The objective and motivation for this project is to design a low-power, low-noise oven-control circuit to optimize the stability of a MEMS oscillator. MEMS oscillators can be fabricated using conventional semiconductor manufacturing methods and can often be assembled in packages smaller than those of traditional crystal oscillators. However, one of their largest disadvantages currently is their high temperature coefficient of frequency (TCF), causing MEMS oscillators to be especially sensitive to temperature changes. Hence, this project focuses on designing a printed circuit board that will allow the user to manually tune a current passing through a resonator wire-bonded to the board to elevate the resonator temperature. This will ensure that the device's resonance frequency stays largely constant and that the oscillator provides a very stable signal.
Bachelor of Science in Electrical Engineering (B.S.E.E.)
College of Engineering and Computer Science
Hofstee, Heather, "Analog Temperature Control Circuit for a Thin-Film Piezoelectric-on-Substrate Microelectromechanical Systems Oscillator" (2018). Honors Undergraduate Theses. 419.