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Engr. Kashif Nisar
Design Engineer (Integrated Circuit Lab),
National Institute of Electronics, Islamabad, Pakistan.
10 years of Experience in Academia and R&D
MS in Electrical Engineering (SoC)
Linkoping University, Sweden
National Institute of Electronics
Ministry of Science & Technology-Islamabad
Responsibilities at NIE
Working as a Design Engineer in Integrated Circuit Lab
• Working on Full custom design of 8-bit SAR ADC in 65nm TSMC CMOS technology
• Design of Low power All digital delay locked loop in 65nm TSMC kit
• Design of Binary weighted Capacitive Digital to Analog Converter (CDAC) in 65nm
technology
• Design of Ultra low power dynamic latched comparator in 45nm CMOS technology
• Design of Wide range low power current starved inverter
• Design of Phase detector and lock detector
• Design of 5 bit T-Flip flop based counter design in 65nm CMOS technology
• Currently supervising 10 Engineering Students in Chip Designing
• Provides hands-on on Cadence tools to interns
• Conducted various Trainings, Workshops and Seminars on Cadence IC design tools
Responsibilities at Bahria University
• Currently working as a Visiting Lecturer in Computer
Engineering department
• Teaches VLSI design to Computer Engineering Students
Responsibilities at University of Lahore
Worked as a Lecturer (Electrical Engineering Department)
• Taught Electrical and Electronics Engineering courses (Integrated circuits,
Semiconductor materials and diodes, Electronic devices and circuits, Power
electronics and Circuit theory) at undergraduate level in Electrical Engineering
department
• Supervised the final year projects
• Performed Lab experiments
• Program Evaluations and worked with accreditation body
• OBE implementations
• Examination duties such as invigilation's and paper checking.
MS Thesis (DC to DC Converter)
It’s a buck type DC to DC converter designed for Ultra low power applications
using 65nm CMOS Technology in Cadence Virtuoso)
• Voltage mode Control
• Pulse width modulation (PWM)
technique
• Sizing the switches to a low
parasitic output and gate
capacitances to reduce the
capacitive and gate-drive losses.
• Error amplifier biasing current is
chosen a small value (12.5 μA) to
reduce the power dissipations in
the control loop of the system.
Top level design of 8 bit SAR-ADC
Implementation of SAR Logic
Test bench of D-Flip flop
Set-Reset D-Flip flop
Simulation results of D-Flip Flop
Latch Comparator Schematic
Layout of Comparator in Cadence Virtuoso
Parasitic Extraction of Comparator
Simulation Results of Comparator
Delay Locked Loop (DLL) Block Diagram
DLL Implementation in Cadence Virtuoso
Simulation Results
Simulation results (Cont..)
Simulation Results (Cont..)
8-bit Counter design using T-Flip Flop
Delay Cell
Layout of Delay Cell
Schematic of Delay Line
Layout of Delay Line
Schematic of Current Starved Inverter for Delay Cell
DLL IC TapeOut
Conducted Chip Designing Workshop at NIE
Thank You

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Kashif Nisar Interview.pptx

  • 1. Engr. Kashif Nisar Design Engineer (Integrated Circuit Lab), National Institute of Electronics, Islamabad, Pakistan. 10 years of Experience in Academia and R&D MS in Electrical Engineering (SoC) Linkoping University, Sweden National Institute of Electronics Ministry of Science & Technology-Islamabad
  • 2. Responsibilities at NIE Working as a Design Engineer in Integrated Circuit Lab • Working on Full custom design of 8-bit SAR ADC in 65nm TSMC CMOS technology • Design of Low power All digital delay locked loop in 65nm TSMC kit • Design of Binary weighted Capacitive Digital to Analog Converter (CDAC) in 65nm technology • Design of Ultra low power dynamic latched comparator in 45nm CMOS technology • Design of Wide range low power current starved inverter • Design of Phase detector and lock detector • Design of 5 bit T-Flip flop based counter design in 65nm CMOS technology • Currently supervising 10 Engineering Students in Chip Designing • Provides hands-on on Cadence tools to interns • Conducted various Trainings, Workshops and Seminars on Cadence IC design tools
  • 3. Responsibilities at Bahria University • Currently working as a Visiting Lecturer in Computer Engineering department • Teaches VLSI design to Computer Engineering Students
  • 4. Responsibilities at University of Lahore Worked as a Lecturer (Electrical Engineering Department) • Taught Electrical and Electronics Engineering courses (Integrated circuits, Semiconductor materials and diodes, Electronic devices and circuits, Power electronics and Circuit theory) at undergraduate level in Electrical Engineering department • Supervised the final year projects • Performed Lab experiments • Program Evaluations and worked with accreditation body • OBE implementations • Examination duties such as invigilation's and paper checking.
  • 5. MS Thesis (DC to DC Converter) It’s a buck type DC to DC converter designed for Ultra low power applications using 65nm CMOS Technology in Cadence Virtuoso) • Voltage mode Control • Pulse width modulation (PWM) technique • Sizing the switches to a low parasitic output and gate capacitances to reduce the capacitive and gate-drive losses. • Error amplifier biasing current is chosen a small value (12.5 μA) to reduce the power dissipations in the control loop of the system.
  • 6. Top level design of 8 bit SAR-ADC
  • 8. Test bench of D-Flip flop
  • 10. Simulation results of D-Flip Flop
  • 12. Layout of Comparator in Cadence Virtuoso
  • 14. Simulation Results of Comparator
  • 15. Delay Locked Loop (DLL) Block Diagram
  • 16. DLL Implementation in Cadence Virtuoso
  • 20. 8-bit Counter design using T-Flip Flop
  • 25. Schematic of Current Starved Inverter for Delay Cell
  • 27. Conducted Chip Designing Workshop at NIE

Editor's Notes

  1. qi ge……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….