摘要:
A semiconductor device has a first region (10) and a second region (20), gate trenches (50) being formed in paid first and second regions including insulated gates to control conduction between source regions (42) and a common drain region (40) through a body region separated into first (34) and second (36) body regions. Isolation between the first and second regions is provided in a simple way by providing a gap between the first and second body regions (34,36) formed by eg. at least one trench (52) or a part of the drain region.
摘要:
The present invention provides for a MOSFET device (10) having a body diode structure (22) and provided with biasing means arranged to provide a bias voltage selectively applied to the gate of the MOSFET (12) during reverse recovery of the body diode structure (22) so as to reduce reverse recovery transient signals associated with the body diode structure (22), the biasing means comprising a diode device (16) located in the gate path of the device (10).
摘要:
Techniques for dynamically grouping items include determining context associated with each group comprising one or more items; and determining current context at a device. In response to determining that prompted prompt is presented for input to indicate an item, a suggested group is determined based on the current context at the device and relevance of a context associated with the suggested group. The suggested group is presented. In some embodiments, prompted prompt is presented to name a suggested group; and, in response, data indicating the suggested group is stored as a permanent group associated with the name. In some embodiments, relevance is determined for each item of a group. A group avatar is generated based on M images associated with the items that have the most relevance.
摘要:
A transistor (1) has a FET (2) and a temperature sensing diode (4) integrated within it. Gate drive circuit (12) is arranged to switch off FET (2) and in this case biasing circuit (14) drives a constant current through the diode (4). The voltage across the diode (4) is measured by voltage sensor (15) which provides a measure of the temperature of the FET.
摘要:
Fluorescent or phosphorescent nanoparticles, fluorescent or phosphorescent magnetic nanoparticles, combustion-based methods for their synthesis, and methods to functionalize them are described. The methods provided by the invention are simplified, efficient and cost effective as compared to prior art methods. The resulting fluorescent or phosphorescent nanoparticles have reduced tendency toward aggregation, and diminished need for postmanufacturing processing steps. The particles may be manufactured with combinations of lanthanides so as to absorb and emit light over a variety of wavelengths.
摘要:
A system of heating a sample on a microchip includes the steps of providing a microchannel flow channel in the microchip; positioning the sample within the microchannel flow channel, providing a laser that directs a laser beam onto the sample for heating the sample; providing the microchannel flow channel with a wall section that receives the laser beam and enables the laser beam to pass through wall section of the microchannel flow channel without being appreciably heated by the laser beam; and providing a carrier fluid in the microchannel flow channel that moves the sample in the microchannel flow channel wherein the carrier fluid is not appreciably heated by the laser beam.
摘要:
A system of heating a sample on a microchip includes the steps of providing a microchannel flow channel in the microchip; positioning the sample within the microchannel flow channel, providing a laser that directs a laser beam onto the sample for heating the sample; providing the microchannel flow channel with a wall section that receives the laser beam and enables the laser beam to pass through wall section of the microchannel flow channel without being appreciably heated by the laser beam; and providing a carrier fluid in the microchannel flow channel that moves the sample in the microchannel flow channel wherein the carrier fluid is not appreciably heated by the laser beam.
摘要:
A method of gathering information relevant to the interests of a user includes receiving activity history associated with the user from a network data source, where the activity history includes a description of a user action initiated by the user, generating a first metadata item based upon the activity history; and storing the first metadata item as user profile information associated with the user in a user profile database. Generating the first metadata item may include extracting text from the activity history and generating the first metadata item based upon the text. The activity history may include a description of a user action. The method may further include providing a server plugin for performing a second method in response to access of web content on a server by the user, the second method comprising retrieving a content object from the server, determining if the first metadata item is relevant to the content object, adding a web link to the web content as a reference to the content object in response to the content object being relevant to the first metadata item; and providing the web content to the user.
摘要:
Techniques for quick selection from an ordered list include dividing all items in the ordered list into current groups. Each current group includes a different range of the items. A corresponding plurality of icons for the plurality of current groups is presented substantively simultaneously on a display screen. One corresponding icon for each current group indicates a range of items included in the current group. In response to receiving input that indicates a particular icon corresponding to a particular group of the plurality of current groups, all items included in the particular group are divided into a plurality of next current groups. Each next current group includes a different range of the items included in the particular group. The next current group replaces the previous current group; thus, a corresponding plurality of icons for the plurality of next current groups is presented substantively simultaneously on the display screen.
摘要:
A method of gathering information relevant to the interests of a user includes receiving activity history associated with the user from a network data source, where the activity history includes a description of a user action initiated by the user, generating a first metadata item based upon the activity history; and storing the first metadata item as user profile information associated with the user in a user profile database. Generating the first metadata item may include extracting text from the activity history and generating the first metadata item based upon the text. The activity history may include a description of a user action. The method may further include providing a server plugin for performing a second method in response to access of web content on a server by the user, the second method comprising retrieving a content object from the server, determining if the first metadata item is relevant to the content object, adding a web link to the web content as a reference to the content object in response to the content object being relevant to the first metadata item; and providing the web content to the user.