Abstract:
A two-terminal barrier controlled TVS diode has a depletion region barrier blocking majority carrier flow through the channel region at the vicinity of the cathode region at bias levels below the predetermined clamping voltage applied between the anode electrode and the cathode electrode, and may be arranged such that the anode region provides conductivity modulation by injecting minority carriers into the channel region during conduction of the semiconductor structure. In presently preferred form the majority carriers are electrons and the minority carriers are holes. Fabrication methods are described.
Abstract:
The present invention discloses a method for realize the AAL2 protocol layer, first, setting up a transmit buffering area for the storage of the transmitted data packet, and a receive buffering area for the deposition of the received data packet, accomplishing the AAL2 data exchange utilizing the above-mentioned buffer area arrow at the exchange node of the connection, and accomplishing the processing of adaptation layer protocol and the data transmission between the adaptation layer and application layer in end node; there are differences in Service Specific Segmentation and Reassembly sublayer SSSAR protocol layer for the voice package and the packet data package, which complete the exchanges between the AAL2 layers, and the method has improved the realization scheme of layer of AAL2 protocol further.
Abstract:
A bistable structure provided by the invention is characterized as including a deflection element that has mechanically constrained end points and a compliant span between the end points that is substantially free to deflect between two stable positions when a force is applied at a point along the span. The deflection element span is provided, as-fabricated, curved in one of the two stable positions and in a mechanically unstressed condition along the length of the span. The as-fabricated curve of the deflection element span includes a curve maxima at a point along the span length that is at least about ¼ of the span length from the end points of the span. The deflection element span is constrained to substantially prohibit development of a second bending mode that is characteristic for the span as the element deflects between the two stable positions.
Abstract:
Methods and structures for fabricating MEMS devices on compliant layers are provided. In particular, disclosed are methods and structures that can include the use of a sacrificial layer composed of a material having material properties relative to one or more other layers. These methods and structures can reduce final device shape sensitivity to process parameters, deposition temperature differences, specific material, time, and/or geometry. Further, such methods and structures can improve the final as-built shape of released devices, reduce variability in the as-built shape, eliminate decoupling of the deposited layers from the substrate, and reduce variability across a product array, die, or wafer.