Electrical Engineer Design

LEI YIN

**** ******* ***, *** *****, CA *****

E-mail: *******@*****.***

Phone: 916-***-****

Objective: Sr. Electrical Engineer

Experience: Over 20 years of extensive electrical engineering experience

in board level and system level embedded design, including

microprocessors, analog/digital, low noise and low power, PWM

and motion control, Ethernet/USB/CAN/SPI and RS232/485,

Sensors/Encoders, Touch Screen keypads, DC/DC, FPGA, PLC, RFID,

EMI reduction, hands-on Schematic design and PCB layout with

ORCAD and other CAD tools, product design specification,

verification and cost estimation, working with suppliers and

customers for applications specific designs. Experienced with

full product life cycle from engineering through manufacturing,

products certifications, customer support, vendor

selection/qualification and cost reduction.

Bilingual in English and Chinese (Mandarin and Shanghai dialog).

U.S. Citizen

01/08-06/09: DIGI International - Rabbit Davis,California

Sr. Hardware Engineer

- Complete architect and electrical design of MiniCore RCM5700

with scalable modulation for application flexibility and cost

reduction. The Rabbit 5000 microprocessor based core module

is clocked at 50Mhz. It integrates 100/10 base Ethernet and

expendable with USB/Serial/XB interfaces. It packs a rich

embedded feature set on an ultra-compact mini PCI Express

form factor (1.186" x 2.006" x 0.11") for cost sensitive

applications. Complete schematic and tech document can be

found on www.rabbit.com/products/rcm5700/

- Complete the interface board for RCM5700 which includes USB,

power Auto Sourcing and Switching between DC and USB power

sources with configurable current limiting.

- Completed a series of user expansion boards for RCM5700,

including RS232/485 Serial communication, XB-Zigbee, Digital

I/O and prototyping board.

- Complete architect and electrical design of XB/Satellite

Adapter. The adapter connects Satellite signal to local

network utilize ZigBee technology.

- Responsible for new products development and support,

including electrical design, prototyping/verification,

seeking new supplies globally to meet budget requirement,

generating BOM, DVT and production test specifications.

- Hands-on Schematic design and PCB layout with CADSTAR and

PCAD.

- Help tech writer for Chinese translation of the user's

manual, tech note and application note.

01/07-01/08: Automatic Bar Controls Vacaville,California

Sr. Electrical Engineer

- Complete architect and electrical design/prototyping of Pizza

Maker Machine, Liquid Dispenser, and Tea Tower with Atmel AVR

microprocessors, Touch Screen Keypads with Atmel Q-touch and

Q- matrix technologies, DC/DC, Stepper Motor drivers, SPI bus

and RS232/485.

- Redesign the existing products with new technologies,

including RFID, touch screen keypads and motion/tilt sensors,

to enhance the functionality and reliability, make it more

users friendly while reducing production cost.

- Responsibility includes schematic design, PCB layout,

prototyping, components selection, production release

document (BOM, PCB FAB/Assembly and test specification),

cost estimation and Lab tests for products compliances (FCC,

UL and CE).

- The tools and skills in all the projects include schematic

design and PCB layout with ORCAD 15.7, Multi-microprocessors

with SPI bus,

generating initial code and debugging with AVR Studio 4 and

JTAG, Touch Screen keypad design and evaluation test, sensors

signals validation/toleration, EMI test with Spectrum.

- Programming in Microsoft C++ for hardware development.

- Assist purchasing to source suppliers and manufactures in

China and Taiwan to reduce production cost, including

suppliers/manufactures qualification, tech support and

Chinese/English communication.

- Acceleration R/D term member for new products development.

05/03-07/05 ZHONG-ZHI-JIE Electronic Equipment Manufacture Co., LTD

Sr. Electrical Engineer

- Develop diagnostic and inspection systems for semiconductor

manufacturers.

- Align product line with market competition and R/D road map.

- Direct and specify products specifications with industry

compliance.

- Design schematic and PCB layout with ORCAD and ACCEL EDA

software for embedded controllers with analog/digital

circuits.

- Evaluate and specify key components from selected vendors.

- Prototype and diagnosis the functionality of electrical

circuitry.

- Provide test procedures for design verification and

production QA.

- Establish R/D budget, implement schedule and production cost.

10/00-04/03 ASYST Technologies, Inc. Fremont, California

Sr. Electrical Engineer (AMHS)

- Responsible for electrical R/D for the Automation Material

Handling System product (Fastrack).

- Generate design specifications and guidelines for the team

members.

- Hands-on schematic and PCB designs including 80C51 based

stepper motor drive, Analog tension control, optical and

temperature sensors signals process, safety interface,

optical isolated data I/O and E84 interface. .

- Integrate 486 computer board with servo motor interface for

independent 3-axes motion control.

- Hands-on schematic and PCB layout with ORCAD and ACCEL EDA

software.

- Design FPGA with SPICE software.

- Complete the Fastrack system integration and installation

project for

AMTEL Corp. It includes system wiring, Power PC and PCI/PCI-X

based control console, Ethernet Switch Hub, UPS, AC/DC power

distribution, CAN communication network, E-Stop and EMO

distribution.

- Analysis and debug with software engineers for system

integration.

- Provide test procedures for design verification and customer

acceptance certification.

- Establish R/D budget and implement schedule.

- Provide production with ICT and FT specifications for PCB

assemblies.

- Communicate and coordinate with all parties, including

electrical/mechanical, software, off shore partners and

outside contractors to ensure the execution of project plans.

- Provide top management and engineering staffs with

engineering design update for on-going review.

- Co-work with Phytec for application specific design.

- Co-work with TUV test Lab to ensure that design works meet CE

and S2/S8 specifications for EMC/LVD and human/machine safety

requirements.

- Specify and select vendors/suppliers for key components.

- Help buyers with alternative vendors and manufacturers for

cost reduction and availability.

04/92-10/00: CYBOR CORPORATION San Jose, California

Sr. Electrical Engineer

- Provide products design specifications. The product line

includes CYBOR 5000 Metering Pump and Waste Chemical

Evacuation system for Semiconductor Manufacturers. (Received

patent for design)

- Complete PCB designs including Metering Pump controller with

80C196, 80C51 and TMS320 c2500 microprocessors, liquid level

sensor signal process with A/D conversion, Waste Evacuation

System with FPGA, optical isolated serial communication,

Stepper motor drivers and Solenoid drivers, Rotary encoders

and pressure sensors..

- Design analog/digital circuits and embedded controllers with

ORCAD and ACCEL EDA software for both schematic capture and

PCB layout.

- Design FPGA with SPICE software.

- Coordinate and participate in engineering review with

electrical, mechanical and software engineering staffs.

- Evaluate and specify key components from selected vendors.

- Build up DI water re-circulating system with Siemens PLC

devices for in-house engineering use.

- Co-work with TUV test Lab to ensure that design works meet CE

specifications for EMC/LVD requirements.

- Analysis and debug with software engineers for product

development.

- Provide test procedures for design verification and

production QA.

- Establish R/D budget, implement schedule and production cost.

- Programming in Archimedes C and assembly language for 80c51.

- Help buyers with alternative vendors and manufacturers for

cost reduction and availability.

- Convert accounting system with Dbase software program.

11/86-04/92: BALCO, INCORPORATED San Jose, California

Electronics Engineer

- Design analog/digital circuits and embedded controllers with

TANGO (earlier version of ACCEL EDA) software for both

schematic capture and PCB layout.

- Complete PCB designs including Engine Computer Scanner with

NEC 7800 microprocessor and Wheel Alignment with Intel 8080

microprocessor.

- Program assembly languages for Intel 8080 and NEC 7800.

- Build prototype for design verification.

- Program Dbase for automotive test database process.

Skills:

- 20 years of electrical engineering experience in embedded

designs, including microprocessor core modules, semiconductor

automation equipment, automobile diagnostic tools and food

industry machines.

- Hands-on Schematic design and PCB layout (multi-layers in

0402) with ORCAD, CADSTAR, ACCEL EDA, PROTEL. Tango/Schema

and PCAD.

- Experienced in EMI reduction in both Schematic design and PCB

layout.

- Experienced in Rabbit 5000, Atmel AVR (Atmega162 and

ATmega640), Intel 80C196, 80C51, 8080, NEC 7800, TI TMS320,

PHYTEC modules, DIGI XB/ZigBee modules and MobiApps m10

Satellite module.

- Experienced in Ethernet/USB/CAN/SPI/RS232/RS485/ I2C and 1-

wire.

- Experienced in analog/digital design (amplifier, comparator,

opto-isolator, ADC/DAC, switching regulator, 4-20mA

conversion, hot swap, impedance match

- Experienced in low noise and low power design, including bus

termination, filtering and grounding.

- Experienced in Stepper Motor and Solenoid drivers.

- Experienced in sensors/encoders for rotation/speed,

air/liquid pressure, liquid level, positioning and area

detect, including magnetic/optical/ultrasound/pneumatic and

piezoelectric.

- Experienced in DC/DC converter (buck, boost and transformer).

- Experienced in Heat dissipation evaluation and power

semiconductors.

- Experienced in design of Touch Screen Keypads - Atmel Q-touch

and Q-matrix technologies.

- Experienced in FPGA with SPICE software.

- Programming in C, C++ and assembly languages.

- Programming in PLC devices (Siemens).

- Experienced and knowledge in CE requirement for product

development (EMC/LVD).

- Experienced and knowledge in UL requirement.

- Experienced and knowledge in FCC requirement.

- Experienced and knowledge in RoHS requirement.

- Experienced and knowledge in S2/S8 requirement for

Semiconductor Manufacturing Equipment.

- Debugging and diagnosis with emulators..

- Hands on prototyping and design verification.

- Production release with BOM and assembly/test procedures.

Other Skills

- Estimation of R/D budget and product cost.

- Dbase program.

- Bilingual in English and Chinese.

Education: BS, Computer science - 1983

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