Technical Support Electrical Engineer
Resume:
Henry F. Liu
Worcester, MA ****4
Email: *****@***.***
Professional Profile
As Electrical/Electronic Engineer, test and troubleshoot failure problems for existing and new designs. Manufacturing Engineering Test Support, Design Verification Test, Validation Test, Prequalification Test, DO-160 EMI Test, preparing for UL Specification Test and Environment Vibrating Test. Repair malfunction existing products. New product housing fabrication and prototype. Alternate component selection to solve obsolete issues for existing equipment. Documentation and technical support for engineering designs and manufacturing. Interface for internal and external out sources. UL, CSA, CE and NEC standard. In house, remote, and customer site technical support extensive overseas experience. Knowledge on usage of OrCAD, lab equipment such as Oscilloscope, RF Generator, Pulse Generator, RF Power Meter, Spectrum Analyzer, Tektronix, Agilent Technologies' Network Analyzers, BOSE Automation Test System with National Instruments, LabView and Test Stand software packages, SPEA Flying Probe Test.
Professional Portfolio
COLLINS AEROSPACE, Windsor Locks, CT 7/2023 - 12/2023
Electrical Engineer in supporting EMI Test (Six months contract with Security Clearance required position)
Responsible for interpreting customer EMI Test requirements to the test plan with the compliance of MIL-STD as of 461s and
the company internal technical guides, and safety test policy before prepairing a test procedure. Prepairing test equipment in
good validation and inspection conditions before the EMI Test.
L3HARRIS Technologies 7/2022 – 3/2023
A Defense Industry for IMS (Integrated Maritime System)
Sr. Assoc. Electrical Engineer (an Active DoD Secrete Security Clearance required for this position)
Reponsible for Integration and Test System: Solving failure of Alarm and Announcing System to support Manuacturing
Production and Customers
- Working on BMS (Battery Monitoring System) project for U.S Navy. Test and troubleshoot to solve the noise (EMI) problem and design cables.
- Working on Raytheon IAC Project: As an Engineering change coordinator, driving an acitivity from creation through implementation, Interface with the engineering team to provide an effective engineering change review and approval, and cross-functional initiative for the ERC/ECO document and process. New components selection, such as cRIO type for obsolete replacement as cFP type of National Instruments components and North Atlantic Industries Serial I/O VME 6U 64G5-2 and VME 6U Transition Module 64RTG5-1 to replace obsolete VME-64D1 and 64RT3 Boards. Hardness design and creating drawings by using AutoCAD tool and OrCAD for chematic capture. Supporting manufacturing to solve technical problems.
API Technologies, Marlborough, MA 5/2019 - 11/2022
A Defense Industry Contract Company
System Test Engineering Tech III ( an Active DoD Secrete Security Clearance required for this position)
Responsible for supporting customers and Working in a Cleanroom Environment:
- Supported L3-Harris IFM (Instantaneous Frequency Measurement): Setup test equipment such as RF Generators, Pulse Generator, Power Meter, Oscilloscop. Calibrate test equipment, test (13 tests), tuning resistor that contol video, diagnosis, evaluation, and process repairing (SOT alignment procedure Fine tier, Coarse, M tiers as M1, M2 and M3, Initial Characterization for Frequency Error Optimization, Initial Characterization for Cell and Margin, Check Count Procedure, BDLUT Procedure and tuning using ATP tests and Digital Temperature Compensation for Room, Cold and Hot). Used Excel Macro program to excute RAW data for analysis.[1]
- Supported Raytheon Product IMA (Integrated Microwave Assemblies): Setup test, tune, trim, debug the failure of Q-Band, Ka Band, MEMIC for Power Amplifier and Combiners. Training production test operators.
- Supported Orbital GPS Attenna Product Line: Setup test instruments such as Network analyzer, Frequency Generator, Power Meter and Vibration test equipment for testing, tuning the Orbital Cavity Filter. Temp-Cycle test, EMC and Vibration test. Use Excel Macro for test data analysis to support QC and customer.
- Supported 6-Channel Chicklet Power divider Porduction Line: Setup Network Analyzer, tune, test and using Excel Macro program to analyze test data to support QC and customer. Training production line test operator. Also supporting other product such as High Frequency Swith product.
- Software used: Microsoft Office Package.
Astronics-Aerosat, Manchester, NH 11/2016 - 4/2019
Electrical Test Engineering - Engineering Research and Development Laboratory
Responsible for testing to support Development Engineering and Manufacturing Production such as RF Products, Antenna RF Range test, RDU test, Power Supply test, Chamber cycling temporature test, Motor and Encoder test, HALT functionality test,
DVT test, RDU COTS Board environmental and thermal test, EMI, DO-160 Test. Troubleshooting and solving failure problems for Antenna manufunction and noise. Worked on multiple Project Design and Development for (1) Interrup Power Supply Design (2)Gimbal Slip-Ring Tester and (3)Encoder Tester. Test and support for laboratories test such as Retlif Laboratories in Goffstown, NH, ETSI Test Laboratory in Woburn, MA, and CMG for Environment Vibrating Test in Little, MA. Test data analysis and write Test reports.
Software tools used: Linux, MathLab for ELmo Stepper motor servo drive, OrCad, Microsoft Visio, Microsoft Office and JIRA-Project Management software.
I F Engineering, Duddley, MA 12/2015 - 06/2016
6-Month Contract position - RF Test Consultant
Responsible for hybrid product setting, configuring, tuning, testing, modifying circuit to measure RF military components at frequency ranges from 9KHz - 4.5GHz and 300KHz - 8.5GHz. Knowledge on usage of lab equipments: Aligent Technologies Network Analyzer Model E5071C and E5071B. Measured RF output, hermonics, VSWR and scattering parameters
GROVE INSTRUMENTS, Worcester, MA 6/2014 - 5/2015
Electrical & Electromechanical Engineering Consultant - Medical Equipment
Worked on Medtronic project for diabetes test equipment that included Rack mount and hand held device. Responsible for Electro-mechanical and electrical hardware and hardness design that involved with Optical and Laser systems. Building prototype, testing and troubleshooting to electrical and mechanical problems. Selecting parts, creating schematic, mechanical [2]drawings, documentation and ECO. Knowledge of installing and wiring fiber optic component.
Software used: OrCad and Microsoft package
NEWLANS, Acton, MA 4/2013 - 6/2014
Electrical Test Engineering Consultant - Research on RF testing for wireless products
Worked on Research for High-Q for Radio Frequency by using current driving magnetic technique to measure a capacitance.
Responsibilities for testing RF Broadband wireless product such as LTE bands for smart phone 2G/3G/4G RF CMOS processes. Researched and Tested Filter modules with different configuration test it with RF CMOS package, analysis signal response for input loss, insertion loss, return loss and output loss. Used MS-Excel application for test data(s) documentation and library. Lab equipments used: Oscilloscope, Function Generator, Network Analyzer, VDM, Power Supply, etc. Knowledge of working on Dielectric Strength Test and SMT components. Software used: OrCad and Microsoft Office
KELLY ENGINEERING RESOURCES, Burlington, MA 4/2011 - 4/2013
Electrical Test Engineer – Contract position, clients support for RF Test
Responsibilities for technical support Quality Control laboratory electrical test by using Radio-Frequency energy for Time Domain reflection measurement techniques, RF impedance matching, the nature and consequences of reflected power (Time Domain reflection) to approve manufacturing production implementing process for customer’s order cables and coaxial cables in specification and qualification.
·Test turbo twin cable from single pair to 8 pairs of conductor component and multiple pairs such as communication data cables.
·Measured electrical characteristics for Differential Impedance, Mutual Capacitance for pair of components and multi-pair components, Time Delay, Time Delay Skew (within pair and between pair), Attenuation, Near-End/Far-End Crosstalk, Eye Pattern such as Input, Mask and Length and Conductor DC Resistance.
·Test Equipment & Instrument used: Tektronix TDS 8000 and 11802 Digital Sampling Oscilloscope, Agilent Technology N5230A 300kHz-30 GHz PNAL Network Analyzer. Software used: Microsoft Office.
ELECTRICAL CONTRACT WORK, Pepperell, MA 9/2009 - 3/2010 Electrical Contractor – Self Contract Work -- The project was starting from the scratch. Used CAD software tool for creating panel circuit and power distribution design. Creating document for electrical permit approval.
·Worked on Paulgus Plaza Mall commercial building to organize distribution power lines and control panel for one business unit. Removed all existing live power lines and junction boxes on the top of building structures those were sitting there with live power for years but did not use. Re-run new network distributing power lines for business show room lighting, kitchen power network outlets with ground fault protection, exhausted fan system and high voltage for washer and dryer machine outlets
·Made drawings and document to get local township permit. All works were done with NEC compliances and local Pepperell Town government fire and safety code regulation inspection passed. Software used: CAD Drawing
BOSE CORPORATION, Framingham, MA 9/2008 - 9/2009
Manufacturing Test Engineering Support
·Responsible for manufacturing test engineering supporting production test. Building automation PCB test rack system, NI hardware software installing and configuration, hardware, Air flow circulation, harness designing and Cisco Ethernet/WF configuration and set up.
·Developed and built custom design test equipment for manufacturing test and Engineering Validation test.
·Integrated RF test equipment system for Engineering Validation test and manufacturing test.
·Supported speaker pre-production test by using thermal test method.
·Bose Automation test system with National Instruments LabView and Test Stand Packages, and SPEA Flying Probe Test
·Daily prepared product test and set-up test program, Hi-Pot test equipment safety checked, solved test equipment malfunction, worked monthly equipment maintenance and repair. Automation test, LabView and Test Stand
·Knowledge on usage of SAP and Microsoft office package, OrCAD and MathLab.
BOSE CORPORATION, Framingham, MA 6/2005 - 9/2008
Electrical Engineer - Contract position - The project starting on the front-end of scratch equipment.
·Hardware designed/developed and fabricated custom design test equipment for Custom Equipment Design group, implement and support of electrical assemblies in the Manufacturing department such as PC Boards, sub-assemblies and Cable design and assemblies. Provided technical support for internal sales, R&D, manufacturing engineering departments
·Circuit design and system integrated, tested and debugged test system. Sketched schematic and Wrote ECO’s and documented product processing, tested products and wrote test procedures
·Contacted source vendors for product metal chassis fabrication, PCB assemblies and components
·Selected new components to replace discontinued items
·Knowledge on usage of SAP and Microsoft office package, OrCAD and MathLab.
SOUND VISION, INC., Wayland, MA 11/2000 - 4/2004
Manufacturing Engineer - Digital Imaging and Audio Technology
·Transitioned all state-of-the-art digital imaging designs to the Asia-based customer manufacturing sites
·Developed and documented production processes, ECOs, test software, and interfaced with customers that identified/solved their problems
·Solved noise problems for Strobe (Flash circuit). Solved EMI/EMC problem.
·Designed and built prototype for product samples and test tools
·Used Or CAD for circuit sketch and PADS for PC board layout
OMNIREL CORPORATION/INTERNATIONAL RECTIFIER CORPORATION, Leominster, MA 9/1999 - 11/2000
Test Engineer - Semiconductor/Hybrid products and Tyco’s Surveillance component test Management. Working in a Cleanroom Environment
Responsible for Semiconductor and Hybrid product test equipment, test fixture design, development, and maintenance for networking system based on mainframe, host and bench test PC. Knowledge of Silicon.
·Collected test data that analyzed/summarized data through the utilization of MS-Excel spreadsheets and charts
·Performed technical test/documentation support, developed test procedures, and solved test failure problems that supported production department and customers
·Provided surveillance management for TYCO's special design components for in ocean Fiber optic internet system.
·Responsible for hardware design and developed Surveillance Burn-in System
·Supplied drawings and documents for Burn-in System
·SOftware used: OrCAD and Microsoft Office.
COPLEY CONTROLS CORPORATION, Westwood, MA 8/1998 - 9/1999 Associate Engineer - 601 Power Supply for driving MRI System
·Contributed to Development and Building prototype, testing, debugging, and modifiyng low/high voltages for driver/power supply model 601
·Utilized Input 600AC-35A and Output 400VDC-47ADC
·Modified test fixture and wrote test procedures, product documentation, and ECOs
·Research, custom winding multiple layers for magnetic transformers and inductors for filtering of noise
·Provided engineering evaluation, UL, CSA, CE standard, qualifications, reliability, safety, and failure testing
·Knowledge on usage of SAP, OrCAD and Microsoft office package.
ENSONIQ CORPORATION, Malvern, PA 8/1990 – 7/1998
Manufacturing Test Engineer-Multimedia Department (1994 – 1998)
Responsible for PC-based functional test fixtures to support manufacturing production floor: Knowledge of working on SMT and fine pin components such as 120 pins and BGAs, etc.
·Troubleshoot and solved failure of voice, fax, and modem/sound/PCI cards
·Provided technical support to production floor and supervisors, which solved failure of products
Manufacturing Test Engineer-Music Instrument Department (1990 – 1994)
Responsible for PC-based functional test fixtures to support manufacturing production floor:
·Troubleshoot to component level based on the microprocessor circuitry, A/D & D/A converters, OP-AMP, L.E.D.
·Supported QC-Product Control Engineer in order to solve, analyze. and report failures
·Performed maintenance/repair to bench test PCs, GenRad automate test machines, PC board functional pins probe test fixtures, and in-house design-based functional test equipment
·Software used: OrCAD and Microsoft Office.
FORD AEROSPACE/ELECTRONIC CORPORATION, Horsham/Lansdale, PA 5/1988 - 8/1990
Equipment Engineer
·Responsible for hardware design/software development for automobile electronic part test equipment
·Designed control circuit for stepping motor through the utilization of data acquisition and control unit HP-3852A
·Worked on project design for auto parts test system through the utilization of electronic simulation circuit that tested odometer, fuel meter, and battery
·Created design for analog/digital circuit boards, input/output interface boards, electrical relay board, panel wirings, connections, and accessories
·Interfaced with mechanical engineers for quality control purposes
·Software used: OrCAD, RAIL (Pascal), Microsoft Office.
E.I. DUPONT DE NEMOURS AND COMPANY INCORPORATION, Newark, DE 7/1987 - 5/1988
Electrical/Electronics Engineer - Engineering Consultant by Franklin Institute
·Responsible for hardware on bRISC-PC System project/packaging design, and documented support for manufacturing
·Researched product information and selected component specifications for new product design
·Designed electrical/electronic circuits, schematics, wiring diagrams for commercial washers and PC boards
PROFESSIONAL DEVELOPMENT TOOLS
·AutoCAD: AutoCAD 2004, AutoDesk Inventor 8/3D and Inventor Advanced, OrCAD, PSpice
·Microsoft: Windows, Office Words, Excel
·Knowledge on Computer languages and programming: Visual Basic, C/C++, C#, LabView
·Manufacturing Lean, 5S and 5S+1, and Kaizen System
·Knowledge on usage of VISIO and SAP
Education
Temple University, Philadelphia, PA
Bachelor of Science-Electrical Engineering Technology and Alumni Member
Community College of Philadelphia, Philadelphia, PA
Associate of Applied Science-Electronic Engineering Technology and Alumni Member
Continuing Education
·Certificates for Project Management and Failure Mode and Effects Analysis (FMEA)
·Certified Engineering Technologist in Electrical Engineering Technology
·Certificate - Machine Vision in RAIL Programming MacRAIL and ASAP
·Certificate - Machine Vision in AV90 Operations1/V91
·Award - Strategic Business Award for bRISC-PC System Project Design
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