Electrical properties of thin-film resistors in a wide temperature range. Issue 3 (3rd August 2015)

• Record Type: Journal Article
• Authors: Winiarski, Paweł; Kłossowicz, Adam; Wróblewski, Jacek; Dziedzic, Andrzej; Stęplewski, Wojciech
• Editors: Agata Skwarek, Dr
• Is Part Of: Circuit world. Volume 41:Issue 3(2015)
• Page Start: 116
• Page End: 120
• Publication Date: 2015-08-03
• Subjects: Printed circuit board -- Thin-film resistor -- Cryogenic temperature -- Nickel-phosphorus (Ni-P) alloy; Electronic circuits -- Design and construction -- Periodicals; Electronic circuits -- Periodicals; 621.381505
• DOI: 10.1108/CW-03-2015-0010
• Languages: English
• ISSNs: 0305-6120

Abstract

Abstract : Purpose: – The purpose of this paper is to characterize electrical properties of nickel-phosphorus (Ni-P) thin-film resistors made on FR-4 laminate in a wide range of temperature (from −180 to 20°C). Design/methodology/approach: – The study was performed using resistors made of Ni-P foil with two different thicknesses (0.1 or 0.05 μm) and sheet resistances (100 or 250 Ω/sq), respectively. The resistance rectangular resistors had length and width from the range between 0.59 and 5.91 mm. The resistance versus temperature characteristics and their distribution as well as resistors ' durability to low-temperature thermal shocks were investigated. Findings: – The results showed almost linear temperature dependence of resistance with a negative temperature coefficient of resistance of about −95 ppm/°C for 250 Ω/sq layer and −55 ppm/°C for 100 Ω/sq layer. A very small dimensional effect was observed for sheet resistance as well as for R(T) characteristic. Thin-film resistors are also characterized by very high durability to low-temperature thermal shocks. Originality/value: – The results presented in this paper can be very useful for low-temperature applications of thin-film resistors made on printed circuit boards. They suggest possibility of wide applications of these components in a wide temperature range.