Patents by Inventor Subramanian J. Narayan
Subramanian J. Narayan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10461075Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: GrantFiled: September 24, 2015Date of Patent: October 29, 2019Assignee: Texas Instruments IncorporatedInventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Patent number: 10250253Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: GrantFiled: June 4, 2018Date of Patent: April 2, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Anand Subramanian, Subramanian J. Narayan
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Publication number: 20180287603Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: ApplicationFiled: June 4, 2018Publication date: October 4, 2018Inventors: Anand Subramanian, Subramanian J. Narayan
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Patent number: 9991886Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: GrantFiled: April 24, 2017Date of Patent: June 5, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Anand Subramanian, Subramanian J. Narayan
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Patent number: 9985018Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: GrantFiled: September 24, 2015Date of Patent: May 29, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Publication number: 20170230045Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Inventors: Anand Subramanian, Subramanian J. Narayan
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Patent number: 9634653Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: GrantFiled: December 31, 2014Date of Patent: April 25, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Anand Subramanian, Subramanian J. Narayan
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Publication number: 20160173077Abstract: The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage. A pre-charged comparator is coupled to the pre-charge circuit and receives the supply voltage. The pre-charged comparator generates a transition signal at a transition node. A slope of the transition signal is greater than a slope of the supply voltage. A first diode connected transistor receives the supply voltage. A first capacitor is coupled to the first diode connected transistor. An inverter is coupled to the first diode connected transistor and generates an enable signal when the supply voltage is below a threshold voltage.Type: ApplicationFiled: December 31, 2014Publication date: June 16, 2016Inventors: Anand Subramanian, Subramanian J. Narayan
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Publication number: 20160071839Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: ApplicationFiled: September 24, 2015Publication date: March 10, 2016Inventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Publication number: 20160071838Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: ApplicationFiled: September 24, 2015Publication date: March 10, 2016Inventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Patent number: 9184226Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: GrantFiled: August 15, 2012Date of Patent: November 10, 2015Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Patent number: 8680839Abstract: Offset calibration technique to improve performance of band gap voltage reference. An example of a bandgap reference source includes an output resistor, a first and second transistors and a differential amplifier. A positive-input calibration phase switch is in communication with a positive amplifier input, a emitter of the first and second transistor and a negative-input calibration phase switch in communication with the negative amplifier input, the emitter of the first and second transistor. A positive-output calibration phase switch is in communication with the positive amplifier output, the first and second terminal of the output resistor and a negative-output calibration phase switch is in communication with the negative amplifier output, the first and second terminal of the output resistor. An adjustable resistance is in communication with the emitter of the first transistor, the emitter of the second transistor, and the second terminal of the output resistor.Type: GrantFiled: September 15, 2011Date of Patent: March 25, 2014Assignee: Texas Instruments IncorporatedInventors: Mahadevan Venkiteswaran S., Subramanian J. Narayan, Vadim Ivanov
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Publication number: 20130207221Abstract: A high TCR tungsten resistor on a reverse biased Schottky diode. A high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A high TCR tungsten resistor embedded in a intermetal dielectric layer above a lower interconnect layer and below an upper interconnect layer. A method of forming a high TCR tungsten resistor on a reverse biased Schottky diode. A method of forming high TCR tungsten resistor on an unsilicided polysilicon platform geometry. A method of forming high TCR tungsten resistor between two parallel polysilicon leads on remaining contact etch stop dielectric. A method of forming high TCR tungsten resistor embedded in a inter metal dielectric layer above a lower interconnect layer and below an upper interconnect layer.Type: ApplicationFiled: August 15, 2012Publication date: August 15, 2013Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Russell Carlton McMullan, Binu Kamblath Pushkarakshan, Subramanian J. Narayan, Swaminathan Sankaran, Keith Edmund Kunz
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Publication number: 20130069616Abstract: Offset calibration technique to improve performance of band gap voltage reference. An example of a bandgap reference source includes an output resistor, a first and second transistors and a differential amplifier. A positive-input calibration phase switch is in communication with a positive amplifier input, a emitter of the first and second transistor and a negative-input calibration phase switch in communication with the negative amplifier input, the emitter of the first and second transistor. A positive-output calibration phase switch is in communication with the positive amplifier output, the first and second terminal of the output resistor and a negative-output calibration phase switch is in communication with the negative amplifier output, the first and second terminal of the output resistor. An adjustable resistance is in communication with the emitter of the first transistor, the emitter of the second transistor, and the second terminal of the output resistor.Type: ApplicationFiled: September 15, 2011Publication date: March 21, 2013Applicant: Texas Instruments IncorporatedInventors: Mahadevan Venkiteswaran S., Subramanian J. Narayan, Vadim Ivanov