Abstract:
This invention relates to the construction of microfabricated devices and, in particular, to types of microfabricated devices requiring thermal isolation from the substrates upon which they are built. This invention discloses vertical thermal isolators and methods of fabricating the vertical thermal isolators. Vertical thermal isolators offer an advantage over thermal isolators of the prior art, which were substantially horizontal in nature, in that less wafer real estate is required for the use of the vertical thermal isolators, thereby allowing a greater density per unit area of the microfabricated devices.
Abstract:
A method of fabricating a semiconductor integrated microactuator device that includes the steps of: bonding or laminating a driving element to a substrate for generating a vertical motion, and coupling a conversion element to the driving element for converting the vertical motion into rotational motion. The method can be effectively used for micro-actuators that utilize Coulomb's force, vibration, and fluid pressure as their driving force.
Abstract:
A device for providing micro positioning having an operating range in the submicron order in the X and Y directions, respectively. Positioning is achieved by a device which includes a driving section bonded to a silicon wafer for applying a driving force to excite vertical motion, and a mechanism for converting this vertical motion into rotational motion. Three types of micro actuators are described herein: one, that uses vibration as its driving force; a second, that uses Coulomb's force; and a third, that utilizes fluid pressure, such as air.
Abstract:
A device for providing micro positioning having an operating range in the submicron order in the X and Y directions, respectively. Positioning is achieved by depositing a pair of aluminum electrodes on a piezoelectric element bonded on a silicon wafer, vertically moving the piezoelectric element, arranging a plurality of micro actuators whose contact pin ends, formed on the aluminum electrodes, rotate on a surface as an array, and displacing in the horizontal direction a moving member arranged on the micro actuator array.
Abstract in simplified Chinese:本发明揭示一种机械结构包含一组件,该组件可在具有第一形状的第一状态与具有不同的第二形状之第二状态之间,借由非机械方式移动,像是热或辐射。为此,该组件包含定向聚合液晶层,该层在受到这种外力时会展现出各向异性延伸。为了帮助制造,将组件放置在具有高黏性区域以及低黏性区域的基板上,以用于聚合液晶。为了制造这种结构,一定向聚合液晶层形成于一基板(201)上,该基板具有图案表面,该图案表面提供具有高黏性的黏性区域(204)于聚合液晶,以及具有低黏性的非黏性区域(203)于聚合液晶。聚合之后,例如施加热冲击,导致当剩余部分固定于黏性区域时,聚合液晶层在非黏性区域上分层。因此,该方法不需要耗时的底层蚀刻步骤(under–etching steps)下并不耗时。
Abstract:
A MEMS device, and method of fabrication thereof, comprising: a wall arranged as a closed loop(for example, comprising a plurality of interconnected lengths (11-18)); and a bridging portion (54) having two ends and an intermediate portion between these ends; the bridging portion (54) is connected at one end to a first portion of the wall and at the other end to a second portion of the wall non-contiguous to the first; whereby when the intermediate portion is displaced in a direction through a plane defined between the two ends, the portions of the wall connected to the bridging portion (54) are each displaced in a respective direction in the plane, and at least one further portion of the wall is displaced in a direction that is in the plane and that is different to the directions that the two portions connected to the bridging portion (54) are displaced in.
Abstract:
Provided is a polymer actuator element that can maintain satisfactory durability and has a great displacement amount or a great generating force, and excellent responsiveness. A polymer actuator element 1 includes an electrolyte layer 2 and electrode layers 3 and 4, in which the electrode layers 3 and 4 include an activated carbon nanofiber and a carbon nanohorn.
Abstract:
An object of this invention is to create an actuator in which the amount of deformation is maintained and no displacement in the reverse direction occurs, even when a constant voltage is continuously applied for a long period of time. As a means for achieving the above object, the invention provides a conductive thin film comprising a polymer gel containing at least one organic molecule selected from the group consisting of electron-donating organic molecules and electron-withdrawing organic molecules, a nano-carbon material, an ionic liquid, and a polymer.
Abstract:
The invention relates to a device for generating a second temperature variation ΔΤ 2 from a first use temperature variation ΔΤ 1 , comprising an elastocaloric material layer (30), the internal temperature of which is capable of varying from ΔΤ 2 in response to a given variation Δσ in a mechanical stress applied onto said elastocaloric material layer, the given variation Δσ being induced by the first temperature variation ΔΤ 1 , and a suspended element (24) in mechanical contact with the elastocaloric material layer such as to apply, onto said layer, a mechanical stress that varies in response to the use temperature variation ΔΤ 1 . Said suspended element (24) is set up such as to cause variation, from Δσ, in the mechanical stress applied onto the elastocaloric material layer in response to the temperature variation ΔΤ 1 such as to thereby generate the second temperature variation ΔΤ 2 .