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ORCIDZakir K. Ahmed 0001
Person information
- affiliation: Intel, Intel Labs, Hillsboro, OR, USA
- affiliation: East West University, Dhaka, Bangladesh
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2020 – today
- 2025
[j7]Suhwan Kim
, Harish K. Krishnamurthy, Zakir K. Ahmed, Nachiket V. Desai, Sheldon Weng, Anne Augustine, Huong T. Do, Jingshu Yu, Phong D. Bach, Xiaosen Liu, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Monolithic, 10.5 W/mm2, 600 MHz Top-Metal and C4 Planar Spiral Inductor-Based Integrated Buck Voltage Regulator on 16 nm Class. IEEE J. Solid State Circuits 60(1): 75-84 (2025)- [c20]Zakir K. Ahmed, Suhwan Kim, Charles Augustine, Harish K. Krishnamurthy, Krishnan Ravichandran, James W. Tschanz, Vivek De:
8.8 Fine-Grained Spatial and Temporal Thermal Profiling of a 16nm CMOS Buck Converter and SoC Load-Current Emulator Using Low-Voltage Micron-Scale Thermal Sensors. ISSCC 2025: 172-174 - 2024
- [j6]Nicolas Butzen, Harish K. Krishnamurthy, Jingshu Yu, Zakir K. Ahmed, Sheldon Weng, Krishnan Ravichandran, Ramez Hosseinian Ahangharnejhad, James Waldemer, Christopher Pelto, James W. Tschanz:
A Monolithic 12.7 W/mm2, 92% Peak-Efficiency Switched-Capacitor DC-DC Converter Using CSCR-First Topology. IEEE J. Solid State Circuits 59(12): 4114-4123 (2024) - [c19]Suhwan Kim, Harish K. Krishnamurthy, Zakir K. Ahmed, Nachiket V. Desai, Sheldon Weng, Anne Augustine, Huong T. Do, Jingshu Yu, Phong D. Bach, Xiaosen Liu, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
14.9 A Monolithic 10.5W/mm2600 MHz Top-Metal and C4 Planar Spiral Inductor-Based Integrated Buck Voltage Regulator on 16nm-Class CMOS. ISSCC 2024: 270-272 - [c18]Nicolas Butzen, Harish Krishnamurthy, Jingshu Yu, Zakir K. Ahmed, Sheldon Weng, Krishnan Ravichandran, Ramez Hosseinian Ahangharnejhad, James Waldemer, Chris Pelto, James W. Tschanz:
28.4 A Monolithic 12.7W/mm2 Pmax, 92% Peak-Efficiency CSCR-First Switched-Capacitor DC-DC Converter. ISSCC 2024: 462-464 - 2023
- [c17]Nicolas Butzen, Harish Krishnamurthy, Zakir K. Ahmed, Sheldon Weng, Krishnan Ravichandran, Michael Zelikson, James W. Tschanz, Jonathan Douglas:
A Monolithic 26A/mm2Imax, 88.5% Peak-Efficiency Continuously Scalable Conversion-Ratio Switched-Capacitor DC-DC Converter. ISSCC 2023: 232-233 - 2022
- [c16]Xiaosen Liu, Harish Krishnamurthy, Renzhi Liu, Krishnan Ravichandran, Zakir K. Ahmed, Nachiket V. Desai, Nicolas Butzen, James W. Tschanz, Vivek De:
A 0.76V Vin Triode Region 4A Analog LDO with Distributed Gain Enhancement and Dynamic Load-Current Tracking in Intel 4 CMOS Featuring Active Feedforward Ripple Shaping and On-Chip Power Noise Analyzer. ISSCC 2022: 478-480 - 2021
- [j5]Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Zakir Ahmed, Christopher Schaef, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Universal Modular Hybrid LDO With Fast Load Transient Response and Programmable PSRR in 14-nm CMOS Featuring Dynamic Clamp Strength Tuning. IEEE J. Solid State Circuits 56(8): 2402-2415 (2021) - [c15]Nachiket V. Desai, Harish K. Krishnamurthy, Khondker Zakir Ahmed, Sheldon Weng, Suhwan Kim, Xiaosen Liu, Huong T. Do, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De:
17.4 Peak-Current-Controlled Ganged Integrated High-Frequency Buck Voltage Regulators in 22nm CMOS for Robust Cross-Tile Current Sharing. ISSCC 2021: 262-264 - [c14]Khondker Zakir Ahmed, Nachiket V. Desai, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Dual-Input, Digital Hybrid Buck-LDO System Featuring Fast Load Transient Response, Zero-Wire Current Handover & Input PDN Resonance Reduction. VLSI Circuits 2021: 1-2 - 2020
- [j4]Khondker Zakir Ahmed, Harish K. Krishnamurthy, Charles Augustine, Xiaosen Liu, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Variation-Adaptive Integrated Computational Digital LDO in 22-nm CMOS With Fast Transient Response. IEEE J. Solid State Circuits 55(4): 977-987 (2020) - [c13]Harish K. Krishnamurthy, Zakir A. Khondker, Xiaosen Liu, Nachiket V. Desai, Suhwan Kim, Nicolas Butzen, Sally Amin, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De:
Digital Control of Switching and Linear Integrated Voltage Regulators. CICC 2020: 1-4 - [c12]Zakir K. Ahmed, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Christopher Schaef, Nachiket V. Desai, Krishnan Ravichandran, James W. Tschanz, Vivek De:
An Autonomous Reconfigurable Power Delivery Network (RPDN) for Many-Core SoCs Featuring Dynamic Current Steering. VLSI Circuits 2020: 1-2 - [c11]Xiaosen Liu, Harish K. Krishnamurthy, Claudia P. Barrera, Jing Han, Rajasekhara M. Narayana Bhatla, Scott Chiu, Zakir K. Ahmed, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Dual-Rail Hybrid Analog/Digital LDO with Dynamic Current Steering for Tunable High PSRR and High Efficiency. VLSI Circuits 2020: 1-2
2010 – 2019
- 2019
- [j3]Christopher Schaef, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De, Nachiket V. Desai, Harish K. Krishnamurthy, Xiaosen Liu, Khondker Zakir Ahmed, Suhwan Kim, Sheldon Weng, Huong T. Do, William J. Lambert:
A Light-Load Efficient Fully Integrated Voltage Regulator in 14-nm CMOS With 2.5-nH Package-Embedded Air-Core Inductors. IEEE J. Solid State Circuits 54(12): 3316-3325 (2019) - [c10]Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Zakir Ahmed, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Modular Hybrid LDO with Fast Load-Transient Response and Programmable PSRR in 14nm CMOS Featuring Dynamic Clamp Tuning and Time-Constant Compensation. ISSCC 2019: 234-236 - [c9]Zakir K. Ahmed, Harish K. Krishnamurthy, Charles Augustine, Xiaosen Liu, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De:
A Variation-Adaptive Integrated Computational Digital LDO in 22nm CMOS with Fast Transient Response. VLSI Circuits 2019: 124- - 2017
- [j2]Jong Hwan Ko, Mohammad Faisal Amir, Khondker Zakir Ahmed, Taesik Na, Saibal Mukhopadhyay:
A Single-Chip Image Sensor Node With Energy Harvesting From a CMOS Pixel Array. IEEE Trans. Circuits Syst. I Regul. Pap. 64-I(9): 2295-2307 (2017) - 2016
- [c8]Khondker Zakir Ahmed, Monodeep Kar, Saibal Mukhopadhyay:
(Invited paper) energy delivery for self-powered IoT devices. ASP-DAC 2016: 302-307 - [c7]Khondker Zakir Ahmed, Mohammad Faisal Amir, Jong Hwan Ko, Saibal Mukhopadhyay:
Reconfigurable 96×128 active pixel sensor with 2.1µW/mm2 power generation and regulated multi-domain power delivery for self-powered imaging. ESSCIRC 2016: 507-510 - [c6]Khondker Zakir Ahmed, Saibal Mukhopadhyay:
A single-inductor-cascaded-stage topology for high conversion ratio boost regulator. ICCD 2016: 487-491 - 2014
- [c5]Borislav Alexandrov, Khondker Zakir Ahmed, Saibal Mukhopadhyay:
An on-chip autonomous thermoelectric energy management system for energy-efficient active cooling. ISLPED 2014: 51-56 - 2013
- [c4]Khondker Zakir Ahmed, Saibal Mukhopadhyay:
A 110nA synchronous boost regulator with autonomous bias gating for energy harvesting. CICC 2013: 1-4 - 2012
- [c3]Minki Cho, Muhammad M. Khellah, Kwanyeob Chae, Khondker Zakir Ahmed, James W. Tschanz, Saibal Mukhopadhyay:
Characterization of Inverse Temperature Dependence in logic circuits. CICC 2012: 1-4 - 2011
- [j1]Mohiuddin Hafiz, Khondker Zakir Ahmed, Didar Islam, A. B. M. Harun-ur Rashid:
Design and implementation of a 0.8 V input, 84% duty cycle, variable frequency step-up converter. Microelectron. J. 42(5): 648-660 (2011) - 2010
- [c2]Syed Mustafa Khelat Bari, Didar Islam, Khondker Zakir Ahmed:
Implementation of highly accurate NMOS Vt based clamping technique in low current comparator. APCCAS 2010: 592-595 - [c1]Khondker Zakir Ahmed, Muhammad Shahidul Islam, Syed Mustafa Khelat Bari, Mohammad Riazur Rahman Mazumder, A. B. M. Harun-ur Rashid:
Design of a linearly increasing inrush current limit circuit for DC-DC boost regulators. APCCAS 2010: 863-866
Coauthor Index
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