Temperature Stability Analysis of CMOS-SAW Devices by Embedded Heater Design

Onur Tigli, Mona E. Zaghloul

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The design, finite element (FE) modeling, and electrical characterization of an embedded heater in complementary metal-oxide-semiconductor (CMOS) are presented. The heater is used to analyze the temperature stability behavior of CMOS-surface acoustic wave (SAW) devices. The heater employs n-well layer of standard CMOS technology to provide high efficiency resistive heating without physically perturbing the SAW architectures and performances. A detailed 3-D model and FE investigation is laid out to characterize the heat, current, temperature, and thermal energy distributions within the substrate and the piezoelectric material of interest ZnO. Electrical characterization based on Wheatstone configuration is presented to analyze the temperature stability of the sputtered ZnO and the CMOS-SAW delay lines. A temperature coefficient of frequency of —48.815 ppm/°C for the fabricated SAW devices with operating frequency of 322.5 MHz is obtained. The experimental results show close agreement with the FE simulations. The results demonstrate that the embedded heater design can be used as a robust analytical tool to investigate temperature stability of CMOS-SAW devices and potentially be utilized as an on-chip element for chemical, biological, and temperature sensor applications.

Original languageEnglish (US)
Pages (from-to)705-713
Number of pages9
JournalIEEE Transactions on Device and Materials Reliability
Volume8
Issue number4
DOIs
StatePublished - 2008
Externally publishedYes

Fingerprint

Acoustic surface wave devices
Metals
Surface waves
Temperature
Acoustic waves
Piezoelectric materials
Electric delay lines
Temperature sensors
Thermal energy
Chemical elements
Oxide semiconductors
Heating
Substrates

Keywords

  • Complementary metal-oxide-semiconductor (CMOS)
  • FEM
  • heater
  • n-well
  • surface acoustic wave (SAW)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Safety, Risk, Reliability and Quality
  • Electrical and Electronic Engineering

Cite this

Temperature Stability Analysis of CMOS-SAW Devices by Embedded Heater Design. / Tigli, Onur; Zaghloul, Mona E.

In: IEEE Transactions on Device and Materials Reliability, Vol. 8, No. 4, 2008, p. 705-713.

Research output: Contribution to journalArticle

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