⚠ DEMO PROTOTYPE — Cannon Ops. Not the live site.
Whitewater.Engineering
Engineering Consultant — Steve Marquis

Converting dreams
into reality.

Medical, aerospace, commercial. If it's hard, if it's never been done, if others say it can't reasonably be done — that's where we start. PCB design from DC to light, with full-stack hardware judgement to back it up.

Established expertise in printed circuit board design, signal integrity, and high-rigor electronics (425) 698-7084 Start a conversation →
Approach

Broad spectrum cures
for the toughest cases.

We thrive in the difficult, and we find the hidden path to make the unreasonable doable and the unfeasible a practical commercial reality. Besides ninja and nunchuck skills, at Whitewater we can do these too.

Extreme power demands got you down? 10 lbs to be stuffed into that 1 lb can? Two layers to do the job best accomplished in six? We have you covered.

Military rigor, commercial viability, and medical compliance — all spoken here. Comfortable with SPICE to scopes and extreme soldering challenges. Logic analyzers to lathes and end mills.

Got you covered.

PCBs via
Altium PADS Allegro Orcad
Capabilities

Whitewater Engineering brings solutions to:

From the high-frequency end of digital to the quiet end of analog — and the full mechanical and packaging story that makes either one work in the real world.

01

High Speed Digital

Multi-gigabit signaling, controlled impedance, careful return paths and termination — get it right the first board.

02

Analog Signal Handling

Sensor front ends, instrumentation, and acquisition where every microvolt and femtosecond actually counts.

03

FPGA / PAL

Architecture, timing, and integration with hardware. Pin planning that respects PCB constraints.

04

Signal Integrity

Pre- and post-layout SI work, eye diagrams, crosstalk budgets, decoupling that makes layouts forgiving.

05

EMI Compliance

Designs that pass the chamber the first time — through layout discipline, shielding strategy, and filtering, not luck.

06

Battery & Supercap

Leading edge battery and supercap design — power budgeting, charge architecture, safety, and shelf life that actually holds up.

07

Extreme Low Power

Microamp budgets that survive long deployment. Low-noise switcher and LDO design done ridiculously well.

08

Wire Bonding & Substrates

Wire bonding to ethereal thin substrates. Difficult packaging, layout, and process challenges resolved on the bench.

09

Flex Circuits & IoT

Flexible circuits and connected devices — full RF, power, and mechanical co-design for products that have to last.

Previous Work

Examples from the bench.

All graphics from public-domain printed circuit board projects Steve Marquis personally and significantly contributed to.

01

Smart Card with Touch Screen, BT, NFC, Chip, Dual Mag Stripe, Wireless Charge

Internals of the first smart card with all of the above — in ISO form. Marketing had a field day with the dramatization; the engineering had to make every cubic millimeter pull double duty.

Embedded · RF · Power
02

SW-Defined Ultrasound Front End

Chief architect and designer. Differential low-noise analog ADCs, gigabit differential isolated data-links — the front end where the medical image actually starts.

Medical · Analog · High Speed
03

Color Flow Processing in Custom ASIC

Color-flow processing implemented in a custom ASIC. Multiple patents issued.

ASIC · Patents
04

Mechanical Design of Pin Probing of Live Circuits

Mechanical and electrical design of pin probing on live circuits. Patents issued.

Mechanical · Test · Patents
05

Statistical Multiplexer — 2000:1 Real-Time Events Over 1 Fiber

Unique statistical multiplexer enabling 2000:1 multiplexing of real-time events over a single fiber. The kind of project where the algorithm and the hardware have to agree on physics.

Comms · Algorithms · Optical
Contact

Ready to try something really tough?

Better yet, let's visit in person. We love our customers.

Email Steve directly:

Steve.Marquis@WhitewaterEngineering.co

Or call (425) 698-7084 — by appointment Mon–Sat.

Address
22384 Kodiak Rd
Gallatin, MO 64640
United States
Hours
Mon – Fri: By appointment
Sat: By appointment
Sun: Closed
Resume
Resume available on request