Lead-free resistive composition

Lead-free resistive composition

2 222232252 2322525 222A substantially lead-free thick-film resistor paste composition is disclosed including a resistor composition dispersed in an organic vehicle. The resistor composition includes (a) RuOconductive material; (b) an α-oxide selected from CuO, NaO, KO, LiO and combinations thereof...

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Hauptverfasser: Labranche, Marc H, Hang, Kenneth Warren, Walker, Alfred T, Ogata, Yuko
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Sprache:eng
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creator Labranche, Marc H
Hang, Kenneth Warren
Walker, Alfred T
Ogata, Yuko
description 2 222232252 2322525 222A substantially lead-free thick-film resistor paste composition is disclosed including a resistor composition dispersed in an organic vehicle. The resistor composition includes (a) RuOconductive material; (b) an α-oxide selected from CuO, NaO, KO, LiO and combinations thereof (c) a borosilicate glass composition having: (i) BO, (ii) SiO, (iii) a δ-oxide selected from BaO, CaO, ZnO, SrO, MgO and combinations thereof, and optionally including any of (iv) PO, (v) ZrOand (vi) AlO. The CuO α-oxide and TiO, TaO, NbOβ-oxide(s) and combinations thereof are present in the paste composition either separately, or in the borosilicate glass composition, or both. The NaO, KO, LiO α-oxide(s) and combinations thereof are present in the borosilicate glass composition. TCR values in the range of +/−100 ppm/° C. and R values of 100 ohms to 10 mega-ohms per square are obtained by resistors made from the paste composition.
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The resistor composition includes (a) RuOconductive material; (b) an α-oxide selected from CuO, NaO, KO, LiO and combinations thereof (c) a borosilicate glass composition having: (i) BO, (ii) SiO, (iii) a δ-oxide selected from BaO, CaO, ZnO, SrO, MgO and combinations thereof, and optionally including any of (iv) PO, (v) ZrOand (vi) AlO. The CuO α-oxide and TiO, TaO, NbOβ-oxide(s) and combinations thereof are present in the paste composition either separately, or in the borosilicate glass composition, or both. The NaO, KO, LiO α-oxide(s) and combinations thereof are present in the borosilicate glass composition. 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title Lead-free resistive composition
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