Non-lead resistor composition

Details Non-lead resistor composition Non-lead resistor composition

2011-05-31

2011-05-31

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C423S022000, C423S181000

Reexamination Certificate

active

07951311

ABSTRACT:
A non-lead composition for use as a thick-film resistor paste in electronic applications. The composition comprises particles of Li2RuO3of diameter between 0.5 and 5 microns and a lead-free frit. The particles have had the lithium at or near primarily the surface of the particle at least partially exchanged for atoms of other metals.

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Kobayashi et al “Structure and charge/discharge characteristics of new layered oxides: Li1.8Ru0.6Fe0.6O3 and Li2IrO3”, Journal of Power Sources 68 686-691 (1997).
Kobayashi; Structure and Lithium Deintercalation of Li2-xRuO3; Solid State Ionics 82 (1995) 25˜31; Elsevier; New York.
Kim; Structural and Magnetic Properties of New Rocksalt-Related Compounds of Ruthenium Li2(M1/2Ru1/2)O3, M=Fe, Co, Ni; Journal of Alloys and Compounds 201 (1993) 85˜98; Elsevier-Sequoia; New York.
Written Opinion of the International Searching Authority in PCT/US2009/040786; Jul. 17, 2009.
Fukaya et al., Highly Reliable and Lead (Ph) Free Thick Film Resistor Paste System for Low Thermal Expansion LTCC Application, 1997 International Symposium on Microelectronics, 1997, pp. 65-71.
Hormadaly, 2002 International Symposium on Microelectronics, New Lead-Free Thick Film Resistors, IMAPS Symposia Proceedings, 2002, pp. 543-547.
James et al., Structure and Bonding in Lithium Ruthenate, Li2RuO3, Journal of Solid State Chemistry, 1988, vol. 74:287-294.
Fukaya et al., Highly Reliable and Lead (Ph) Free Thick Film Resistor Paste System for Low Thermal Expansion LTCC Application, 1997 International Symposium on Microelectronics, 1997, pp. 65-71.
Hormadaly, 2002 International Symposium on Microelectronics, New Lead-Free Thick Film Resistors, IMAPS Symposia Proceedings, 2002, pp. 543-547.
James et al., Structure and Bonding in Lithium Ruthenate, Li2RuO3, Journal of Solid State Chemistry, 1988, vol. 74:287-294.
Kobayashi; Structure and Lithium Deintercalation of Li2-xRuO3; Solid State Ionics 82 (1995) 25˜31; Elsevier; New York.
Kim; Structural and Magnetic Properties of New Rocksalt-Related Compounds of Ruthenium Li2(M1/2Ru1/2)O3, M=Fe, Co, Ni; Journal of Alloys and Compounds 201 (1993) 85˜98; Elsevier-Sequoia; New York.
Written Opinion of the International Searching Authority in PCT/US2009/040786; Jul. 17, 2009.
Kobayashi et al, Structure and Charge/Discharge Characteristics of New Layered Oxides, Li1.8Ru0.6Fe0.6O3 and Li2LRO3, Journal of Power Sources 68, 1997, 686-691.
Feiner et al., The Magnetic Behavior of Li2MO3 (M=Mn, Ru and Ir) and Li2(Mn1-xRux)03, Condensed Matter 2001, 1-10 arXiv:COND-MAT/0111211, Nov. 12, 2007.
Felner et al., The Magnetic Behavior of Li2MO3 (M=Mn, Ru and Ir) and Li2(Mn1-xRux)03, Condensed Matter 2001, 1-10 arXiv:COND-MAT/0111211, Nov. 12, 2007.

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