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Senior Design Engineer

Location:
Santa Clara, California, 95054, United States
Posted:
March 15, 2011

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Hakki Volkan Sahin

Santa Clara, CA

(408) *** ****

roduvb@r.postjobfree.com

Expertise in RF/ Analog / Mixed Signal / Power Management for Consumer Electronics Market

Results-proven engineering professional offering a 15+ year career in RF/power management/ analog/mixed-signal design that has been distinguished by commended performance and recognized achievements.

Demonstrated success developing/designing industry-leading products for leading-edge power management semiconductor companies. Specialized expertise in engineering next-generation integrated circuits to run intelligent portable and ultra-portable products

Extensive experience in design for manufacturability; various design tools (e.g. Cadence) and process technologies (e.g. BiCMOS, LDMOS); testing for prototype verification; and manufacturing.

Focus on execution by building consensus and providing respected technical/project leadership to cross functional teams, with a track record of on-time, on-budget delivery.

Excellent communication skills in extensive interactions with customers, foundries, and vendors.

SKILLS

15+ years Analog circuit design: Bias circuits, voltage references, low drop-out voltage regulators, load switches.

4+ years RF design: VCOs, LNAs, mixers, Delta-Sigma modulator, codecs

Experience in design, simulation, evaluation, debug and characterization of analog blocks such as operational amplifiers, comparators, bandgap references, linear regulators, clock generation circuitry, frequency synchronization, level shifters, charge pump circuits and power FET drivers.

Integrated circuit lab evaluation and debug work with hands on skills using oscilloscope, spectrum analyzer, network analyzer, micro probe station, temperature forcing equipment, other laboratory equipments.

Experienced user on Cadence Spectre, Cadence Virtuoso, Advanced Design Systems (ADS), Matlab, Signal Processing Workbench, Hspice, SimuCAD, Modelsim, Altera Quartus II VHDL simulation and layout tools.

C programming, perl and python scripting

Windows and Linux/Unix operating systems

PROFESSIONAL EXPERIENCE

DECICON INC, San Jose, CA

Senior Design Engineer, 11 / 2004 to Present

Designed an array of power management IC platform solutions customized to precise client specifications.

Worked on all phases of product development, design, and sustenance.

Key Results:

Developed low-power load switch IP platforms targeting portable and ultra-portable applications, incorporating various “smart” features.

Delivered client-acclaimed designs of various full-function load switch product families based on the above mentioned IP platforms.

Improved electrical specs and footprints to reduce minimum operation voltage, quiescent current, die size, and fit into smaller footprints without compromising switch-resistance variables.

Designed ultra-low power ICs for portable products, delivering the industry’s lowest quiescent current. Commended for creating a very low-power circuitry along with its patented control scheme (#20100079195 - Protected power switch with low current consumption). Mentored new engineers on existing IPs and company platforms to enable efficient development and on-time delivery of products.

Designed USB transceiver, high speed digital I/O blocks, on chip charge pump circuits, low voltage curvature corrected band gap references.

HTA INSTITUTE OF ELECTRONICS, Luzern, Switzerland

Senior Mixed Mode IC Design Engineer, 04 / 2004 – 09 / 2004

Designed, implemented building blocks that is used on-chip ESR spectrometer such as sensor microcoils, VCOs, LNAs, mixers and IF amplifiers, system integration, verification, and chip tests.

XEMICS SA, Neuchatel, Switzerland

Senior RF Engineer, 04 / 2002 – 04 / 2004

Supported and trained FAEs on RF products of Xemics. Solved Customers RF related problems. Trained FAEs on RF layout techniques , RF measurement methods including impedance measurement, de-embedding techniques, amplifier stability and other performance figures. Designed RF modules using Xemics RF transceiver chips operating in ISM band (902MHz-928MHz USA and 869MHz Europe).

KAREL ELECTRONICS CORPORATION, Ankara, Turkey

Technical leader, 09 / 1995 to 04 / 2002

Coordinated and actively participated in the conception, design and development of new and existing wireless products at Karel with the main focus on the RF design. Collaborated with marketing, sales and manufacturing departments in all phases of product cycle. Design responsibilities included hardware/software integration and product conformance tests as well.

Key Results:

Performed design and implementation of a non-blind DECT RF transceiver operating at 1.88 – 1.9 GHz frequency range.

Design work covered the following sub-blocks:

900 MHz VCO based on Colpitts type oscillator using transmission line as a resonator,

Matching circuits between blocks using transmission lines,

Floor planning, PCB layout design, Shielding,

Test setup design for performance measurements.

Performed design and implementation of a POCSAG Pager transmitter operating at VHF band.

Design work covered the following sub-blocks:

Design and implementation of the GMSK filter,

Delta-Sigma Based PLL frequency synthesizer,

20 dBm Class C power stage.

SCIENTIFIC AND TECHNICAL RESEARCH COUNCIL OF TURKEY, INFORMATION TECHNOLOGIES AND ELECTRONICS RESEARCH INSTITUTE (TUBITAK BILTEN), Ankara, Turkey

Senior IC Design Engineer, 08 / 1988 to 09 / 1995

Design engineer leading and participating in commercial/research projects contributing at different levels from hardware to software design with the main focus on the analog IC design.

Key Results:

Performed analog section design and implementation of digital 3x8 PABX IC based on Delta-Sigma A/D and D/A codecs.

Design work covered the following sub-blocks:

13-bit A/D converter using Delta-Sigma modulation technique,

High-speed/high gain bandwidth folded-cascode OTA,

High-speed analog latch based comparator used in delta sigma modulator,

Floor-planning and layout creation of the analog section and the whole chip.

Test setup design for performance measurements.

ELECTRICAL AND ELECTRONICS ENGINEERING DEPARTMENT, MIDDLE EAST TECHNICAL UNIVERSITY (METU), Ankara, Turkey

Research Assistant, 06 / 1987 to 08 / 1988

Taught process control laboratory courses and directed laboratory experiments.

Education

MIDDLE EAST TECHNICAL UNIVERSITY (METU), Ankara, Turkey

MS in Electrical Engineering, 1992

Thesis Title: “Realization of Fundamental Blocks for Analog VLSI Design”

MIDDLE EAST TECHNICAL UNIVERSITY (METU), Ankara, Turkey

BS in Electrical Engineering, 1987

Issued Patent

Protected power switch with low current consumption : Patent No . 20100079195

Selected Publication

T. Yalcin, V. Sahin, G. Boero, R. S. Popovic, “CMOS Circular Geometry VCOs for Microwave Magnetic

Field Generation”, Proceedings of the IEEE RFIC Symposium 2005, Long Beach, CA, 12-14 June 2005

References

References are available upon request.

Residency

Legal Permanent Resident of the United States of America.



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