title: Nonlinearity characterization of temperature sensing systems for integrated circuit testing by intermodulation products monitoring.
abstract: This work presents an alternative characterization strategy to quantify the nonlinear behavior of temperature sensing systems. The proposed approach relies on measuring the temperature under thermal sinusoidal steady state and observing the intermodulation products that are generated within the sensing system itself due to its nonlinear temperature-output voltage characteristics. From such intermodulation products, second-order interception points can be calculated as a figure of merit of the measuring system nonlinear behavior. In this scenario, the present work first shows a theoretical analysis. Second, it reports the experimental results obtained with three thermal sensing techniques used in integrated circuits.
authors.affiliation: Electronic Engineering Department, Universitat Politècnica de Catalunya, C/ Jordi Girona 1-3. Campus Nord UPC, 08034 Barcelona, Spain. josep.altet@upc.edu
authors.forename: J
authors.initials: J
authors.lastname: Altet
authors.forename: D
authors.initials: D
authors.lastname: Mateo
authors.forename: X
authors.initials: X
authors.lastname: Perpiñà
authors.forename: S
authors.initials: S
authors.lastname: Grauby
authors.forename: S
authors.initials: S
authors.lastname: Dilhaire
authors.forename: X
authors.initials: X
authors.lastname: Jordà