Abstract:
The invention relates to a micromechanical component comprising: a substrate (1); a monocrystalline layer (10), which is provided above the substrate (1) and which has a membrane region (10a); a cavity (50) that is provided underneath the membrane region (10a), and; one or more porous regions (150; 150'), which are provided inside the monocrystalline layer (10) and which have a doping (n ; p ) that is higher than that of the surrounding layer (10).
Abstract translation:本发明涉及一种微机械部件,该微机械部件包括:衬底(1); 设置在所述衬底(1)上方并且具有膜区域(10a)的单晶层(10); 设置在膜区域(10a)下方的空腔(50),以及; 设置在单晶层(10)内并且具有比周围层(10)高的掺杂(n +; p +)的一个或多个多孔区域(150; 150'), 。
Abstract:
The invention relates to providing a columnar structure having a uniform shape and excellent heat resistance and mechanical strength that is formed on a substrate of silicon, a method of preparing the structure, and a DNA separation device prepared by the method. The structure has, on a substrate (11) made of silicon, columns (12) the main surface of which is covered with a thermally oxidized film (16). The columns (12) are made of the thermally oxidized film (16) only or of the thermally oxidized film (16) and silicon. The thermally oxidized film formed on the columns (12) is connected to those formed on the surface or inside of the substrate (11).
Abstract:
The present invention provides a micro-electro-mechanical device with a recessed micromechanical structure and to a method of fabrication thereof. The present invention also provides silicon wafers provided with recessed micromechanical structures, which are useful in the field of micro-electro-mechanical systems. The present invention also provides a method for fabrication of micro-electro-mechanical device using micromachining techniques.
Abstract:
A substrate and a method for producing the same, and a thin film structure, in which differential stress can be reduced between an oxide film on the substrate and other films formed on the oxide film at the time of thermal shrinkage while shortening the time required for forming a thick oxide film. For that purpose, the substrate (1) comprises a substrate body (31) formed of silicon, and an oxide film (33) for a base formed thereon. The oxide film (33) comprises a first oxide film (61) of a thermal SiO 2 film formed through thermal oxidation of silicon in the substrate body (31), and a second oxide film (63) of a high temperature oxide film deposited thereon.
Abstract:
A method of processing a semiconductor substrate having a first conductivity type includes, in part, forming a first implant region of a second conductivity type in the semiconductor substrate where the first implant region is characterized by a first depth, forming a second implant region of the first conductivity type in the semiconductor substrate where the second implant region is characterized by a second depth smaller than the first depth, forming a porous layer within the semiconductor substrate where the porous layer is adjacent the first implant region, and growing an epitaxial layer on the semiconductor substrate thereby causing the porous layer to collapse and form a cavity.
Abstract:
Es wird ein mikromechanisches Bauelement mit einem Funktionsbereich und einem Trägersubstrat vorgeschlagen, wobei das Trägersubstrat eine Grabenstruktur parallel zur Haupterstreckungsebene des Trägersubstrats aufweist, wobei die Oberfläche der Grabenstruktur eine Überdeckung durch eine erste Isolationsschicht aufweist und wobei die Grabenstruktur eine obere Oberflächenebene parallel zur Haupterstreckungsebene und verlaufend durch eine Oberkante des Trägersubstrats der Grabenstruktur aufweist und wobei ferner wenigstens ein Graben der Grabenstruktur mit einem Halbleitermaterial gefüllt ist, wobei der Funktionsbereich in einer zur Haupterstreckungsebene senkrechten Richtung unterhalb der oberen Oberflächenebene des Trägersubstrats angeordnet ist.
Abstract:
The invention relates to methods for producing insulation structures for micromechanical sensors according to a monocrystalline surface technique. According to known methods, silicon structures defined by deep trenches are etched and the lower side thereof facing the substrate is exposed by a release etch step. The filling of said trenches with a dielectrically insulating material, such as silicon dioxide, enables the silicon structure to be solidly clutched on three sides. The invention is based on the fact that instead of filling trenches, thin-walled silicon is converted into an electrically non-conductive material. This can be carried out, for example, by means of thermal oxidation of narrow silicon sections previously exposed by trenches. In a minimal configuration, two trenches (holes) must be etched per section with the desired structural depth. The interlying silicon section must be narrow enough to be able to be fully thermally oxidised.