We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Statistical Analysis of Thermal Treatment Effect of SMD Ni-RTD Batch Sensors and Its Direct Application Without Packaging for a Contact Thermometer.
- Authors
Chavez-Urbiola, I. R.; Sánchez-Fraga, R.; Mejia, I.; Leon-Gil, J. A.; Ponce-Hernández, J.; Velarde-Díaz, L. D.; Alcantar-Peña, Jesús J.
- Abstract
Thin-film resistive temperature detectors (RTD) are temperature sensors that can be installed on rigid or flexible substrates to meet a wide range of requirements. In this paper, we present a study on the performance of a clinical thermometer and its implementation. The statistical effects of thermal treatment on batch production are presented. Because of localized defects on the film, a non-uniform distribution exists before thermal treatment, which improves after thermal treatment. The data show that thermal treatment reduces the large variation in resistance for as-produced sensors. This annealing is done at 300°C under nitrogen atmosphere which reduces the standard deviation from 177 Ω to 13 Ω, a 5% of its initial value after being fabricated. This reliability increment is obtained due to the crystalline quality improvement which can be done only in the range of 100–300°C. In addition, the RTD sensor was designed with surface-mount technology in mind to avoid post-processing packaging and instead be used directly on a printed circuit board (PCB). A ratiometric circuit was designed to implement the RTD as a contact thermometer prototype; the developed circuit is flexible enough to use the produced RTD with a 5% deviation. The thermometer has an accuracy of 0.095°C in the temperature range of 30–50°C.
- Subjects
TREATMENT effectiveness; SURFACE mount technology; THERMAL analysis; MEDICAL thermometers; THERMOMETERS; DISTRIBUTION (Probability theory)
- Publication
Journal of Electronic Materials, 2022, Vol 51, Issue 4, p1481
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-022-09440-x