Abstract: Improvements of the shielding of the reactor chamber in a radio frequency (RF) reactor are realized by providing dressed edges on the apertures found in the shield. These improvements to the reactor chamber lead to decreased defect density on processed wafers and eliminate the need for frequent cleaning of the reactor chamber.
Abstract: The present invention provides a thermal energy management architecture for a functioning system of electronic components and subsystems comprising a hierarchical scheme in which thermal management components are: (i) operatively engaged with individual portions of the system of electronic components and subsystems, in multiple defined levels and (ii) substantially only thermally driven, i.e., heat transfer devices that have no moving parts and require no external power for their operations. In one embodiment thermal management devices and technologies are divided into five separate levels within a functioning electronics system. In another embodiment, a sixth level is provided for bypassing one or more of the five levels.
Type:
Grant
Filed:
July 19, 2001
Date of Patent:
May 14, 2002
Assignee:
Thermal Corp.
Inventors:
L. Ronald Hoover, Jon Zuo, A. L. Phillips
Abstract: A press-control retaining device includes a casing, the casing having two engagement flanges disposed at two sides, a retainer member supported on a spring inside the casing and adapted for securing to an external object, the retainer member having a substantially -shaped bottom positioning base supported on the spring and two springy arms upwardly outwardly extended from the bottom positioning base and adapted for clamping on an external object, the bottom positioning base comprising two first hooked portions bilaterally disposed at a bottom side, two stop flanges bilaterally disposed at a top side, and two second hooked portions respectively spaced between the first hooked portions and the stop flanges, and a slide coupled to the retainer member between the stop flanges and the second hooked portions.
Abstract: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a first signal comprising a series of one or more pulses. The second circuit may be configured to generate a second signal in response to the first signal. The second signal may be configured to control the reset of an external device. In one example, the present invention may be implemented as a power on reset circuit.
Abstract: Embodiments of the present invention are directed to rotational actuators or rotators that rotate an object in a worm-like manner. One rotator includes piezoelectric members that are controlled to expand and contract in a predetermined sequence to rotate a ring. The rotator includes first and second coupling members which are adjustable in length to move between a coupled position being coupled with the ring and a decoupled position being decoupled from the ring. A top advancing member is connected between the top coupling end of the first coupling member and the top coupling end of the second coupling member. A bottom advancing member is connected between the bottom coupling end of the first coupling member and the bottom coupling end of the second coupling member. The top and bottom advancing members are adjustable in length to produce relative movements between the top coupling ends and between the bottom coupling ends, respectively.
Abstract: A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. The network accommodates real time voice transmission both through dedicated, scheduled bandwidth and through a packet-based routing within the confines and constraints of a data network. Conversion and call processing circuitry is also disclosed which enables access devices and personal computers to adapt voice information between analog voice stream and digital voice packet formats as proves necessary. Routing pathways include wireless spanning tree networks, wide area networks, telephone switching networks, internet, etc., in a manner virtually transparent to the user.
Abstract: A key device for a computer keyboard has a rigid printed circuit board, a flexible printed circuit board, and a key structure. The rigid printed circuit board has two adjacent but unconnected conductive ends electrically connected to two wires respectively. The flexible printed circuit board, fixed over the rigid printed circuit board, has a conductive segment installed above the two conductive ends, and an isolation layer installed around the conductive segment to form a gap between the conductive segment and the two conductive ends. The key structure is moveably fixed on the flexible printed circuit board in an up and down manner. When the key structure is pushed downward, the bottom of the key structure will touch the conductive segment of the flexible printed circuit board, and the conductive segment will touch the two conductive ends of the rigid printed circuit board to electrically connect the two conductive ends and the two wires.
Abstract: A laser processing fixture is formed to allow for facet processing of cleaved laser bars, either individually, or allowing for multiple bars to be processed simultaneously. The fixture holds the bars at a precisely-controlled distance with respect to a predefined reference plane, and holds the bars rigidly enough so as to minimize the possibility of vibration, but not so forcefully as to cause damage. The fixture comprises a fixed jaw and a movable jaw, with a pair of spaced-apart support members extending between the jaws. One or more laser bars may then be positioned between the jaws such that the front and rear facets will be exposed above and below the jaws. Therefore, each facet may be processed without unloading and re-loading the bars in the fixture. The support members, which may comprise a pair of wires, are spaced a sufficient distance so as to be disposed beyond the location of any active device region.
Type:
Grant
Filed:
May 1, 1998
Date of Patent:
May 14, 2002
Assignee:
Agere Systems Guardian Corp.
Inventors:
Utpal Kumar Chakrabarti, David Reese Peale
Abstract: A method of manufacturing semiconductors is provided which avoids metal deposition in voids formed in the dielectric between interconnects. In a preferred embodiment, an etch stop recess portion is provided over the dielectric which encloses the interconnects to prevent via openings from extending into the voids during the etching of the via openings. Accordingly, metal deposition of the voids during metal deposition of the vias is avoided. As a result, the semiconductors so formed has reduced capacitance between the interconnects and improved reliability since the voids are cleared of any metal deposition.
Abstract: A dual port memory comprising a memory array, a first address circuit, a second address circuit, a timing circuit, a first data circuit and a second data circuit. The memory array may be configured to (i) write information to a first port or (ii) read information from a second port in response to (i) one or more first timing signals and (ii) one or more second timing signals. The first address circuit may be configured to present one or more first control signals in response to one or more first address signals. The second address circuit may be configured to present one or more second control signals in response to one or more second address signals. The timing circuit may be configured to present the one or more first timing signals and the one or more second timing signals in response to the one or more first control signals and the one or more second control signals. The first data circuit may be configured to read or write information from the first port of the memory array.
Abstract: A moving-armature transducer assembly suitable for use as an alerter in a portable telephone. The assembly includes a transducer housed in an enclosure including first and second acoustical chambers. A first sound emitted from a front hole on a front side of the transducer is propagated through the first acoustical chamber and emitted from a first port of the assembly. A second sound emitted from a rear hole on a rear side of the transducer is phase-shifted by the second acoustical chamber acting in combination with a second port or ports on the assembly to have a phase coinciding with the phase of the first sound. The second sound then combines with the first sound, reinforcing the first sound and producing a combined sound having an increased level and bandwidth.
Type:
Grant
Filed:
July 24, 1998
Date of Patent:
May 14, 2002
Assignee:
Agere Systems Guardian Corp.
Inventors:
John Charles Baumhauer, Jr., Larry Allen Marcus
Abstract: The output of a dedicated control laser element in a laser array, which closely tracks the output of the array, is directed to a discriminator and feedback control means through a closed loop feedback-based system to provide both wavelength stability and power control of the array without reducing the optical power output from the array. The output of a dedicated control laser element in a laser array is also directed to a discriminator and synchronous detection means and is frequency modulated with a local oscillator to reduce the electronic drift and stabilize the wavelength of the dedicated laser source.
Type:
Grant
Filed:
April 12, 1999
Date of Patent:
May 14, 2002
Assignee:
Agere Systems Guardian Corp.
Inventors:
John W. Stayt, Jr., James K. Plourde, Scott L. Broutin
Abstract: A method of lighting a scaling tip including providing a light source electrically connected to a secondary coil, and providing a scaling tip having an arm extending into a primary coil and adapted to be ultrasonically vibrated by the primary coil.
Type:
Grant
Filed:
November 9, 2000
Date of Patent:
May 14, 2002
Assignee:
Dentsply Research & Development Corp.
Inventors:
Robert F. Hecht, Horacio R. Cabana, Peter H Werner
Abstract: A lithography and etching process, which is applicable on a substrate, is described. A material layer to be patterned is formed on the substrate, then a silicon oxynitride layer of more than 800 angstroms in thickness is formed over the material layer. Subsequently, a patterned photoresist layer is formed over the silicon oxynitride layer, followed by removing the exposed silicon oxynitride layer by using the photoresist layer as a mask, and removing the exposed material layer by using the patterned silicon oxynitride layer as a mask to form a patterned material layer.
Abstract: Compounds and pharmaceutical compositions containing such compounds and possessing anti-tussive activity, and a method of administering the same to warm-blooded animals, including humans.
Type:
Grant
Filed:
June 9, 1999
Date of Patent:
May 14, 2002
Assignee:
Cardiome Pharma Corp.
Inventors:
Gregory N. Beatch, Lewis S. L. Choi, Clive P. Page, Bertrand M. C. Plouvier, Yuzhong Liu
Abstract: The invention provides a device comprising an improved n-channel semiconducting film, the film formed from a fused-ring tetracarboxylic diimide compound which exhibits a field effect electron mobility greater than 0.001 cm2/Vs, advantageously greater than 0.03 cm2/Vs, in film form. Contemplated compounds include naphthalene 1,4,5,8, tetracarboxylic acid diimides, naphthalene 2,3,6,7 tetracarboxylic acid diimides, anthracene 2,3,6,7-tetracarboxylic acid diimides, and heterocyclic variants thereof. The n-channel compounds are capable of being significantly soluble in common organic solvents, allowing for solution deposition of active semiconductor films, and are also capable of possessing significant volatility, such that vapor phase deposition, where desired, is relatively facile. It is also possible for the compounds to display the desirably high n-channel mobilities and on/off ratios even when operated in air.
Type:
Grant
Filed:
January 3, 2000
Date of Patent:
May 14, 2002
Assignee:
Agere Systems Guardian Corp.
Inventors:
Howard Edan Katz, Wenjie Li, Andrew J Lovinger
Abstract: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a first control signal and a second control signal in response to (i) a first input signal, (ii) a second input signal and (iii) a voltage control signal. The second circuit configured to generate (i) an output signal in response to the first and the second control signals and (ii) the voltage control signal in response to a pad voltage.
Type:
Grant
Filed:
August 13, 1999
Date of Patent:
May 14, 2002
Assignee:
Cypress Semiconductor Corp.
Inventors:
Jeffery Scott Hunt, Muthukumar Nagarajan