Abstract:
A method for drying an object, having a polymeric film, wherein the object is submerged in a rinse liquid. The object is removed from the rinse liquid and the object is placed in a solvent bath before a sufficient amount of the rinse liquid can evaporate from the object. The density of a solvent in the solvent bath depends on a direction of orientation of the polymeric film with respect to a force. The object is removed from the solvent bath. A drying process is performed.
Abstract:
According to method embodiments of the present invention, a method for cleaning a microelectronic substrate includes placing the substrate in a pressure chamber. A process fluid including dense phase CO 2 is circulated through the chamber such that the process fluid contacts the substrate. The phase of the CO 2 is cyclically modulated during at least a portion of the step of circulating the process fluid.
Abstract:
The integrated micromechanical sensor device contains a body with a substrate (1) on which are arranged an insulating layer (2) and on top of that a monocrystal silicon layer (3), where the silicon layer has cavities extending to the surface of the insulating layer and the walls of the cavities as well as the side of the silicon layer facing the insulating layer have a first doping (n ) and the silicon layer has a second doping (n ) at least over part of its remaining surface, where the silicon layer has a transistor in a first region (TB) and a sensor in a second region (SB), the insulating layer (2) being partially removed under the second region for this purpose. A sensor device of this kind has substantial advantages over known devices in terms of its properties and its production process.
Abstract:
Es wird ein Verfahren zur Abscheidung einer Anti-Haftungsschicht auf eine Oberfläche mikromechanischer Strukturen (5a; 7a) auf einem Substrat (Sub) vorgeschlagen, wobei das abzuscheidende Material oder Precursormaterial in einem Lösungs- und Transportmedium den Strukturen (5a; 7a) zugeführt wird. Als Lösungs- und Transportmedium ist das superkritische CO 2 -Fluid vorgesehen. Die Abscheidung des Materials oder Precursormaterials wird durch eine physikalische Zustandsänderung des CO 2 -Fluids oder durch eine Oberflächenreaktion zwischen der Oberfläche und dem Precursormaterial hervorgerufen. Das Verfahren ermöglicht eine nachträgliche Beschichtung der mikromechanischen Strukturen (5a; 7a) in einer Kaverne (14) oder in einem Hohlraum nach deren Verkappung, wobei das abzuscheidende Material über Zugangskanäle (15) oder Perforationslöcher zugeführt wird.
Abstract:
One embodiment of the present invention provides a method for the removal of organic sacrificial layers from a micro-electromechanical structure including the steps of: immersing the structure in at least one bath of at least a first organic solvent, thereby removing substantially all of the organic sacrificial layers; rinsing the structure in a bath of a second organic solvent; transferring the structure to a pressure chamber without substantial evaporation of the second organic solvent wherein the structure is immersed in a second bath of the second organic solvent; closing, pressurizing and filling the pressure chamber with liquid carbon dioxide whereby the second solvent is substantially displaced; heating the liquid carbon dioxide above its critical temperature, thereby permitting the carbon dioxide to undergo a phase change to the supercritical phase; venting the carbon dioxide to the atmosphere.
Abstract:
One embodiment of the present invention provides a method for the removal of organic sacrificial layers from a micro-electromechanical structure including the steps of: immersing the structure in at least one bath of at least a first organic solvent, thereby removing substantially all of the organic sacrificial layers; rinsing the structure in a bath of a second organic solvent; transferring the structure to a pressure chamber without substantial evaporation of the second organic solvent wherein the structure is immersed in a second bath of the second organic solvent; closing, pressurizing and filling the pressure chamber with liquid carbon dioxide whereby the second solvent is substantially displaced; heating the liquid carbon dioxide above its critical temperature, thereby permitting the carbon dioxide to undergo a phase change to the supercritical phase; venting the carbon dioxide to the atmosphere.
Abstract:
기판 상에 실리콘 산화막으로 이루어진 희생층(sacrificial layer) 및 상기 구조층(structural layer)을 연속적으로 형성하는 막 적층(film-deposition) 단계; 및 처리 유체를 이용한 에칭에 의하여 상기 희생층을 제거하여 상기 기판과 상기 구조층의 사이에 공극부를 형성하는 공극부 형성 단계, 및 세정 단계를 포함하는 방법에 의하여, 기판, 및 상기 기판 상에 공극부를 통하여 형성되고 미소 가동부(micro movable element)로서 기능하는 구조층(structural layer)을 포함하는 구조체를 제작한다. 불소 화합물, 수용성 유기용매 및 물을 함유하는 초임계 이산화탄소 유체를 처리 유체로서 사용함으로써, 구조체의 손상이 없이 소량의 처리 유체를 이용하여 단시간 내에 희생층을 제거한다.