Abstract:
PROBLEM TO BE SOLVED: To provide for a method and device for fabricating microscale and nanoscale structures. SOLUTION: The method for fabrication of microscopic structures that uses a beam process, such as beam-induced decomposition of a precursor, to deposit a mask in a precise pattern and then a selective, plasma beam is applied, comprising the steps of first creating a protective mask upon surface portions of a substrate using a beam process such as an electron beam, focused ion beam (FIB), or laser process, and secondly etching unmasked substrate portions using a selective plasma beam etch process. Optionally, a third step comprising the removal of the protective mask may be performed with a second, materially oppositely selective plasma beam process. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a MEMS structural body which can improve a yield by preventing an electric short circuit accident when an wafer substrate and a movable portion, to which different polarities are given, are inevitably brought into contact with each other, and which has a low manufacturing cost. SOLUTION: The MEMS structural body is composed of a wafer base having an oxide film arranged between lower silicon layers, a fixed portion to be integrally connected to the wafer base, and a movable portion arranged on the fixed portion so as to float. The MEMS structural body includes a floating space (R) formed on the lower silicon layer (113) with a constant depth by the dry etching such that the movable portion (100b) is floated by the etching gas supplied from the etching hole which is formed on an upper silicon layer (111) by the primary dry etching, and from which etching hole, an oxide film on the bottom surface is removed by a secondary dry etching, and a short circuit preventing oxide film (112a) remaining on the lower surface of the movable portion (100b) so as to correspond to the lower silicon layer (113) across the floating space (R). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To prevent a movable portion from sticking on a portion around itself, in a manufacturing method of a semiconductor device provided with a laminate consisting of a first semiconductor layer and a second semiconductor layer laminated thereon through an insulating layer, and a movable section formed on the second semiconductor layer and being displaceable in response to application of dynamic quantity. SOLUTION: In this method of manufacturing a semiconductor device, since an etching speed in a trench forming process is higher than that in a movable section forming process, the amount of a protective film formed on the rear surface of the movable portion 20 as a mask can be reduced in a protective film forming process. In this way, in an etching process, even if the etching ions repelled on the surface of a charged oxide film 13 collide with the rear surface of the portion 20, needle-like projections can be prevented from being formed on the rear surface of the portion 20, and the sticking between the section 20 and the film 13 can be suppressed. COPYRIGHT: (C)2003,JPO
Abstract:
Ressort spiral (100) apte à être couplé mécaniquement à un balancier, comprenant au moins une lame (102) enroulée en forme de spirale, la lame (102) comprenant au moins l'un des matériaux suivants : grenat d'aluminate de terre rare, alexandrite, langasite, langatate, spinelle, saphir, fluorine, YLF, et dans lequel la lame (102) a une hauteur h comprise entre 100 μm et 150 μm, une largeur e comprise entre 30 μm et 50 μm, et un espacement p entre deux spires voisines du ressort spiral (100) comprise entre 150 μm et 250 μm.
Abstract:
Die Erfindung betrifft ein Herstellungsverfahren für ein mikromechanisches Bauteil, das wenigstens die folgenden Schritte umfasst: Herausstrukturieren einer Grundstruktur (10) mindestens einer Komponente des mikromechanischen Bauteils aus zumindest einer kristallinen Schicht (12) eines Substrats mittels eines kristallorientierungs-unabhängigen Ätzschritts, und Herausarbeiten mindestens einer Fläche (18) einer definierten Kristallebene (20) aus der Grundstruktur (10) der mindestens einen Komponente mittels eines kristallorientierungs-abhängigen Ätzschritts, wobei der kristallorientierungs- abhängige Ätzschritt ausgeführt wird, für welchen die jeweilige definierte Kristallebene (20), nach welcher die mindestens eine an der Grundstruktur (10) herausgearbeitete Fläche (18) ausgerichtet wird, von allen Kristallebenen die niedrigste Ätzrate aufweist. Des Weiteren betrifft die Erfindung ein mikromechanisches Bauteil.
Abstract:
The present invention relates to a glass having a surface with improved water-repellency or hydrophobicity and low reflectance, and a fabrication method thereof. A technology is employed, in which a thin film containing silicon or silicon oxide is formed on the glass surface, the nano-structures are formed by selective etching treatment using a reactive gas such as CF 4 or the like to provide superhydrophobicity and low reflectance properties, and a material with low surface energy is coated onto the nano-structures. The fabrication method of the low-reflective and superhydrophobic or super water-repellent glass may execute deposition and etching processes for the glass having the superhydrophobicity and the low reflectance, and provide excellent superhydrophobicity and low reflectance to the surface of the glass which was difficult to be treated. Also, the method is sustainable due to non-use of a toxic etching solution during these processes. The superhydrophobic and low-reflective glass can be applied to various fields, such as high-tech smart devices, vehicles, home appliances and so forth.
Abstract:
The present invention relates to a method for forming Si grass structure comprising: forming a silicon well (100); and etching the silicon well to form silicon grass structure (200); characterized in that the step of forming silicon well (100) is conducted using a standard deep reactive ion etching Bosch process using photoresist as the masking material. The present invention provides more surface area of the sensing membrane thus increasing the performance of a sensor.