Image de profil de StuartBorden
Membre depuis le 22 septembre 2016
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I have experience in mechanical design, electrical engineering, software development, real-time control, analytical instrument design, semiconductor chemical process equipment design, embedded design, Electronics design and PCB artwork from Spartan 3A, ARTIX-7, TMS320C6745/C28346, PIC8~32bit, 1-8 layer PCBs. High-efficiency SEPIC, Flyback, Buck, Buck-boost power design 5 ~ 150W, Isolated DC/DC 96% efficiency USB power system designs. Stand-alone, multi-output DC/DC converter module design. . Recent designs include on-line fruit-sorting analyzers, modular conveyor control. 8K Linescan POCL 80klps, 18-bit DCDS spectrometer system, portable pesticide analyzer, soil analyzer, USB 2.0 w/power isolator, TMS320C28346 control card w/4-26 VIN and test jig and usb-isolated programmer/debugger tool. Instruments and control systems also include Windows GUI applications using Borland/Embarcadero C++. . 5 patents in various disciplines (Korean), 5 scientific journal entries (Korean journals)
$30 USD/hr
6 commentaires
  • 90%Travaux complétés
  • 100%Selon le budget
  • 100%Dans les temps
  • 13%Taux de Réembauche


Avis récents

  • image de Don K. Project for StuartBorden $25.00 USD

    “not gone well”

  • image de lofbele1 Arduino electrical/PCB design $250.00 USD

    “Very professional and knowledgeable. Definately will hite again.”

  • image de daromer Battery monitoring circuit on DS2438 £150.00 GBP

    “Top notch experience and easy to talk and get the best result with”

  • image de Gene Carlo D. Figure out how to turn on my Laptop motherboard (schematic included) $10.00 USD

    “He knows his stuff (i.e. he knows what he's doing, unlike others). My project would have ended in disaster if he was not around. Thanks for your help! :) I highly recommend this freelancer. I'm sure I'll approach him if I have other projects like this.”

  • image de or682 ic parts values design assistance $15.00 USD

    “Stuart made a good job and have good knowledge in dc-dc”

  • image de BruceRichard PCB Redesign - mSATA dual adaptor to USB £450.00 GBP

    “Stuart placed an offer on my project like few others, but unlike most, he gave me a realistic picture of the upcoming costs and a better understanding of the expected bumps in the road ahead, plus a clear vision of how and when the job will get done. We set the deadline of 10 days for the first job and he was on it from the first second. Not a question left unanswered or an issue of concern unaddressed before and during the work. I found him available online almost all the time even with a big time difference between our locations, which certainly is a great help. Moreover, and on the top of his expertise in electronics and PCB design, Stuart has a great understanding of the business side of the story, and that is a huge advantage. Having no proper knowledge of electronics and PCB design, I started to get a bit worried at first when sometimes conversations seemed too technical for me, but he was explaining terms in plain English and I learnt a lot from him. He delivered a great looking design on-time and he provided (and still providing) amazing level support in every aspects. With Stuart, you would have an experienced, knowledgeable expert on your side and I am glad to highly recommend him. And I am looking forward to work with him again on my other projects.”


Director of Technology and Development

Oct 2005

Developed EARA covert fuel analyzer (patent), Delphi non-destructive fruit-sorting system (patent), table-top multi-cell NIR analyzers, elevator emergency auto-dialing system (patent), covert fuel-volume measurement system (patent), conveyor controller system, 8K linescan camera, pesticide analyzer, soil component analyzer , DC/DC power modules, USB isolator, TMS control card and development system. Piezo-electric high-resolution water mains meter (patent). Others

Director of Engineering

Jul 2002 - Oct 2005 (3 years)

Led re-design of HN-1100 NIR analyzer. Developed HN-2200 NIR analyzer, Solomon non-destructive fruit-sorting system, portable non-destructive fruit sugar analyzers, prototypes for non -invasive blood glucose analyzers based on NIR technology, later in support of Olympus research team for same effort.

R & D Department Manager

Apr 1998 - Jul 2002 (4 years)

Ran the R&D department, producing prototypes for RFGDS analyzers, HC-OES liquid analyzers. Also designed prototypes for custom systems for Quadrupole Mass spectrometers for Kyoungnam university, Seoul university and Korea Atomic Energy Research Institute. Developed a line of Semiconductor Chemical distribution systems that never went public after the financial crisis in Korea.

Korean Branch Installations Manager

Apr 1996 - Mar 1998 (1 year)

Localized the installation of chemical handling systems. Designed layouts and order requirements for reprocessing and distribution for Hyundai fabs 6, 7 & R&D1. Also Anam Semiconductor slurry reprocessing system. Coordinated installation of CMP and post-CMP cleaning equipment at Sumsung Fab 4. Coordinated with customer and local contractors for on-schedule startups and qualifications until branch was closed.

Korean Regional Service Manager

Jul 1995 - Mar 1996 (8 months)

Led the installation, qualification and maintenance of chemical reprocessing and delivery systems at Hyundai Fabs 4, 5.

Special Field Service Agent

Jan 1993 - Jun 1995 (2 years)

Special field service troubleshooter and site-support after company re-structuring. Re-designed slurry delivery system and handling systems in conjunction with Samsung Electronics in the field for multi-slurry applications.

Engineering Manager

Sep 1991 - Dec 1992 (1 year)

Ran engineering department (4 engineers) during downsize. Led development of Sulfuric Acid concentrator system from the RD stage into production. Redesigned flagship Piranha chemical reprocessing system for export and IBM/Intel safety specs.

Control Systems Engineer

Oct 1990 - Aug 1991 (10 months)

Developed PC control system for on-line AA analyzer. Real-time control software (FLUKE-based) for on-line Chemical reprocessing system Design of peripheral chemical handling equipment, including schematics, mechanical, BOM, control system design and documentation


Oct 1988 - Sep 1990 (1 year)

General mechanical design and drafting, PLC and PC software development


Sep 1986 - Sep 1988 (2 years)

Developed PC-Link software over GPIB bus for real-time data acquisition and monitoring of chemical reprocessing system. CAD design and drafting.

Computer Lab Manager (night)

Mar 1985 - Sep 1987 (2 years)

General functions.


KOR1020060009838 분광 분석장치 SPECTRAL ANALYSIS APPARATUS (2006)

Korean Patent Office

Measurement methods and apparatus for NIR analyzer


Korean patent office

A DEVICE FOR MEASURING INTERNAL QUALITY OF OBJECT HAVING A FUNCTION OF REALTIME CORRECTION OF LIGHT SOURCE INTENSITY AND METHOD USING THE SAME Special real-time method for stabilizing the on-line measurements of material properties on conveyors

KOR1020080040468 엘리베이터 비상 통화 장치 및 그 비상 통화 방법 Elevator Emergency Communications Device and Method (2008)

Korean Patent office

Redundant system for stranded elevator passengers to call for help

KOR1020090110844 Water gauge having piezoelectric element (2010)

Korean Patent Office

Novel method for high-resolution water mains metering

KOR1020140095574 On-demand Measurement of Blood Glucose (2016)

Korean Patent Office

RFID powered on-demand insertable micro blood probe

KOR1020130141328 Quantitative analyzer of petrols (2015)

Korean Patent Office

Method and apparatus for covertly measuring volume of fuel dispensed by fuel pumps.


Investigation of Optimum Condition on the Modified Gas - Jet Boosted Glow Discharge Cell

Test results on our newly developed system.

Study for Cond. and Non-cond. Multi-layers Depth Profiling An. of RF Gas-jet Boosted GD Spectrometry

Development of methodologies for depth profiling using our system.

The Studies of Conductive and Non-Conductive Multi-Layer Depth Analysis by RF Gas-Jet Boosted GDAES

More tests on our developed system.

The Fund. Stud. and Dev. of the Modified See -Through HCGD Cell for AES Analysis

Revolutionary design of chamber and cell giave incredible performance.

Study on the dev. of new non-destructive measurement method using NIR spectroscopy on fresh eggs

A simple idea turned into a very interesting device. The freshness and quality of eggs can be measured with NIR spectroscopy on-line for every single egg.


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