2012 - Present
Developed hardware and software for semiconductor manufacturing tools and automation.
Overhead transport system for semiconductor fabs:
- Motion controller and drive for hoist trolley with electric differential for turns
- LIDAR for obstacle avoidance
- Camera synchronized with motion for positioning trolley to station marks with QR code.
- E84 and smart tag interfaces to stations.
- Host server for managing track with multiple hoists as clients over WiFi.
2014 -Present
All software for systems using high-speed cameras and lasers to detect particle size and concentrations in fluid flow in real-time.
2001 - 2010
- End effectors for wafer handling robots
- High performance motion controls with flexible interfaces
- Self-centering edge grippers and flippers with controlled holding force, wafer location and cassette mapping sensors, and vortex air cushion
- Wafer Aligners
E Systems / BriteLab - Software & Hardware Engineer consultation
2012 - 2014
Developed automation and test hardware and software including linear actuator testing system that controls a pneumatic cylinder servo with load cell feedback loop.
Sunstream - Software & Hardware Engineer consultation
2013 - 2014
Developed hardware and software to allow operation of boatlifts over wifi via IOS and Android Apps. Included network discovery, encrypted user device registtrations purchased from dealers. Boatlift controller periodically uploads data to a server that maintains a database and sends push notifications to smartphones. Developed all the code for the server back and front ends including user registration, login, and data access. Phone app also serves as a means to get data to the server if the boatlift’s wifi has no internet access. Firmware updates are downloaded from the server by smartphones and uploaded to boatlifts when new versions are available. Also made a PC utlity for connecting to the devices and performing internal communication monitoring, diagnostics, and firmware transfers.
2012
Developed IOS app for pairing wines using info from xml database and humorous app for adding wine and other embellishments to photos with social media sharing.
2012 - 2014
Developed IOS Apps for control of their weatherization test houses over wifi and weatherization training.
Multimetrixs - Software & Hardware Engineer consultation
2001 - 2010
Worked primarily with scientists to transform lab experiments into marketable products.
- Multi-probe wafer scanning metrology system
- Extensive algorithms for frequency and time domain analysis
- 3D graphical representation of results
- Simulation modes for all hardware
- Benchtop controller for proprietary
- Resonance Sensor Technology with USB and touchscreen
- Thin film sensor for in-tool CMP process monitoring - Mixed signal design with DDS based excitation up to 500MHz and sense circuitry for low noise, 24bit, RF gain / phase analysis
1995 - 2001
Developed the firmware for 3 to 5 axis robot controller including the following:
- Path planning with optimized trajectories\
- Advanced controls with pole placement
- Proprietary language engine with batch scripting and TCL for user extensions
- Intelligent error handling with call trace and system snapshot
- Data types all inherited from base class with methods for streaming
- CANBUS communications to wrist controller
- Laser cassette mapping
- Builds for multiple operating systems
- Simulation modes for all hardware
- Windows data acquisition and controls analysis tools
In addition to developing software, I served in controls tuning, diagnosing system problems, metrology, customer engineering support, and on-site installations.
1993 - 1996
Consulted for a number of clients as an employee of Trust Automation. Consulted for Smart Machines for six months before becoming employee there. Was one of the key employees of Smart Machines when it was purchased by Brooks Automation.
Clients and Projects Included:
Conner Peripherals
Consulted on development of a new technology for hard drive servo track writers. An optical link through a window replaced a physical connection through a hole in the hard drive case to the read/write head. This allowed for servo tracks to be written outside of a clean room. Designed software and hardware to servo the read/write head on interference patterns generated from a reflective diffraction grating attached to the head. Communicated with laser positioner and track writer systems.
Sonic Sensors
Development of automotive airbag inflator inspection system for Morton International. System used EMAT ultrasonics to characterize the integrity of inflator welds. My responsibilities included the mechanical design of scanner and PC software with GUI in VB and API in C++ for all scan control and data analysis code.
LAM Research
Automation for process tool
Davis & Davis
Windows application to control 8-axis carpet tufting machine from HPGL designs.
JR Johanson
Redesigned the electronics and software for 3 types of machines that measure the mechanical properties of bulk solids.
Reisinger Engineering
1991 - 1993
Mechanical and electrical design of product, tooling, and automation