| Patent Number |
Title Of Patent |
Date Issued |
| RE37569 |
High-speed modem synchronized to a remote codec |
March 5, 2002 |
| A modem that operates reliably at a symbol rate that corresponds to twice its bandwidth even when it is coupled to a receiving A/D converter that operates under control of a clock is realized by synchronizing the modem's operation to the A/D's clock. The superior operation of this modem |
| 7102732 |
Method of manufacturing a device by employing a lithographic apparatus including a sliding elect |
September 5, 2006 |
| Various options for improving throughput in an e-beam lithography apparatus are described. A slider lens moves in synchronism with the scanning motion of the electron beam. |
| 6675450 |
Method of manufacturing and mounting electronic devices to limit the effects of parasitics |
January 13, 2004 |
| A method of producing and mounting electronic devices to negate the effects of parasitics on device performance. In one aspect, the substrate surface of the device is coated with a thin, etch-resistant film during fabrication that acts as a barrier to allow removal of substrate material |
| 6674291 |
Method and apparatus for determining and/or improving high power reliability in thin film resona |
January 6, 2004 |
| The effects of electromigration have been shown to lead to damage of metal electrodes of electronic devices such as thin film resonator (TFR) devices in only a few hours, for a test input power that is within the operational range of these devices. It has been determined that this failur |
| 6639710 |
Method and apparatus for the correction of optical signal wave front distortion using adaptive o |
October 28, 2003 |
| An adaptive optics system is disclosed whereby at least one mirror in the system is manipulated using electrostatic force to selectively attract or repel a portion of the mirror to or from a particular electrode, respectively. This attraction or repulsion is accomplished by mechanically |
| 6625278 |
Impedance matching with sigma delta filter |
September 23, 2003 |
| An AC impedance matching architecture which provides programmable AC impedance matching in a given range using a digital filter to filter a signal fed back from the impedance matched line to generate an AC impedance emulation control signal. The AC impedance emulation control signal |
| 6599837 |
Chemical mechanical polishing composition and method of polishing metal layers using same |
July 29, 2003 |
| The present invention provides a chemical mechanical planarization (CMP) polishing composition that polishes metal layers at a good removal rate and that provides good planarization of metal layers in a process that can be readily controlled. The CMP polishing composition of the present |
| 6569690 |
Monitoring system for determining progress in a fabrication activity |
May 27, 2003 |
| Method for fabricating a structure. According to an exemplary embodiment, a structure is made by forming a layer of removable material with a first surface spaced a part from a second surface. The first surface is formed along a first region from which the material is removable. The firs |
| 6552844 |
Passively output flattened optical amplifier |
April 22, 2003 |
| An optical amplifier and communications system for amplifying an input signal and providing an output signal includes a nonlinear light absorber for passively controlling the level of the output signal. The nonlinear light absorber provides an approximately constant output signal level |
| 6550280 |
Process of sintering a hanging silica tube so as to exhibit a low bow |
April 22, 2003 |
| The invention involves fabricating a ceramic tube, e.g., a silica overcladding tube, with very little bow, e.g., about 0.3 mm per meter or less. In particular, the invention involves securing the tube by a handle that both allows the tube to hang plumb during treatment, and also is c |
| 6549698 |
Large N.times.N waveguide grating router |
April 15, 2003 |
| The limitation of N in an N.times.N Wavelength Grating Router (WGR) is determined to be because of the intrinsic diffraction characteristics of the grating that occurs when N approaches the diffraction order m at which the grating operates. The N in a N.times.N WGR device is maximized fo |
| 6542539 |
Multiported register file for coefficient use in filters |
April 1, 2003 |
| Multiported register files for use in storing coefficients in adaptive FIR filters. incorporate computational ability, e.g., the ability to perform computation on coefficient values or derivatives thereof, or to control the operations performed thereon. For example, a multiported registe |
| 6541394 |
Method of making a graded grown, high quality oxide layer for a semiconductor device |
April 1, 2003 |
| A method for making an oxide layer on a silicon substrate produces an oxide layer including graded portions with greatly reduced stress. The method includes growing a first oxide portion over a substrate by upwardly ramping the substrate to a first temperature lower than a SiO.sub.2 |
| 6522445 |
Feedback sensor for M.E.M.S. mirrors |
February 18, 2003 |
| A support for a mirror which reflects a laser ray to a detector. The mirror is gimballed about two perpendicular axes. The mirror is supported solely by strain gauges. Rotation of the mirror about an axis causes one of the strain gauges to produce a signal indicative of the rotation. The |
| 6519073 |
Micromechanical modulator and methods for fabricating the same |
February 11, 2003 |
| A method and apparatus for modulating an optical signal using a micromechanical modulator are disclosed. The modulator comprises a membrane, which includes a first and a second layer, a substrate layer, and a substrate, spaced from the membrane to form an air gap. The layers of the m |
| 6518906 |
Use of current folding to improve the performance of a current -steered DAC operating at low sup |
February 11, 2003 |
| The performance of a single-bit cell in a DAC is improved by decoupling the voltage swing across the load resistors from the output of the current steering device. This can be achieved by providing for a single-bit cell having a first load resistor R1 and a second load resistor R2, a cur |
| 6507421 |
Optical monitoring for OXC fabric |
January 14, 2003 |
| An optical crossconnect (OXC) fabric including an array of tiltable mirrors, a reflector and a plurality of optical fibers controls the position of the mirrors to optimize the transfer of a signal between an input optical fiber and an output optical fiber by monitoring the optical si |
| 6506673 |
Method of forming a reverse gate structure with a spin on glass process |
January 14, 2003 |
| The present invention provides a method that includes defining a dummy gate structure comprising a spin on glass on a semiconductor substrate, forming a dielectric layer over the dummy gate structure, removing the dummy gate structure to form a gate opening within the dielectric layer, a |
| 6500729 |
Method for reducing dishing related issues during the formation of shallow trench isolation stru |
December 31, 2002 |
| A method for forming shallow trench isolation structures produces a shallow trench isolation structure having a substantially planar upper surface. The shallow trench isolation structure is formed from an originally formed shallow trench isolation structure which includes a deposited die |
| 6499087 |
Synchronous memory sharing based on cycle stealing |
December 24, 2002 |
| A multiple agent system providing each of a plurality of agents, i.e., processors, access to a shared synchronous memory. A super agent is preferably that agent from among a plurality of agents which accesses a shared synchronous memory most frequently. The super agent has direct acc |
| 6498931 |
CID message retrieval methods and devices |
December 24, 2002 |
| Message retrieval methods and devices allow for the remote retrieval of caller identity delivery ("CID") information or messages stored in telephones, telephone answering devices ("TAD") and the like through the use of dual-tone, multi-frequency ("DTMF") signals. |
| 6498080 |
Transistor fabrication method |
December 24, 2002 |
| A method of forming low stack height transistors having controllable linewidth in an integrated circuit without channeling is disclosed. A disposable hardmask of doped glass is utilized to define the gate and subsequently protect the gate (and the underlying substrate) during ion imp |
| 6496124 |
System and method for compensating for codec DC offset through a DC blocking channel and modem i |
December 17, 2002 |
| A system for, and method of, compensating for codec DC offset and a modem incorporating the system or the method. In one embodiment, the system includes: (1) a DC offset compensator that develops and transmits a DC offset indicator signal corresponding to a DC offset present along a |
| 6493848 |
Rate equation method and apparatus for simulation of current in a MOS device |
December 10, 2002 |
| An improved method for modeling electrical behavior in a MOSFET semiconductor device is disclosed wherein a rate equation qualitatively predicts electrical behavior, including electron migration and current, across a boundary imposed by the difference in doping the source and the cha |
| 6493132 |
Monolithic optically pumped high power semiconductor lasers and amplifiers |
December 10, 2002 |
| The present invention, a monolithic, high power, single mode electro-optic device is disclosed. The electro-optic device generally includes an electrically pumped device with a pn junction and an optically pumped device evanescently coupled to the electrically pumped device. In opera |
| 6492712 |
High quality oxide for use in integrated circuits |
December 10, 2002 |
| An oxide for use in integrated circuits is substantially stress-free both in the bulk and at the interface between the substrate and the oxide. The interface is planar and has a low interface trap density (N.sub.it). The oxide has a low defect density and may have a thickness of less tha |
| 6487341 |
Multi-material structure with reduced polarization dependent loss and method therefor |
November 26, 2002 |
| The invention includes a multi-material structure comprising at least two components through which light is propagated. At least two structure components are of different materials and are joined to one another at an end surface of each either directly or indirectly. The end surfaces are |
| 6486075 |
Anisotropic wet etching method |
November 26, 2002 |
| The present applicant has discovered that the application of an etch-rate reducing liquid that selectively wets the mask can permit anisotropic wet etching. In a preferred embodiment, the application of a hydrocarbon liquid film to a masked silica surface permits wet etching of straight |
| 6483619 |
Optical-interference microphone |
November 19, 2002 |
| An optical-interference microphone having a high sensitivity and bandwidth, and that is suitable to be manufactured by micromachining techniques. The microphone includes a back member, a diaphragm and an air gap formed between the back member and diaphragm. Further, the diaphragm include |
| 6483144 |
Semiconductor device having self-aligned contact and landing pad structure and method of forming |
November 19, 2002 |
| A semiconductor integrated circuit device and method of forming same is disclosed and includes a silicon substrate having a field oxide region and spaced active region. First and second self-aligned contact window openings are associated with a respective field oxide region and active |
| 6482671 |
Integrated optoelectronic device with an avalanche photodetector and method of making the same u |
November 19, 2002 |
| An integrated optoelectronic circuit chip for optical data communication systems includes a silicon substrate, at least one MOS field effect transistor (MOSFET) formed on a portion of the silicon substrate, and an avalanche photodetector operatively responsive to an incident optical |
| 6477194 |
Low temperature distributed feedback laser with loss grating and method |
November 5, 2002 |
| A low threshold distributed feedback (DFB) laser is constructed for improved performance at subzero temperatures. A loss grating is employed to enhance the probability that lasing occurs near the short wavelength side of the stopband and to counteract the effect of negative gain tilt |
| 6477177 |
Multiple device access to serial data stream |
November 5, 2002 |
| One aspect of the present invention provides a packer-unpacker (PUP) for a digital serial interface which allows a plurality of processors to access time slot registers of a serial data stream relating to the digital serial interface. A configuration register is maintained either by one |
| 6476642 |
Differential current driver circuit |
November 5, 2002 |
| An improved differential current driver circuit of the invention provides techniques for programming a bus termination voltage and an output non-zero absolute current value of the driver circuit. This information is used by the driver circuit to closely match the internal elements of the |
| 6473014 |
Sampling device having an intrinsic filter |
October 29, 2002 |
| A sampling device for sampling an input signal having intrinsic filter properties. The sampling device samples a continuous analog input signal according to a sampling signal. The sampling device includes a first sampling switch for sampling the input signal, in response to a sampling |
| 6472307 |
Methods for improved encapsulation of thick metal features in integrated circuit fabrication |
October 29, 2002 |
| The present invention provides a method of manufacturing an integrated circuit having a capping layer over a thick metal feature. In one embodiment, the method comprises forming first and second oxide layers over the thick metal feature, forming a composite oxide layer including an o |
| 6471925 |
Method for treating an effluent gas during semiconductor processing |
October 29, 2002 |
| A method for treating an effluent gas from a semiconductor processing system includes the steps of exhausting the effluent gas from a processing chamber, and catalytically treating the effluent gas with the at least one mixed metal oxide. The effluent gas includes unconsumed process gass |
| 6470130 |
Waveguide structures |
October 22, 2002 |
| A waveguide for optical transmission having a mechanically active core material comprised of a silicon-rich silicon nitride in a mechanically active region. In the mechanically active region, the silicon-rich silicon nitride core can have no cladding (ie. an air cladding) or a cladding |
| 6470000 |
Shared correlator system and method for direct-sequence CDMA demodulation |
October 22, 2002 |
| A shared correlator system and method for a code division, multiple access (CDMA) receiver employs pipeline processing and information tags for sharing vector generation and correlation operations between processing units. A signal input to the CDMA receiver is provided as, for example, |
| 6469843 |
Optical bench assembly and fabrication method |
October 22, 2002 |
| An optical lens for use with an optical bench. The lens has a diffractive element which provides an angular offset to radiation incident on the lens. The offset substantially compensates for an undesirable focal point location caused by a variance between an integral component position o |
| 6469587 |
Differential LC voltage-controlled oscillator |
October 22, 2002 |
| A differential voltage-controlled oscillator (VCO) employs a pair of accumulation-mode varactors driven with a differential control voltage to generate a differential oscillating waveform. The differential control voltage is formed from a pair of level-shifted input differential control |
| 6469390 |
Device comprising thermally stable, low dielectric constant material |
October 22, 2002 |
| It has been discovered that for semiconductor devices such as MOSFETs, there is significant capacitive coupling in the front-end structure, i.e., the structure from and including the device substrate up to the first metal interconnect level. The invention therefore provides a device |
| 6469357 |
Article comprising an oxide layer on a GaAs or GaN-based semiconductor body |
October 22, 2002 |
| We have found that a single crystal, single domain oxide layer of thickness less than 5 nm can be grown on a (100) oriented GaAs-based semiconductor substrate. Similar epitaxial oxide can be grown on GaN and GaN-based semiconductors. The oxide typically is a rare earth oxide of the Mn.su |
| 6468899 |
Contactless local interconnect process utilizing self-aligned silicide |
October 22, 2002 |
| A contactless, self-aligned local interconnect structure provides a continuous silicide film electrically coupling an upper silicon structure to a lower silicon structure. The upper silicon structure overlaps the lower silicon structure and is insulated from the lower silicon structure |
| 6467969 |
Article comprising a multimode optical fiber coupler |
October 22, 2002 |
| The present invention is an optical coupler comprising a plurality of optical fibers that have unclad (core-exposed) ends and tapered cladding regions extending to cladded ends. The core-exposed ends are arranged in a bundle, and the cladded ends can be arranged as needed. The optical |
| 6467082 |
Methods and apparatus for simulating external linkage points and control transfers in source tra |
October 15, 2002 |
| A method for simulating a first processor (e.g., target processor) on a second processor (e.g., host processor) includes translating assembly language instructions associated with the first processor into `C` language code. The `C` language code is then compiled by a compiler program |
| 6467035 |
System and method for performing table look-ups using a multiple data fetch architecture |
October 15, 2002 |
| A novel table look-up/indirect addressing system and method uses a dual fetch Harvard architecture to accomplish one full table look-up access per instruction cycle. The offset access fetch, the indirect data fetch and the table offset and base address addition are all performed during a |
| 6466787 |
Cordless devices and methods for ordering narrow band communication channels using algorithms no |
October 15, 2002 |
| Methods and devices are provided for overcoming interference which occurs when one or more cordless devices seek to communicate over the same range of narrow band channels. Any one of a number of algorithms not based on channel clarity may be utilized to order groups of available channel |
| 6466650 |
Telecom service identification transponder apparatus and technique |
October 15, 2002 |
| Telephone line service type identification is provided to a telephone technician in the field by the placement of one or more tuned circuit(s) across the telephone line. In one embodiment, an inexpensive tuned circuit such as a ceramic resonator forms a telecom service resonator ID devic |
| 6466341 |
Add/drop filter for a multi-wavelength lightwave system |
October 15, 2002 |
| A method and apparatus are disclosed for providing optical channel adding/dropping capability within a WDM filter-bypass device. The device comprises an optical filter, an optical switch, and means for receiving a control signal to configure the optical switch. When configured in a f |
