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Professional Summary:Hardware and firmware development for consumer electronic, medical device products.Hands on experience in designing Automatic Test Equipment for high volume production. Proficient in C, Assembly, Labview, VHDL.Strong hardware, software troubleshooting, debugging, testingPatents:1) Intelligent surgical foot pedal with low noise, low resistance vibration feedback (2004) - US patent # 66740302) Automated Bonding for Wireless Devices (2007) – US patent #02492863) Reliable Communication for Wireless Devices (2013) – US patent #89237684) Exclusive Pairing Technique for Bluetooth Compliant Medical Devices (2008) – US patent #8768251 5) Semi-Automatic Device Calibration (2014) – US patent #8635042 6) Power Management for Wireless Devices (2013) – US patent #96351527) Torque Limiting Screw Driver (2014) – US patent #92655518) System Apparatus and Method for Predicting Anterior Chamber Intraocular Pressure (file 9/30/2016)
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Sr. System EngineerDevicelab Inc.Anaheim, Ca, Us
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Sr. Electrical System EngineerDevicelab Inc. Jul 2021 - PresentTustin, Ca, UsI've been an Electrical Lead at DeviceLab since July,2021. My roles are to develop system specifications, architecture. Perform proof-of-concept (POC) design feasibility. I involve in components selection, evaluation. I wrote micro-controlller code, labview, lead electrical design activities to support POC of class 4 laser device for retinal laser treatment and Kinetic Assay devices.In 2023, I was assigned to manage technical groups to work on the existing laser, diagnostic device and Medical wireless footswitch projects.
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Sr. Electrical EngineerJohnson & Johnson Feb 2017 - Nov 2020New Brunswick, Nj, UsDesigned / Developed pressurized infusion and IOP management for feasibility purposes. The design goal was to provide balance flow and stability in patient's eye chamber during cataract removal. Worked in electronics design using ARM Cortex M4 microcontroller (Atmel SAM4S Xplained Pro Evaluation board) in conjunction with high speed A/D data collection. Wrote "C" code under Atmel Studio IDE to execute the algorithm. Five pending patents were submitted related to the design. -
Sr. Electrical EngineerAbbott Oct 2014 - Jan 2017Abbott Park, Illinois, UsI came back to Abbott Medical Optics as a permanent employee supporting the testing and development of cataract surgical systems. Abbott was acquired and became Johnson & Johnson since February 2017 -
Electronic Design ConsultantAbbott Jun 2013 - May 2014Abbott Park, Illinois, UsSupport the product sustaining, design, development of opthalmic equipments for use in cataract surgery. Resposibilities include products compliance testing, failure analysis, hardware/firmware design development of an IV Pole subsystem for use in cataract surgical equipment. The IV Pole provides IV fluid irrigation to patient’s eye during surgery. Tasks include schematic design of the DC motor controller board using Frescale 9S12 micro-controller. Wrote embedded “C” code using Codewarrior. Develop Labview test program to validate the design.
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Electronic Design ConsultantPro-Dex Jun 2013 - May 2014Irvine, Ca, UsDesign and develop the electronics for an intelligent surgical screw driver for use in neurosurgery. Responsibilities include design the schematic, PCB layout and develop torque limiting algorithm (patent pending) to stop the motor when the screw is fully seated on skull bone plate. The design utilizes TM4C123AH6PM microprocessor. The firmware code is written in “C” and developed under Code Composer Studio. -
Principle EngineerSt. Jude Medical Sep 2012 - Feb 2013St. Paul, Minnesota, UsWorked in R&D Atrial Fibrillation division to sustain a current design of Ablation Generators for use in diagnosing and curing abnormal heart beat. -
Sr Electrical EngineerAbbott Oct 1998 - Sep 2012Abbott Park, Illinois, UsInvolved in the design and development of surgical devices for use in cataract surgery. Hardware and firmware design and development of peripherals for use with the systems. The peripherals included various input devices such as intelligent wired/wireless foot pedals, remote controls, IV Pole. The designs utilized Freescale micro-controller such as 9S12, 9S08 series. Supported production with automatic test equipment. The test equipment design included electrical fixture design and test software coding using Labview and Visual C++. Wrote Requirements & Design specifications, validation protocol, test reports.Supported product reliability testing in designing test systems, planning, documentation and carried through HALT, FCC, EMI compliance testing.Sustained released products with hardware/firmware changes for new features implementation. Resolve CAPA’s through failure investigation, analysis, identification and resolution.
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Test Engineering SuppervisorAlps Electric 1989 - 1997Ota-Ku, Tokyo, JpManaged Test Engineering group to design and develop high volume production Automatic Test Equipment (ATE) for computer peripherals and automotive products. Designed various automatic test equipment for high volume production of keyboard, mouse, automotive power switches using embedded controllers. Wrote test software using “C”, Visual C++, Labview, 8751, Z8. Wrote multitasking software operates on OS/2 platform for air bag production. The software collects historical process data in the Suminet LAN network and save it in the data base.Designed hardware/firmware for an Apple compatible keyboard, namely, Southern Cross using Samsung KS88C0504 embedded controller. Designed USB hub board and developed firmware in assembly language for Compaq computer system. The product consists of an upstream, three downstream ports, user buttons interface for multimedia control. The product utilized Intel 80930H hub controller. -
Electronic EngineerInternational Voice Products 1987 - 1989Designed voice-activated modules for use with cellular phones. Designed various front-end interface boards, wrote firmware for interfaces and voice recognition algorithm using Z8, 8031.
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Electronic EngineerOptical Radiation Corporation 1985 - 1987Designed single board computer using Intel 8085 to perform D/A, A/D and I/O functions for automatic UV exposure machines for use in manufacturing of printed circuit board. Wrote 8085 assembly, PLC ladder program to perform data acquisition and process control of the machines. Involved in the design and development of medical equipment used to measure the contour of human eye. Main responsibilities were to design the PCB of IBM compatible plug-in card, analog signal conditioning boards for the product. Designed and developed an automated eyeglass cutting machine. Main tasks were designing a servo controller board to control the cutting process.
Dung Ma Skills
Dung Ma Education Details
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Penn State UniversityElectrical And Electronics Engineering -
Butler County Community College, El Dorado KsElectrical And Electronics Engineering
Frequently Asked Questions about Dung Ma
What company does Dung Ma work for?
Dung Ma works for Devicelab Inc.
What is Dung Ma's role at the current company?
Dung Ma's current role is Sr. System Engineer.
What is Dung Ma's email address?
Dung Ma's email address is dm****@****jnj.com
What schools did Dung Ma attend?
Dung Ma attended Penn State University, Butler County Community College, El Dorado Ks.
What skills is Dung Ma known for?
Dung Ma has skills like Electronics, Embedded Systems, Medical Devices, Testing, Debugging, Troubleshooting, R&d, Manufacturing, Design Control, Electricians, Hardware, Plc.
Who are Dung Ma's colleagues?
Dung Ma's colleagues are Scot St. George, Donald Kannenberg, Barbara Favreau, Thomas Logan, Bob Gibb, Khoi Turner.
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