摘要:
A parasitic vertical PNP bipolar transistor in BiCMOS process comprises a collector, a base and an emitter. The collector is formed by active region with p-type ion implanting layer (P type well in NMOS). It connects a P-type conductive region, which formed in the bottom region of shallow trench isolation (STI). The collector terminal connection is through the P-type buried layer and the adjacent active region. The base is formed by N type ion implanting layer above the collector which shares a N-type lightly doped drain (NLDD) implanting of NMOS. Its connection is through the N-type poly on the base region. The emitter is formed by the P-type epitaxy layer on the base region with heavy p-type doped, and connected by the extrinsic base region of NPN bipolar transistor device. This invention also includes the fabrication method of this parasitic vertical PNP bipolar transistor in BiCMOS process. And this PNP bipolar transistor can be used as the I/O (input/output) device in high speed, high current and power gain BiCMOS circuits. It also provides a device option with low cost.
摘要:
A device and method for dropping an air interface is disclosed. In one embodiment, the method comprises communicating over a first air interface and a second air interface, determining an operational parameter based at least in part on a characteristic of the first air interface, and dropping the second air interface based at least in part on the operational parameter. A device and method for adding an air interface is also disclosed. In one embodiment, the system comprises a processor configured to drop one of a plurality of concurrently established air interfaces and to subsequently determine that at least one predetermined criteria is met before attempting to add the air interface.
摘要:
In a method for multicast and broadcast synchronization a data payload frame is generated from a data payload. A frame number is assigned to the data payload frame, wherein the frame number includes a generating time of the data payload frame. The data payload frame is distributed to a plurality of base stations in a wireless access system. The offset spans a travel time of a data payload frame from the controller to the plurality of base stations as well as a scheduling time and a multiplexing time.
摘要:
This invention released a method for gas storage, characterized that gas is stored in the form of nanometer scale bubbles or gas layers on the solid-liquid surfaces. Said gas is hydrogen, the surface of the solid is planar solid surface, irregular solid surface, or porous material surface, especially highly oriented pyrolytic graphite (HOPG) surface, and the liquid is water, inorganic acid, inorganic salt, inorganic alkali, organic solution or colloid solution. The gas to be stored is produced by electrochemical method, inorganic reaction, organic reaction, biologic reaction or physical method.
摘要:
A stepwise contraction and adsorption nanolithography (SCAN) patterning process can shrink complex microstructures (produced by current microfabrication technology) into the nanometer region. The basis of SCAN is to transfer a pre-engineered microstructure onto a extended elastomer. This extended elastomer is then allowed to relax, reducing the microstructure accordingly. The new miniaturized structure is then used as a stamp to transfer the structure onto another stretched elastomer. Through iterations of this procedure, patterns of materials with pre-designed geometry are miniaturized to the desired dimensions, including sub-100 ran. The simplicity and high throughput capability of SCAN make the platform a competitive alternative to other micro- and nanolithography techniques for potential applications in multiplexed sensors, non-binary optical displays, biochips, nanoelectronics devices, and microfluidic devices.
摘要:
Methyl 2,4,9-trithiaadamantane-7-carboxylate and a method for its manufacture is disclosed. The method reacts oxidized methyl triallyl acetate with a Lewis acid and a sulphuring agent.
摘要:
7-ethynyl-2,4,9-trithiaadamantane and related methods are presented. Manufacturing 7-ethynyl-2,4,9-trithiaadamantane includes the steps of: (1) reducing alkyl 2,4,9-trithiaadamantane-7-carboxylate to produce 7-hydroxymethyl-2,4,9-trithiaadamantane; (2) oxidizing 7-hydroxymethyl-2,4,9-trithiaadamantane to produces 7M carbonyl-2,4,9-trithiaadamantane; and (3) reacting 7-carbonyl-2,4,9-trithiaadamantane with Ohira-Bestmann reagent to produces 7-ethynyl-2,4,9-trithiaadamantane. Molecular wires having 2,4,9-trithiaadamantane surface anchors are also disclosed.
摘要:
The present invention generally relates to a method for rapidly counting micron and/or submicron particles by passing such particles through any of a plurality of orifices simultaneously with an ion current and measuring the signal generated thereby. The present invention also generally relates to a device for practicing the method of the present invention. Some embodiments can include methods and/or devices for distinguishing between and counting particles in mixtures. Still other embodiments can include methods and/or devices for identifying and/or counting bioparticles and/or bioactive particles such as pollen.
摘要:
A method for detecting the specificity of activated lymphocytes is provided. The present method can be used to detect the specificity of activated lymphocytes in recipients or patients after organ transplantation or being infected by pathogenic microorganism or vaccination. The establishment of the present invention can not only timely diagnose rejection in organ transplantation, but also provide guidance for rational medicament administration clinically. Furthermore, the present invention provides an accurate and quick method to detect infectious diseases. It will be significant to achieve the goals of early detection, early quarantine, early treatment, thereby reducing infection rate.