480-835-5206 BSEE programmer C, C++, assembly

Bill Mothershead Mesa AZ ***** 480-***-**** ****.***********@*****.***

Will relocate for right opportunity.

Will travel for temp/contract jobs.

PROFILE: BSEE U.C. Berkeley software engineer/programmer

Engineering/scientific/system programming applications.

SKILLS: C, C++, assembly language,

functional specs, engineering design documents, milestone

management and written test plans, code reviews, operator manuals.

PROJECTS:

real time/embedded/firmware, communications,

industrial control systems/equipment,

robotics/motion control, machine vision/imaging systems.

Experience: (excludes some short consulting contracts)

consultant 2007-2009

C++ simulators, force analysis of rotating mechanical systems.

Wrote custom interactive design software with 2D animation.

Software does automated searches to optimize a configuration.

ALERT STAR, Tempe, AZ 2005

Contract, C++ embedded system for school bus safety.

TEKSCI, Tempe, AZ 2004

Contract to review C++ code for Honeywell weather RADAR.

ARISTOCRAT TECHNOLOGIES, Tucson, AZ/Las Vegas,2003-4

Embedded software for gambling equipment. Motion control.

Display drivers. Game creation (math) utilities.

SUPERIOR ELECTRONICS, Phoenix, AZ 2002

Rewrote A/D routines for probe system to handle ultra low

resistance readings for wafers with gold films.

YASKAWA/MOTOMAN, Phoenix, AZ 1998-2000

Wrote C++ software for robotic wafer handling and motion

control systems for semiconductor fab equipment. Developed

compiler neutral libraries for: customer fab equipment, demos,

trade shows, endurance trials, and animated robot simulations

for throughput analysis. Traveled extensively, consulting with

customers about system requirements and programming at the

customer's site using their prototype equipment.

SUPERIOR ELECTRONICS, Phoenix, AZ 1997

Wrote C++/Win95 version of four point probe system

(semiconductor test equipment.) Extensive and ambitious

rewrite of MSDOS version I developed several years earlier

(see below.) Created online documentation using WinHelp compiler

and wrote an illustrated, full color, operator's manual.

Customized the standard version to Motorola specifications and

help install and test the equipment in their fab.

ADFlex, Chandler, AZ 1995-1996

Wrote C++ software for controlling laser milling machines

(real time motion control in a manufacturing environment).

Controlled traditional XY table or linear motor with flying

optics monitoring process accuracy and operator safety. In

support of a galvo-motor laser system (moving mirrors), wrote

a compiler that converted G-code (cut path) into laser target

points, power levels and point dwell times. Wrote real time

software (C++ and 486 assembly) to directly drive the D/A

hardware for the galvo-mirrors and the laser power levels.

Wrote software to directly access an inexpensive frame grabber

to capture images for fiducial recognition and developed a

fast algorithm that was glare and shading independent.

Wrote software that after finding three fiducials it will do

an XY/theta-rotation adjustment to the cut path target points.

SUPERIOR ELECTRONICS, Phoenix, AZ 1993-1994

Wrote C++ software for a control system/operator interface

for a four point probe (semiconductor test equipment).

This GUI (under MSDOS) directly drove the VESA VGA card.

Project required reverse engineering effort to develop a

working software interface to the undocumented hardware.

Developed algorithms to convert raw hardware readings into

industry standard measurement units. Developed a report

generator that included an interactive 3D (tilt/rotate)

false color topology map of resistance on the wafer. Wrote

online documentation and operator's manual. Wrote setup and

diagnostic programs for manufacturing/repair of hardware.

TEKNOW, Phoenix, AZ 1992-1993

Wrote C++ front-end communications processor (transaction

processor) that controlled up to 24 modems accepting raw

paging information, validated user ID etc. then sent the

transactions to the UNIX system controlling the transmission

equipment. Developed library to allow MSDOS C++ programs to

do nonpreemptive multitasking (used setjmp/longjmp.) Used

Greenleaf communications libraries and PharLap DOS extender.

MAPS FOR REALTORS, 1991-1992

Wrote C++ applications to provide city street maps used by

realtors as sales tools. Developed algorithm to convert

common street addresses into map coordinates, required

building an extensive database of city/street information.

Wrote MSDOS driver libraries to directly control several

brands of printers in their native graphical mode.

Contract Programmer, 1990

Wrote C++ communications front-end processor which controlled

eight modems (phone lines) each talking to a point-of-sale

device (little gray box that accepts credit card transactions.)

The program validated communications issues (format and

checksums)...then posted the data to the banking computer

and then confirmed the posting to the POS device (so it could

be deleted.)

ASM EPITAXY (ASM AMERICA), Tempe, AZ 1987-1990

Wrote real time embedded control systems for a semiconductor

CVD reactor. Developed windows-like GUI for this embedded

process control computer that used color graphics touchscreen

in a cleanroom environment. Wrote code to control a large

complex gas panel, all wafer handling including cassette

scanning and dynamically controlling Foxborro temperature

controllers. Wrote recipe editors/interpreters. Wrote

code for SECS communications. Wrote diagnostic programs

and generally supported manufacturing and field service

troubleshooting various software/hardware issues. Wrote

an operators manual which became a chapter in the equipment

manual. Was the lead programmer on this project and usually

organized and lead weekly informal design review meetings

that included semiconductor process people and field service

and manufacturing.

SPACE DATA, Tempe, AZ 1986-1987

Wrote ground test software for a minuteman missile project

that exercised a package of experiments to confirm/diagnose

their readiness before launch. Also wrote software to control

motion and monitor telemetry from two large gimbals flown

aboard the space shuttle. Work done in DEC assembly language.

GTX CORP., Phoenix, AZ 1985

Developed algorithms for pattern/character recognition for

vectorizing scanned images for input to CAD equipment.

MOTOROLA FOUR PHASE, Tempe, AZ 1981-1984

Developed OS9 operating system extensions using 6809 assembly

language. Wrote system utilities in C for Unix or OS9.

Developed code generator and support libraries for OS9's

Basic compiler.

SPERRY FLIGHT SYSTEMS, Phoenix, AZ 1981

Wrote/tested/documented software to control a RADAR scan

converter that was used aboard the B52. Work was done in

assembly language for a proprietary processor.

ENGINEERS TESTING LABORATORIES, Phoenix, AZ 1980

Wrote their accounting system on a small Wang as a consultant

1975-1978. Ported this software to a Wang mainframe.

MOTOROLA MICROSYSTEMS, Tempe, AZ 1978-1980

Wrote world's first commercially available 68000 software:

the ROM debugger for the 68000 evaluation board.

Wrote 68000 simulator in FORTRAN on IBM mainframe.

Answered "hot line" for technical support of microprocessor

development systems. pjf

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