Abstract:
A microelectromechanical (MEMS) positioning apparatus is provided that can precisely microposition an object in each of the X, Y and Z directions. The MEMS positioning apparatus includes a reference surface, a support disposed in a fixed position to the reference surface, and a stage defining a XY plane that is suspended adjacent to the support and over at least a portion of the reference surface. The MEMS positioning apparatus also includes at least one and, more typically, several actuators for precisely positioning the stage and, in turn, objects carried by the stage. For example, the MEMS positioning apparatus can include first and second MEMS actuators for moving the stage in the XY plane upon actuation. In addition, the MEMS positioning apparatus can include a Z actuator, such as a thermal bimorph structure, for moving the stage in the Z direction.
Abstract:
An array (100) of M x N thin film actuated mirrors (101) includes an active matrix (120) having a substrate with an array of M x N connecting terminals (124) and an array of M x N transistors, and an array of M x N actuating structures (111), wherein each of the actuating structures (111) being a bimorph structure, includes a second thin film electrode (165), a lower electrodisplacive member (185), an intermediate thin film electrode (135), an upper electrodisplacive member (175) and a first thin film electrode (155). Furthermore, there is disclosed a method for the manufacture thereof, the method comprising the steps of: providing an active matrix; forming a thin film sacrificial layer on top of the active matrix; removing selectively the thin film sacrificial layer; forming a second thin film electrode layer thereon; removing selectively the second thin film electrode layer; depositing a lower electrodisplacive layer; forming an intermediate electrode layer; depositing an upper electrodisplacive layer; forming a first thin film electrode layer; thereby forming a multiple layered structure; patterning the multiple layered structure into an array of M x N semifinished actuating structures; and removing the thin film sacrificial layer.
Abstract:
MEMS 디바이스는: 제1 고정 말단을 가지며, 제1 하부 전극, 제1 압전막, 및 제1 상부 전극이 적층된 구조를 포함하며, 제1 하부 전극 및 제1 상부 전극에 전압을 인가함으로써 동작될 수 있는 제1 액츄에이터; 제2 고정 말단을 가지며, 제1 액츄에이터와 평행하게 배치되고, 제2 하부 전극, 제2 압전막, 및 제2 상부 전극이 적층된 구조를 포함하며, 제2 하부 전극 및 제2 상부 전극에 전압을 인가함으로써 동작될 수 있는 제2 액츄에이터; 및 제1 액츄에이터에 접속된 제1 액션부 및 제2 액츄에이터에 접속된 제2 액션부를 포함하는 전기 회로 소자를 포함한다. 압전 구동 MEMS 디바이스, 액츄에이터, 액션부, 가변 용량형 커패시터, 압전막
Abstract:
The invention relates to MEMS-based display devices. In particular, the display devices may include actuators having two mechanically compliant electrodes. In addition, bi-stable shutter assemblies and means for supporting shutters in shutter assemblies are disclosed inclusion in the display devices.
Abstract:
PURPOSE: A micromechanical device is provided to reduce the assembly-related strains, stress and associated temperature-induced variations of the overall device, thus simplifying the evaluation electronics of the device. CONSTITUTION: A pedestal structure and its fabrication method provide a stress release assembly of micromechanical sensors, in particular acceleration sensors, angular rate sensors, inclination sensors or angular acceleration sensors. At least one silicon seismic mass(32) is used as sensing element. The at least one silicon seismic mass(32) is joined to the silicon frame via at least one elongate assembly pedestal, the surface of which is bonded to a covering wafer, either glass or silicon. Signals may be transmitted via buried conductors in the pedestal. The bonding area is reduced by shallow transversal recesses in the surface of the pedestal.
Abstract:
The invention relates to MEMS-based display devices. In particular, the display devices may include actuators having two mechanically compliant electrodes. In addition, bi-stable shutter assemblies and means for supporting shutters in shutter assemblies are disclosed inclusion in the display devices.
Abstract:
본 발명은 MEMS용 폴리머 선형 엑츄에이터 및 이를 이용한 뇌 신경신호 측정장치의 마이크로 매니퓰레이터에 관한 것이다. 본 발명에 따른 폴리머 선형 엑츄에이터는 소정간격 이격되어 위치하는 제1 및 제2 몸체부와, 상기 제1 및 제2 몸체부를 서로 연결하는 한 쌍 이상의 V자형의 구동 유닛을 포함하고, 상기 한 쌍을 형성하는 각 구동 유닛은 서로 대향하도록 배치되어, 각 구동 유닛의 회전 운동을 선형운동으로 변화시켜 상기 제1 및 제2 몸체부가 선형 운동하는 것을 특징으로 한다. MEMS, 폴리머, 선형 엑츄에이터, 엑츄에이터