Job Title: Quartz Crystal Resonator Design Engineer
Location: Middleton, WI
Employment Type: Full-Time
About Us
Precision Devices, a division of Wi2Wi inc. is a leading manufacturer of precision frequency control components serving telecommunications, aerospace, medical, military and industrial markets. Our team specializes in high-stability quartz crystal resonators and oscillators designed for demanding environments.
Position Summary
We are seeking a skilled Quartz Crystal Resonator Design Engineer to develop, model, and optimize quartz-based frequency control devices. This role involves hands-on design, simulation, and testing of resonators for performance, stability, and manufacturability.
Key Responsibilities
- Design AT-cut, SC-cut, and other quartz crystal resonators for specified frequency, temperature stability, and aging characteristics
- Perform equivalent circuit modeling (e.g., Butterworth–Van Dyke model) and simulation of resonator performance
- Collaborate with manufacturing to optimize crystal blank processing, electrode deposition, and mounting techniques
- Conduct testing and characterization including frequency response, Q-factor, ESR, and temperature coefficients
- Analyze vibration, shock, and environmental effects on resonator performance
- Support failure analysis and continuous improvement efforts
- Work with oscillator design teams to ensure proper integration of resonators into circuits
Required Qualifications
- Bachelor’s degree in electrical engineering, Physics, Materials Science, or related field.
- And/or 5 to 7 years of experience in quartz crystal resonator or frequency control device design
- Strong understanding of piezoelectric materials and resonator physics
- Experience with RF measurement tools (network analyzers, impedance analyzers)
- Familiarity with equivalent circuit models and simulation tools
- Ability to interpret and generate technical drawings and specifications
Preferred Qualifications
- Experience with SC-cut crystal design for high-stability applications
- Knowledge of crystal growth, cutting, lapping, and plating processes
- Familiarity with oscillator circuit design and phase noise considerations
- Experience in aerospace, defense, or telecom applications
- Exposure to environmental and reliability testing standards (MIL-STD, QPL)
Compensation & Benefits
- Health, dental, and vision insurance
- 401(k) with company match
- Vacation, holiday, and sick hours
Work Environment
- Combination of lab, office, and manufacturing floor
- Occasional travel to suppliers or customer sites
How to Apply
Submit your resume and a brief cover letter outlining your experience with quartz crystal or frequency control device design to:
Kathy Arnold
Wi2Wi H.R.
Phone: 1.608.203.0247
Kathy_a@wi2wi.com
