Patents Represented by Attorney Daniel D. Hill
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Patent number: 8042002Abstract: For some data processing systems, it is important to be able to handle overlapping debug events generated by a shared set of debug resources which are trying to cause both exception processing and debug mode entry. However, exception processing and debug mode entry generally have conflicting requirements. In one embodiment, exception priority processing is initially given to the software debug event. Normal state saving is performed and the first instruction of the debug exception handler is fetched, but not executed. Priority is then switched from the software debug event to the hardware debug event and a debug halted state is entered. Once processing of the hardware debug event has been completed, priority is returned to the software debug event and the debug exception handler is executed.Type: GrantFiled: January 18, 2008Date of Patent: October 18, 2011Assignee: Freescale Semiconductor, Inc.Inventors: William C. Moyer, Jimmy Gumulja, Jeffrey W. Scott
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Patent number: 8041132Abstract: Sequential video data frames are encoded using cores including a first core and a second core. A first beginning frame is divided into slices. The first core is assigned to process a first slice. The second core is assigned to process a second slice. The first beginning frame is processed using the cores which results in a first ending frame in which the first slice was partitioned into a third slice and a fourth slice. The third slice was processed by the first core. The fourth slice and the second slice were processed by the second core. A second beginning frame, which immediately follows the first ending frame, is divided into a second plurality of slices. The first core is assigned to the third slice. The second core is assigned to a fifth slice which has a size equal to a sum of the second and fourth slices.Type: GrantFiled: June 27, 2008Date of Patent: October 18, 2011Assignee: Freescale Semiconductor, Inc.Inventor: Yong Yan
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Patent number: 8031549Abstract: An integrated circuit comprises a global power supply conductor, a plurality of circuit blocks, a plurality of voltage converters, and control logic. The global power supply conductor is configured to distribute a supply voltage. The circuit blocks are selectively coupled to the global power supply conductor. The plurality of voltage converters are coupled to the global power supply conductor. An output voltage of individual voltage converters of the plurality of voltage converters are selectively coupled to one or more of the plurality of circuit blocks. The control logic is configured to control the selective coupling of at least one of the supply voltage and the output voltage of individual voltage converters of the plurality of voltage converters to corresponding ones of the plurality of circuit blocks. Also, the control logic controls a magnitude of the output voltage of individual voltage converters of the plurality of voltage converters.Type: GrantFiled: September 19, 2008Date of Patent: October 4, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Prashant U. Kenkare, Troy L. Cooper
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Patent number: 8018259Abstract: A method for a phase-locked loop (PLL) in an integrated circuit, wherein the PLL comprises a voltage-controlled oscillator (VCO). The method includes, in a training mode: (1) setting a control voltage of the VCO at a first voltage level; (2) increasing the control voltage of the VCO from the first voltage level to a second voltage level, until a loss of the feedback signal is detected; and (3) storing an indicator value corresponding to the second voltage level of the control voltage of the VCO. The method further includes, in a normal mode: (1) monitoring a voltage level of the control voltage of the VCO by generating a monitored indicator value corresponding to the voltage level of the control voltage of the VCO; and (2) asserting the loss of feedback signal based on a comparison of the monitored indicator value and the indicator value.Type: GrantFiled: January 28, 2010Date of Patent: September 13, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Hector Sanchez, Gayathri A. Bhagavatheeswaran, Xinghai Tang
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Patent number: 7986172Abstract: A switching circuit includes first and second transistors, and a driver circuit. The first transistor has a first current electrode coupled to a first power supply voltage terminal, a second current electrode, and a control electrode. The second transistor has a first current electrode coupled to the second current electrode of the first transistor, a second current electrode coupled to a second power supply voltage terminal, and a control electrode. The driver circuit has an input for receiving an input signal, and an output coupled to the control electrode of the first transistor. The driver circuit precharges the control electrode of the first transistor to a first predetermined voltage, and in response to the input signal transitioning from a first logic state to a second logic state, the driver circuit provides a second predetermined voltage to the control electrode of the first transistor to cause the first transistor to be conductive.Type: GrantFiled: August 31, 2009Date of Patent: July 26, 2011Assignee: Freescale Semiconductor, Inc.Inventor: Thierry Sicard
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Patent number: 7957190Abstract: A memory comprising a plurality of P-channel split-gate memory cells are organized in rows and columns. Each of the plurality of P-channel split-gate memory cells comprises a select gate, a control gate, a source region, a drain region, a channel region, and a charge storage layer comprising nanocrystals. Programming a memory cell of the plurality of P-channel split-gate memory cells comprises injecting electrons from a channel region of the memory cell to the charge storage layer. Erasing the memory cell comprises injecting holes from the channel region to the charge storage region.Type: GrantFiled: May 30, 2008Date of Patent: June 7, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Cheong M. Hong, Sung-Taeg Kang, Brian A. Winstead
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Patent number: 7924131Abstract: An electrical component (100) having an inductor includes: (a) a first substrate (102) comprising at least one first electrically conductive layer (108, 110, 112); (b) one or more second substrates (104, 106) comprising at least one second electrically conductive layer (120, 132, 144); and (c) one or more electrical interconnections (124, 134, 142) electrically coupling the at least one first electrically conductive layer and the at least one second electrically conductive layer, wherein the one or more first electrically conductive layers, the one or more second electrically conductive layers and the one or more electrical interconnections are electrically coupled together to form the inductor (150).Type: GrantFiled: May 19, 2006Date of Patent: April 12, 2011Assignee: Freescale Semiconductor, Inc.Inventor: James A. Walls
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Patent number: 7919006Abstract: A method for making a MEMS structure comprises patterning recesses in a dielectric layer overlying a substrate, each recess being disposed between adjacent mesas of dielectric material. A conformal layer of semiconductor material is formed overlying the recesses and mesas. The conformal layer is chemical mechanically polished to form a chemical mechanical polished surface, wherein the chemical mechanical polishing is sufficient to create dished portions of semiconductor material within the plurality of recesses. Each dished portion has a depth proximate a central portion thereof that is less than a thickness of the semiconductor material proximate an outer portion thereof. A semiconductor wafer is then bonded to the chemical mechanical polished surface. The bonded semiconductor wafer is patterned with openings according to the requirements of a desired MEMS transducer. Lastly, the MEMS transducer is released.Type: GrantFiled: October 31, 2007Date of Patent: April 5, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Woo Tae Park, Hemant D. Desai
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Patent number: 7903483Abstract: An integrated circuit having a memory and a method for operating the memory are provided. The method for operating the memory comprises: accessing a first portion of the memory, the first portion having a first access margin; detecting an error in the first portion of the memory; changing the first access margin to a second access margin, the second access margin being different than the first access margin; determining that the error is corrected with the first portion having the second access margin; and storing an access assist bit in a first storage element, the access assist bit corresponding to the first portion, wherein the assist bit, when set, indicates that subsequent accesses to the first portion are accomplished at the second access margin.Type: GrantFiled: November 21, 2008Date of Patent: March 8, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Andrew C. Russell, Shayan Zhang
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Patent number: 7867858Abstract: A method includes forming a first transistor having a first gate dielectric thickness and a first source/drain extension depth, a second transistor having a second gate dielectric thickness and the first source/drain extension depth, and a third transistor having the second gate dielectric thickness and a second source/drain extension depth. The second source/drain extension depth is greater than the first source/drain extension depth. The second gate dielectric thickness is greater than the first gate dielectric thickness. The first transistor is used in a logic circuit. The third transistor is used in an I/O circuit. The second transistor is made without extra processing steps and is better than either the first or third transistor for coupling a power supply terminal to the logic circuit in a power-up mode and decoupling the power supply terminal from the logic circuit in a power-down mode.Type: GrantFiled: March 31, 2008Date of Patent: January 11, 2011Assignee: Freescale Semiconductor, Inc.Inventors: Giri Nallapati, Sushama Davar, Robert E. Booth, Michael P. Woo, Mahbub M. Rashed
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Patent number: 7821055Abstract: A method of making a semiconductor device on a semiconductor layer includes forming a gate dielectric and a first layer of gate material over the gate dielectric. The first layer is etched to remove a portion of the first layer of gate material over a first portion of the semiconductor layer and to leave a select gate portion. A storage layer is formed over the select gate portion and over the first portion of the semiconductor layer. A second layer of gate material is formed over the storage layer. The second layer of gate material is etched to remove a first portion of the second layer of gate material over a first portion of the select gate portion. A portion of the first portion of the select gate is etched out to leave an L-shaped select structure. The result is a memory cell with an L-shaped select gate.Type: GrantFiled: March 31, 2009Date of Patent: October 26, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Konstantin V. Loiko, Cheong M. Hong, Sung-Taeg Kang, Taras A. Kirichenko, Brian A. Winstead
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Patent number: 7805590Abstract: A coprocessor (14) may be used to perform one or more specialized operations that can be off-loaded from a primary or general purpose processor (12). It is important to allow efficient communication and interfacing between the processor (12) and the coprocessor (14). In one embodiment, a coprocessor (14) generates and provides instructions (200, 220) to an instruction pipe (20) in the processor (12). Because the coprocessor (14) generated instructions are part of the standard instruction set of the processor (12), cache (70) coherency is easy to maintain. Also, circuitry (102) in coprocessor (14) may perform an operation on data while circuitry (106) in coprocessor (14) is concurrently generating processor instructions (200, 220).Type: GrantFiled: June 27, 2006Date of Patent: September 28, 2010Assignee: Freescale Semiconductor, Inc.Inventors: William C. Moyer, Kevin B. Traylor
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Patent number: 7799678Abstract: A method for forming a TSV layout reduces recessing in a silicon nitride layer caused by forming the TSV through a silicon nitride layer having an intrinsic tensile stress or neutral stress. In one embodiment, the method includes compensating for the tensile stressed silicon nitride layer by either moving the TSV location to an area of intrinsic tensile stress, or by substituting a compressively stressed silicon nitride layer in the area of the TSV. The compressively stressed silicon nitride layer experiences less recessing during a TSV etch process than a silicon nitride layer under tensile stress. The smaller recesses are more readily filled when a dielectric liner is applied to the sidewalls of the TSV, reducing the possibility of voids being formed. Also, the smaller recesses require smaller exclusion zones, resulting in less surface area of an integrated circuit being used for the TSVs, as well as greater reliability and improved yields.Type: GrantFiled: January 30, 2008Date of Patent: September 21, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Thomas J. Kropewnicki, Ritwik Chatterjee, Kurt H. Junker
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Patent number: 7800959Abstract: A memory has an array of memory cells, column logic, a write driver, a voltage detector, and a bootstrap circuit. The array of memory cells is coupled to pairs of bit lines and word lines. The column logic is coupled to the array and is for coupling a selected pair of bit lines to a pair of data lines. The write driver is coupled to the pair of data lines. The voltage detector provides an initiate boost signal when a voltage of a first data line of the pair of data lines drops below a first level during the writing of the pair of data lines by the write driver. The bootstrap circuit reduces the voltage of the first data line in response to the boost enable signal. This is particularly beneficial when the number of memory cells on a bit line can vary significantly as in a compiler.Type: GrantFiled: September 19, 2008Date of Patent: September 21, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Lawrence F. Childs, Craig D. Gunderson, Olga R. Lu, James D. Burnett
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Patent number: 7799634Abstract: Nanocrystals are formed over an insulating layer by depositing a semiconductor layer over the insulating layer. The semiconductor layer is annealed to form a plurality of globules from the semiconductor layer. The globules are annealed using oxygen. Semiconductor material is deposited on the plurality of globules to add semiconductor material to the globules. After depositing the semiconductor material, the globules are annealed to form the nanocrystals. The nanocrystals can then be used in a storage layer of a non-volatile memory cell, especially a split-gate non-volatile memory cell having a select gate over the nanocrystals and a control gate adjacent to the select gate.Type: GrantFiled: December 19, 2008Date of Patent: September 21, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Jinmiao J. Shen, Horacio P. Gasquet, Sung-Taeg Kang, Marc A. Rossow
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Patent number: 7796688Abstract: A radio receiver for receiving a signal is provided. The radio receiver comprises an equalizer configured to perform a constant modulus algorithm initialized using a first set of coefficients on the received signal and for generating an equalized signal. The radio receiver further comprises a demodulator coupled to the equalizer for demodulating the equalized signal. The radio receiver further comprises a lowpass filter coupled to the demodulator for lowpass filtering the demodulated signal to detect a spurious signal and to generate an offset signal. The radio receiver further comprises a coefficient generator coupled to the lowpass filter and configured to compare the offset signal to a predetermined threshold, and if the offset signal satisfies a predetermined condition in relation to the predetermined threshold, then to generate a second set of coefficients for re-initializing the constant modulus algorithm.Type: GrantFiled: May 22, 2007Date of Patent: September 14, 2010Assignee: Freescale Semiconductor, Inc.Inventor: Jie Su
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Patent number: 7795951Abstract: A voltage multiplier (10) including a first clocked multiplier stage (12) having an input and an output and a second clocked multiplier stage (14, 16) having an input and an output is provided. The voltage multiplier further includes an input level regulator (18) coupled to the input of the first multiplier stage. The voltage multiplier further includes a feedback bias control circuit (32) coupled to the input level regulator, wherein the feedback bias control circuit is further coupled to receive the output (50) of the second multiplier stage, and wherein the feedback bias control circuit generates a feedback signal (58) affecting an output of the input level regulator based on a comparison between a voltage proportional to a voltage at the output of the second clocked multiplier stage and a reference voltage.Type: GrantFiled: November 30, 2007Date of Patent: September 14, 2010Assignee: Freescale Semiconductor, Inc.Inventor: Jon S. Choy
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Patent number: 7795904Abstract: A switching circuit includes a first transistor and a driver circuit. The first transistor has a first current electrode coupled to a first power supply voltage terminal to receive a first power supply voltage, a control electrode, and a second current electrode coupled to an output terminal. The driver circuit has an output coupled to the control electrode of the first transistor, the driver circuit for providing a bias current to the control electrode of the first transistor that is proportional to an inverse of a square root of a voltage between the first current electrode and the control electrode of the first transistor. A voltage at the output terminal increases linearly during a turn-on period of the first transistor.Type: GrantFiled: August 31, 2009Date of Patent: September 14, 2010Inventor: Thierry Sicard
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Patent number: 7791389Abstract: A circuit has first latch, a second latch, a coupling circuit, and a power down circuit. The first latch has an input/output coupled to a data node. The second latch has an input/output. The coupling circuit is coupled between the input/output of the second latch and the data node. The coupling circuit is enabled during a normal operation of the circuit and disabled during a power down mode of the circuit. The power down control circuit is for disabling the first latch during the power down mode and for a time period after a transition from the power down mode to the normal operation. This allows the second latch to set the state of the first latch when transitioning from the power down mode to the normal mode. Thus normal operation can be fast, and the power down mode can have low leakage current.Type: GrantFiled: January 30, 2008Date of Patent: September 7, 2010Assignee: Freescale Semiconductor, Inc.Inventor: Scott I. Remington
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Patent number: 7785983Abstract: A method for forming a semiconductor device includes providing a semiconductor substrate having a first region and a second region. The first region has one or more first elements and the second region has one or more second elements. The first elements are different from the second elements. A tile location and a first tile surface area for a tile feature on the semiconductor device is defined. An active semiconductor layer is formed over both the first region and the second region of the semiconductor substrate. A first trench is formed in the active semiconductor layer at the tile location using a negative tone mask. The first trench has a first depth and forms at least a portion of the tile feature. A second trench is formed in the active semiconductor layer using a positive tone mask. The second trench has a second depth different than the first depth.Type: GrantFiled: March 7, 2007Date of Patent: August 31, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Omar Zia, Ruiqi Tian