main side on which the micromechanical structure is formed, a photo-resist material structure surrounding the micromechanical structure to form a cavity together with the substrate between the substrate and the photo-resist material structure, wherein the cavity separates the micromechanical structure and the photo-resist material structure and has an opening, and a closure for closing the opening to close the cavity.
Abstract:
A method for housing an electronic component in a device package includes providing a first substrate, wherein the electronic component is arranged in a component area on a first main surface of the first substrate, and wherein first contact pads are arranged outside of the component area, forming an open top frame structure around the component area on the first main surface of the first substrate, providing a second substrate having second contact pads, arranged symmetrically to the first contact pads and electrically and mechanically connecting the first main surface of the first substrate with the first main surface of the second substrate, so that the frame structure and the second substrate from a cavity or recess around the electronic component on the first substrate.
Abstract:
A device with contact elements. One embodiment provides an electrical device including a structure defining a main face. The structure includes an array of cavities and an array of overhang regions, each overhang region defining an opening to one of the cavities. The electrical device further includes an array of contact elements, each contact element only partially filling one of the cavities and protruding from the structure over the main face.
Abstract:
One embodiment of the present invention relates to method for the concurrent deposition of multiple different crystalline structures on a semiconductor body utilizing in-situ differential epitaxy. In one embodiment of the present invention a preparation surface is formed, resulting in two distinct crystalline regions, a monocrystalline silicon substrate region and an isolating layer region. A monocrystalline silicon layer and an amorphous silicon layer are concurrently formed directly onto the preparation surface in the monocrystalline silicon substrate region and the isolating layer region, respectively. Deposition comprises the formation of two or more sub-layers. The process parameters can be varied for each individual sub-layer to optimize deposition characteristics.
Abstract:
An apparatus comprises a device layer structure, a device integrated into the device layer structure, an insulating carrier substrate and an insulating layer being continuously positioned between the device layer structure and the insulating carrier substrate, the insulating layer having a thickness which is less than 1/10 of a thickness of the insulating carrier substrate. An apparatus further comprises a device integrated into a device layer structure disposed on an insulating layer, a housing layer disposed on the device layer structure and housing the device, a contact providing an electrical connection between the device and a surface of the housing layer opposed to the device layer structure and a molding material surrounding the housing layer and the insulating layer, the molding material directly abutting on a surface of the insulating layer being opposed to the device layer structure.
Abstract:
In a method for producing a protective cover for a device formed in a substrate, at first a sacrificial structure is produced on the substrate, wherein the sacrificial structure comprises a first portion covering a first area of the substrate including the device and a second portion extending from the first portion into a second area of the substrate including no device. Then a first cover layer is deposited that encloses the sacrificial structure such that the second portion of the sacrificial structure is at least partially exposed. Then the sacrificial structure is removed, and the structure formed by the removal of the sacrificial structure is closed.
Abstract:
Apparatus for housing a micromechanical structure, and a method for producing the housing. The apparatus has a substrate having a main side on which the micromechanical structure is formed, a photo-resist material structure surrounding the micromechanical structure to form a cavity together with the substrate between the substrate and the photo-resist material structure, wherein the cavity separates the micromechanical structure and the photo-resist material structure and has an opening, and a closure for closing the opening to close the cavity.
Abstract:
A contact spring configuration for contacting semiconductor wafers is provided. At least one strip-type contact spring is provided on a substrate. The contact spring is fixed to a surface of the substrate on one side and is composed of a semiconductor material having a stress gradient which causes a permanent bending of the contact spring. The stress gradient in the semiconductor material is brought about by two semiconductor layers which are connected to one another and are mechanically strained differently. The different strains can be set by different doping or by deposition temperatures of different magnitude during the deposition of the semiconductor layers. The contact springs provide a good ohmic contact in particular with contact regions of a semiconductor wafer that are composed of a semiconductor material.