Tim Larson
Mounds View,United States - Minnesota
Summary
Timothy Larson
Electrical Engineer experienced in a variety or roles and project lifecycle phases from the design phase, manufacturing process development, manufacturing test system design and post-market activities such as CAPAs and reliability improvement projects. Polished in analyzing, troubleshooting and developing solutions for complex technical problems.
Overview
19
19
years of professional experience
Work History
Senior Test Development Engineer
Inspire Medical
05.2023 - Current
- Working as a test development engineer on multiple manufacturing test systems for Implantable Pulse Generators and Accessories.
- Authoring and releasing initial production release of test system design documentation sets for numerous test systems.
- Authoring Qualification Plans/Reports, Test Method Validation Plans/Reports.
- Performing test system integration and tracking/resolving hardware, documentation and software issues in Jira.
- Project owner of multiple test systems including.
Senior Hardware Engineer
Medtronic
01.2022 - Current
- Working in R&D as an interface between manufacturing test and R&D
- Interfacing with Contract Manufacturing during the manufacturing ramp up of a novel therapy product commercial launch
- Primary contact for team of contract manufacturer engineers in charge of test system development
- Revising and authoring test requirement specification documents for 4 PCBA Functional and 3 High Level Assembly Test Systems
- Providing test system design inputs, reviewing and developing test limits, troubleshooting test system integration issues
- Developing software (LabVIEW) and measurement processes of therapy waveforms and uV level noise measurements for characterization and verification
- Authoring work instructions and software validation protocols/reports
- Participating in hardware design reviews and high level project schedule meetings
- Investigated product issues involving hardware and/or software and devised solution
Principal Electrical Engineer
Medtronic
09.2019 - 09.2020
- Successfully led a significant revision of a custom switch-mode DC power supply PCB and performed related testing
- Performed system module characterization testing to determine PCB technical requirements
- Performed characterization of Computing Module Power supply PCB, off the shelf single board computer and LCD monitor
- Electrical design and revie component selection, circuit layout, simulation and analysis
- Authored PCB and module characterization plans and reports
- Tracked design Issues in Team Foundation Server (TFS).
Test Engineer III
Nuvectra
11.2016 - 08.2019
- Worked in a hybrid role with responsibilities in R&D sustaining engineering and manufacturing test systems engineering
- Successfully led several sustaining engineering projects; including obsolescence and reliability improvement projects
- Developed R&D test protocols and reports for product characterization, verification and reliability tests
- Failure Analysis lead for returned product including Implantable Pulse Generators, charging and control peripherals
- Authored failure analysis reports and response letters to questions from foreign and domestic regulatory agencies
- Developed failure analysis test procedures, fixtures and failure analysis software for implantable devices and accessories
- Implemented legacy manufacturing test system software changes which significantly decreased IPG false failure rate
- Authored next generation test system design inputs (FMEA, functional test requirements, user needs)
- Designed next generation electrical test system hardware and software for automated testing of implantable pulse generators
- Designed a new revision of a custom tank charging circuit board for an IPG electrical test system
- Performed electrical simulations and circuit analysis
- Specifying and testing critical test system hardware and instrumentation
- Design and integration of in-circuit test system bed of nails fixture
- Design and integration of test system instrumentation and cabling
- Performed system level integration of software and hardware
- Performed IQ / OQ / PQ of manufacturing test systems and equipment.
Electrical Engineer II
Beckman Coulter Inc
01.2016 - 11.2016
- Led sustaining engineering projects for electrical and electro-mechanical system design changes
- Led obsolescence, reliability improvement and VAVE (cost) driven design change projects of a diverse set of devices including a fluidic sensor assembly with custom PCB, cable assemblies, PCB redesign and layout, handheld barcode scanner and holder and ethernet switch
- Functioned as the company's primary electrical component engineer, leading minor and moderate design changes of highly sensitive components
- Authored design characterization and verification test protocols and reports
- Modified electrical schematics and PCB layouts using OrCAD Capture and Layout
- Authored and released PCB assembly, drawing, Gerber files and BOM documentation for use in production
- Authored and released off the shelf component/part material specification document updates for use in production
- Designed and released pre-production mechanical part models, drawings and assemblies drawings using Solidworks
- Authored project plans, and DCOs (Design Change Orders)
- Designed, assembled and tested prototype circuit boards and electro-mechanical assemblies
- Performed system integration testing of new components, parts and assemblies
- Designed a reliability test fixture and test software for a fluidic pressure sensor assembly.
Systems Engineer II
Beckman Coulter Inc
02.2014 - 01.2016
- Design change project lead for reliability improvement and sustaining engineering projects
- ROHS Mechanical project lead
- Performed system integration testing of new components, parts and assemblies
- Authored characterization and verification test plans and reports for electrical and mechanical components, parts and assemblies
- Authored reliability test plans and test procedures
- Designed test fixture assemblies in Solidworks
- Wrote and debugged custom reliability and characterization test software in C#, Visual Basic 6.0 and LabView
- Developed system failure analysis protocols and authored reports as part of a CAPA team.
Systems Engineer
Beckman Coulter Inc
12.2011 - 02.2014
- Lead builder and system integrator on a project which built 5 prototype Immunoassay instruments for next generation feasibility testing
- Implemented new pumps, valves, thermal control and pipettors in a legacy instrument
- Designed numerous reliability and characterization test fixtures consisting of a wide variety of electrical and mechanical components/instrumentation including pumps, gantries, thermal and motor control
- Wrote and debugged custom reliability and characterization test software in C#, Visual Basic 6.0 and LabView
- Developed characterization and verification test fixtures and test protocols
- Analyzed reliability and characterization test performance and data for use in the improvement of instrument module / component design.
Hardware Test Engineer
CareFusion Plymouth
09.2008 - 03.2010
- Designed, redesigned, assembled and qualified automated manufacturing test system software and hardware for ventilator and ventilator sub-assemblies including PCB's, a display monitors, a flow valve and a HASS system
- Wrote automated test programs and hardware device drivers in National Instruments Labwindows CVI
- Executed HALT (Highly Accelerated Life Testing) thermal and vibration test procedures for two ventilators models
- Performed automated tests system software validation for use in production/manufacturing
- Authored system requirements specification documents for test system hardware and software
- Performed IQ/OQ/PQ on automated manufacturing test systems
- Performed FMEA analysis of automated manufacturing test systems
- Redesigned and developed a lower cost semi-automated final test system for the PTV Ventilator
- Designed and developed automated test system hardware and software for electrical testing of ventilator circuit boards
- Designed and installed supporting test system hardware for a thermal and vibration HASS chamber
- Redesigned and qualified software and hardware for a fully automated pneumatic flow valve test system.
Hardware Test Engineer
GE Security
04.2007 - 04.2008
- Designed a test system interface for a security alarm expander circuit board
- Supported manufacturing operations with test system failures and trained operators
- Debugged automated test hardware and software in ANSI C for RF devices as part of preparation for new product introduction
- Modified and rewrote test software to be more reliable and reduce product test time
- Assisted design engineers with testing to resolve product quality issues
- Modified and updated documentation to reflect changes made to hardware or software
- Created testing, assembly and engineering documents for on-site and off-site facilities.
Electrical Engineer Intern
Dagan Corporation
09.2004 - 01.2007
- Redesigned and updated printed circuit board schematics and layouts for biomedical research instruments using OrCAD Capture and Layout
- Characterized performance of new instrument designs changes
- Created circuit board schematics from paper copies
- Created and updated assembly instructions and operation manuals for instruments
- Designed, built and tested a two channel version of a single channel timed pneumatic pressure instrument
- Functionally tested and calibrated instruments prior to their shipment
- Diagnosed and repaired improperly functioning instruments
- Fully built and assembled PCBs, instruments and accesories for manufacturing
- Assisted with customer service and shipping of product.
Education
Bachelor of Science - Electrical Engineering
University of Minnesota Twin Cities
Skills
- And relevant experience:
- 15 years of experience in a variety of roles such as Electrical, Hardware, System and Test Development Engineer in Medical Device
- Most recently at Medtronic, revised and authored test requirements specifications for 7 systems including three high level Assembly Test Systems
- Authored user needs and functional test requirements, along with other design inputs such as FMEA and Failure Analysis
- Led sustaining projects for system design changes and authored verification test protocols and reports
- Experienced in complex system Design, Verification, Integration and Qualification
- Excellent electrical and mechanical hands on skills
- MS Office Software - Excel, Word, Project, Visio
- National Instruments LabVIEW, Python, TestStand, LabWindows CVI, PXI, ANSI C, C#, Visual Basic, Visual Studio 60, Visual Studio 2011
- PCB and schematic design in Cadence, OrCAD and Eagle
- Circuit simulation in PSpice, Multisim, LTSpice
- Jira, Cognition Cockpit, Oracle, SharePoint, SVN, Redmine, Team Foundation Server, Reliasoft Synthesis
Additional Information
- IEC 60601 testing and design. and EMC testing and design Hands on building of electro-mechanical systems and assemblies Hands on soldering, rework, electrical prototyping Modeling parts, assemblies and creating drawings in SolidWorks Performing FEA simulations in Solidworks DMMs, oscilloscopes, spectrum analyzers, DAQs, signal generators, arbitrary waveform generators, dataloggers, network analyzers, source meters, programmable DC load, LCR meters Force, vibration, temperature and dynamic motor torque measurement Pneumatics - pistons, compressors, pressure accumulators, pressure transducers, flow meters, flow controllers, pressure controllers, flow bias valves, check valves DC and stepper motors, DC and stepper motor control circuitry, positional encoders, belts, gears. pulleys, bearings and linear slide rails HALT / HASS thermal testing Switch mode power supply design Automated test system design, integration and qualification System, hardware and software requirements FMEA (design, safety and process FMEA) Statistical analysis software - JMP and Minitab Six Sigma, ANOVA, Gage R&R, measurements system validation, process capability Interfacing with manufacturers, customers and vendors FDM 3D printing expert, rapid prototyping
Timeline
Senior Test Development Engineer
Inspire Medical
05.2023 - Current
Senior Hardware Engineer
Medtronic
01.2022 - Current
Principal Electrical Engineer
Medtronic
09.2019 - 09.2020
Test Engineer III
Nuvectra
11.2016 - 08.2019
Electrical Engineer II
Beckman Coulter Inc
01.2016 - 11.2016
Systems Engineer II
Beckman Coulter Inc
02.2014 - 01.2016
Systems Engineer
Beckman Coulter Inc
12.2011 - 02.2014
Hardware Test Engineer
CareFusion Plymouth
09.2008 - 03.2010
Hardware Test Engineer
GE Security
04.2007 - 04.2008
Electrical Engineer Intern
Dagan Corporation
09.2004 - 01.2007
Bachelor of Science - Electrical Engineering
University of Minnesota Twin Cities
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