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

• Record Type: Journal Article
• Authors: Agata Skwarek, Dr; Winiarski, Paweł; Kłossowicz, Adam; Wróblewski, Jacek; Dziedzic, Andrzej; Stęplewski, Wojciech
• Is Part Of: Circuit world. Volume 41:Issue 3(2015)
• Page Start: 116
• Page End: 120
• Publication Date: 2015-08-03
• Subjects: 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> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec> <title content-type="abstract-heading">Purpose</title> <p> – 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). </p> </sec> <sec> <title content-type="abstract-heading">Design/methodology/approach</title> <p> – 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. </p> </sec> <sec> <title content-type="abstract-heading">Findings</title> <p> – 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 <italic>R(T)</italic> characteristic. Thin-film resistors are also characterized by very high durability to low-temperature thermal shocks. </p> </sec> <sec> <title content-type="abstract-heading">Originality/value</title> <p> – 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.</p> </sec> </abstract>