Abstract:
The invention is a silicon pressure micro-sensing device and the fabrication process thereof. The silicon pressure micro-sensing device includes a pressure chamber, and is constituted of a P-type substrate with a taper chamber and an N-type epitaxial layer thereon. On the N-type epitaxial layer are a plurality of piezo-resistance sensing units which sense deformation caused by pressure. The fabrication pressure of the silicon pressure micro-sensing device includes a step of first making a plurality of holes on the N-type epitaxial layer to reach the P-type substrate beneath. Then, by an anisotropic etching stop technique, in which etchant pass through the holes, a taper chamber is formed in the P-type substrate. Finally, an insulating material is applied to seal the holes, thus attaining the silicon pressure micro-sensing device that is able to sense pressure differences between two ends thereof.
Abstract:
A stacked die package for an electromechanical resonator system includes a chip that contains an electromechanical resonator bonded onto the control chip for the electromechanical resonator by a thermally and/or electrically conductive epoxy. In various embodiments, the electromechanical resonator can be a micro-electromechanical system (MEMS) resonator or a nano-electromechanical system (NEMS) resonator. Packaging configurations that may include the chip that contains the electromechanical resonator and the control chip include chip-on-lead (COL), chip-on-paddle (COP), and chip-on-tape (COT) packages. The stacked die package provides small package footprint and/or low package thickness, as well as low thermal resistance and a robust conductive path between the chip that contains the electromechanical resonator and the control chip.
Abstract:
The invention relates to a layer system comprising a silicon layer (11), at least some sections of whose surface are provided with a passivation layer (17), the latter (17) consisting of a first, at least predominantly inorganic sub-layer (14) and a second sub-layer (15). The latter (15) is composed of an organic compound comprising silicon or a similar material. The second sub-layer (15) in particular takes the form of a self-assembled monolayer. The invention also relates to a method for producing a passivation layer (17) on a silicon layer (11), whereby a first inorganic sub-layer (14) is produced on said layer (11) and a second sub-layer (15), containing an organic compound containing silicon or consisting of said compound, is produced on at least some sections of the first sub-layer (14), whereby the sub-layers form the passivation layer (17). The inventive layer system or the inventive method are particularly suitable for producing cantilever structures in silicon.
Abstract:
A layer system with a silicon layer (11) is disclosed, on which a surface passivation layer (17) is at least partly applied. The passivation layer (17) comprises a first at least extensively inorganic partial layer (14) and a second at least extensively polymeric partial layer (15). A method for production of a passivation layer (17) on a silicon layer (11) is also disclosed, whereby a first inorganic partial layer (14) is applied to the silicon layer (11), an intermediate layer applied to the above and on the intermediate layer a second polymeric partial layer (15) is applied to form the passivation layer (17). The production of the intermediate layer is achieved, whereby in the surface region thereof adjacent to the first partial layer (14), the composition thereof is the same as the first partial layer (14) and in the surface region thereof adjacent to the second partial layer (15) the composition thereof is the same as the second partial layer (15) and that the composition of the intermediate layer varies continuously or stepwise from the composition corresponding to the first partial layer to the composition corresponding to the second partial layer. The disclosed layer system or the disclosed method are particularly suitable for the production of self-supporting structures in silicon.
Abstract:
Es wird ein Schichtsystem mit einer Siliziumschicht (11) vorgeschlagen, auf der zumindest bereichsweise oberflächlich eine Passivierschicht (17) aufgebracht ist, wobei die Passivierschicht (17) eine erste, zumindest weitgehend anorganische Teilschicht (14) und eine zweite Teilschicht (15) aufweist, wobei die zweite Teilschicht (15) aus einer organischen Verbindung mit Silizium besteht oder ein derartiges Material enthält. Insbesondere ist die zweite Teilschicht (15) in Form einer sogenannten "self assembled monolyer" aufgebaut. Weiter wird ein Verfahren zur Erzeugung einer Passivierschicht (17) auf einer Siliziumschicht (11) vorgeschlagen, wobei auf der Siliziumschicht (11) eine erste, anorganische Teilschicht (14) und auf der ersten Teilschicht (14) zumindest bereichsweise eine zweite, eine organische Verbindung mit Silizium enthaltende oder daraus bestehende Teilschicht (15) erzeugt wird, die die Passivierschicht (17) bilden. Das vorgeschlagene Schichtsystem oder das vorgeschlagene Verfahren eignet sich besonders bei der Erzeugung von freitragenden Strukturen in Silizium.
Abstract:
Es werden adhäsionsverminderte mikromechanische Bauelemente (4';40) rnit einer Größe von in der Regel weniger als 1 mn, derartige Bauelemente enthaltende Einrichtungen, die Herstellung und Verwendung dieser Bauelemente sowie ein Verfahren zur Behandlung der Oberflächen von mikromechanischen Bauelementen(4';40) bereitgestellt, wobei das Verfahren den Schritt umfasst, dass die elektronischen Störstellen des verwendeten Halbleitermaterials im Wege einer Oberflächenbehandlung verändert werden. Derartige Bauelemente werden beispielsweise in Beschleunigungssensoren verwendet.
Abstract:
A method is provided for fabricating a MEMS device on a workpiece by forming a mercaptain mask (306) on a gold structure (309). The mask (306) is used to inhibit anodic etching of polysilicon structures (303) during the acid etch process that is used to remove the oxide dielectric layer from the workpiece to expose the polysilicon structures of the MEMS device (303) to allow their movement. The mercaptain can be utilised to adhere to the exposed gold surface (309) to form a self-mask (306) on the gold surface (309). As such, a workpiece having numerous gold surfaces, such as numerous optomechanical switches, each having various types of gold structures, can be placed in a mercaptain solution. The mercaptain selectively coats the gold surfaces to form self-adhering mercaptain masks on all the exposed gold surfaces.
Abstract:
PURPOSE: A display device and method thereof are provided to improve throughput by removing an insulation film on a terminal using typically used dry etching process without using any special process. CONSTITUTION: Multiple pixels are disposed in a matrix shape on a substrate, and include a switching device and a MEMS shutter. The MEMS shutter is operated with a switching device. Multiple terminals are disposed on a substrate, and connect to an external terminal. A MEMS shutter has a shutter having an opening, a first spring connected to a shutter, a first anchor connected to a first spring, a second spring and a second anchor connected to a second spring.
Abstract:
The invention relates to a layer system comprising a silicon layer (11), at least some sections of whose surface are provided with a passivation layer (17), the latter (17) consisting of a first, at least predominantly inorganic sub-layer (14) and a second sub- layer (15). The latter (15) is composed of an organic compound comprising silicon or a similar material. The second sub-layer (15) in particular takes the form of a self-assembled monolayer. The invention also relates to a method for producing a passivation layer (17) on a silicon layer (11), whereby a first inorganic sub-layer (14) is produced on said layer (11) and a second sub-layer (15), containing an organic compound containing silicon or consisting of said compound, is produced on at least some sections of the first sub-layer (14), whereby the sub-layers form the passivation layer (17). The inventive layer system or the inventive method are particularly suitable for producing cantilever structures in silicon.
Abstract:
A layer system with a silicon layer (11) is disclosed, on which a surface passivation layer (17) is at least partly applied. The passivation layer (17) comprises a first at least extensively inorganic partial layer (14) and a second at least extensively polymeric partial layer (15). A method for production of a passivation layer (17) on a silicon layer (11) is also disclosed, whereby a first inorganic partial layer (14) is applied to the silicon layer (11), an intermediate layer applied to the above and on the intermediate layer a second polymeric partial layer (15) is applied to form the passivation layer (17). The production of the intermediate layer is achieved, whereby in the surface region thereof adjacent to the first partial layer (14), the composition thereof is the same as the first partial layer (14) and in the surface region thereof adjacent to the second partial layer (15) the composition thereof is the same as the second partial layer (15) and that the composition of the intermediate layer varies continuously or stepwise from the composition corresponding to the first partial layer to the composition corresponding to the second partial layer. The disclosed layer system or the disclosed method are particularly suitable for the production of self-supporting structures in silicon.