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Summary
Broad electrical engineering background with extensive experience in
digital IC IO, high speed interconnects, IC package and PCB (PWB) designs,
modeling, testing and simulations. Expert in addressing signal integrity
issues at chip IO, package and board levels. Skilled in IC physical design
phases (backend processes including schematic capture, layout, functional
verification, ECO, etc) of DSP (Digital Signal Processor) IC designs.
Possessed of strong analytical thinking, troubleshooting abilities as well
as excellent interpersonal communication skills. Dedicated team member with
positive contributions to the assigned R&D projects.
Professional Experience
Electric Design Engineer - ASP DSP Design, Texas Instruments - Feb '01 to
Jun 2009:
- DDR, EMIF, PCI and JTAG IO design, timing and SI simulation and analysis
Focused on chip IO interface designs including package and PC board to
guarantee DSP
chip functionality, performance and specs were met on various customer
boards.
In charge of resolving issues in DSP chip major IO buffer circuit logic
function, timing,
driving strength and SI. Pioneered to deliver IBIS models of DSP IO
driver netlists
to external customers generated through TI Spice simulations.
- DSP chip IR drop, Noise, EM and ESD modeling and simulation
Responsible for creating transistor-level or gate-level IR, Noise, EM
and ESD models that
contain millions of transistors and logic gates. Proficient in
performing SPICE simulations to
generate various electric data that were used for DSP chip final
physical ECOs.
- DSP chip package design, modeling and simulation
In charge of selecting suitable package types for DSP chips with
different core (CPU) clock
frequencies. Proficient in generating DSP IO pin map and generating
package electric
models. Designing system level Spice simulation decks including DSP IO,
package and board
models to resolve any system level SI and PI issues. Responsible for
generating various (2D
or 3D) package IBIS models for external customers.
- High speed interconnects (DDR, SERDES interfaces) design, modeling and
simulation
In charge of DSP DDR interface (near end and far end) timing, jitter and
noise analysis.
Generating eye diagrams by running Hspice simulations for data and
address buses.
Coordinating with SERDES macro design team to implement SERDES macro with
DSP chip
IO rings. Creating transmission line models (in S-parameter format) for
package and board
interfaces with HFSS, which were used for performing system-lelvel Spice
or Spectre
simulations with DSP SERDES interface.
- Package signal integrity (SI) and power integrity (PI) modeling,
simulation and analysis
Creating 3D package electrical models including traces, various vias and
power / ground
planes with package electrical modeling tools (including PakSi-E,
Speed2000, HFSS, etc).
Creating system-level Hspice deck including DSP IO driver, package and
board models
For simulating crosstalk, SSN and ground bounce. Analyzing board-level
PDN dynamic IR
drop and switching noise.
- DSP chip Tester Board and VDB design, modeling and measurement
Creating board level SPICE models (both lumped and distributed) of DSP
Tester board based
on board layout. Involved in DSP chip wafer probing, logic function
testing and IO data
measurement.
Package Electric Modeling Engineer - DSPS Packaging Development, Texas
Instruments - May 1999 to Feb 2001:
- IC package electric modeling tool development using C and C++
Developing and maintaining TI internal package electric modeling tool
called PACED, which
saved over half million dollars for TI to buy equivalent commercial
tools.
- IC package design and analysis flow design and implementation
Integrating IC package design flow with IC chip design flow, which
significantly reduced time-
to-market cycle for new semiconductor IC products.
- IC package electric model library creation
Generating both 2D and 3D package electric models for various IC package
types and
archived them into an online-access library in TI intranet, which were
shared with other TI
design teams.
- Electric lab measurement
Initiated an Electric Measurement Lab that was equipped with Vector
Network Analyzer(VNA),
Time Domain Reflectometry (TDR), Signal Generator, Wafer Probe Station,
Spectrum
Analyzer, Oscilloscope, etc.
Participated in designing and making specific IC testchip boards, which
were used to extract
valuable electric data from packaged ICs through measurement. Performed
intensive lab
measurement on various IC packages with TDR and VNA.
- Commercial IC package electric modeling tool evaluation and
implementation
In charge of evaluating all kinds of commercial IC package and PCB
electric modeling tools
based on capability, robustness, easy-to-use and cost. Studied
feasibility of integrating the
features of these tools with TI internal design, modeling and simulation
flow.
Customer Support Engineer - Ansoft Corporation, Scottsdale, Arizona
July'97 - April'99:
- In charge of customer technical support for semiconductor IC package and
PCB electrical
modeling and simulation tool sets that includes TPA, INDMD, CAPMD, PCB
SI, etc.
- Created various electrical benchmark models with the in-house software
tools. Validated
simulation results against industrial standards and real measured data
from major
semiconductor companies like Intel, Texas Instruments, LSI, Amkor, etc.
- Writing technical white papers, user manuals and training tutorials for
company's software tool
sets.
Technical Skills
- Linux / Unix, Windows XP/NT operating systems
- C/C++, Java
- Mentor Graphics Board Station for PCB Design, PADS and HyperLynx
- Cadence Allegro PCB, APD and Encounter
- HSPICE and TI SPICE
- Ansoft HFSS, Apache PakSi-E, Sigrity Speed2000 and Power SI
- Synopsys VHDL/Verilog, PT, DC,PC, ICC, etc
- Mathworks MatLab, Simulink
- HTML, XML, Javascript
- Agilent ADS, Network Analyzer and Spectrum Analyzer
- Tektronix TDR and Cascade Probe Station
Education
MS, Electrical Engineering, University of Arizona, Tucson, AZ
BS, Electrical Engineering, University of Electronic Science and
Technology, Chengdu, China
Heping Yue
Curriculum Vitae
Phone: 972-***-**** (home), 214-***-**** (mobile)
E-Mail: abmpla@r.postjobfree.com
Address: 3304 Spring Mountain, Plano TX, 75025