Abstract:
PROBLEM TO BE SOLVED: To provide a fine structure formation method, using isotropic etching, by which controllability of etching in fine processing is improved, and even a large-sized substrate can be uniformly processed as a result. SOLUTION: The fine structure formation method is provided in which a body to be etched on the surface of which a mask having prescribed openings is disposed, is etched through the openings by using etching liquid and thereby recesses is formed on the surface of the body to be etched, wherein insoluble matter is generated by the reaction of the material contained in the body to be etched with the etching liquid, and then etching is stopped by the insoluble matter accumulated on the exposed surface of the body to be etched. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a wiring board in which a space above a surface region including at least a portion of a wiring line can securely be sealed. SOLUTION: The method includes a first step of forming a metal thin film for wiring lines on a glass substrate 11a, a second step of forming a resist pattern on the metal thin film by using a photomask 20 where a pattern for the wiring lines is formed, and a third step of forming the wiring lines by selectively removing the metal thin film by wet etching using the resist pattern as a mask. When points of the wiring lines joined with frit glass 13 are regarded as joined places, sides (La, Lb, Lc, and Ld) of the pattern for the wiring lines of the photomask 20 are bent in areas corresponding to the joined places. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
An integrated device includes: a first die; a second die coupled in a stacked way on the first die along a vertical axis; a coupling region arranged between facing surfaces of the first die and of the second die, which face one another along the vertical axis and lie in a horizontal plane orthogonal to the vertical axis, for mechanical coupling of the first and second dies; electrical-contact elements carried by the facing surfaces of the first and second dies, aligned in pairs along the vertical axis; and conductive regions arranged between the pairs of electrical-contact elements carried by the facing surfaces of the first and second dies, for their electrical coupling. Supporting elements are arranged at the facing surface of at least one of the first and second dies and elastically support respective electrical-contact elements.
Abstract:
A free-standing microstructure may be formed from an engineered substrate including a first silicon layer, a second silicon layer, and an intermediate layer. The second silicon layer may include a monocrystalline silicon film. The intermediate layer may be between the first silicon layer and the second silicon layer. The intermediate layer may include a silicon- or germanium-based material having a different lattice constant than the first silicon layer or the second silicon layer. The intermediate layer of the free-standing microstructure may further include one or more voids wherein at least a portion of the silicon- or germanium-based material is absent between the first silicon layer and the second silicon layer.
Abstract:
In an embodiment a semiconductor transducer device includes a semiconductor body and a diaphragm having a first layer and a second layer, wherein a main extension plane of the diaphragm is arranged parallel to a surface of the semiconductor body, wherein the diaphragm is suspended at a distance from the semiconductor body in a direction perpendicular to the main extension plane of the diaphragm, wherein the second layer comprises titanium and/or titanium nitride, wherein the first layer comprises a material that is resistant to an etchant comprising fluorine or a fluorine compound, and wherein the second layer is arranged between the semiconductor body and the first layer.
Abstract:
A method includes producing a semiconductor wafer. The semiconductor wafer includes a plurality of microelectromechanical system (MEMS) semiconductor chips, wherein the MEMS semiconductor chips have MEMS structures arranged at a first main surface of the semiconductor wafer, a first semiconductor material layer arranged at the first main surface, and a second semiconductor material layer arranged under the first semiconductor material layer, wherein a doping of the first semiconductor material layer is greater than a doping of the second semiconductor material layer. The method further includes removing the first semiconductor material layer in a region between adjacent MEMS semiconductor chips. The method further includes applying a stealth dicing process from the first main surface of the semiconductor wafer and between the adjacent MEMS semiconductor chips.
Abstract:
The present disclosure relates to removal compositions for at least partially removing post-chemical mechanical polishing (post-CMP) residues from the surface of a microelectronic device. The removal compositions comprise an aqueous base composition and various molybdenum etching inhibitors that reduce the amount of molybdenum removed from the surface of the microelectronic device compared to the aqueous base composition.