Screen-printing ink
AssigneeU.S. Philips Corporation
InventorFrancis Ortega
Life of this patent
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Abstract
The invention relates to a screen-printing ink for producing a resistor by firing in a neutral atmosphere, comprising a mixture of one or more metalhexaborides, a temporary binder and a glass as the permanent binder, the glass being an alkaline earth borate or silicoborate which comprises a quantity of not more than 5 mole % of one or more metal oxides chosen from vanadium, molybdenum, niobium, tungsten, manganese, iron, zirconium and tantalum.
Claims9
A screen-printing ink for producing a TCR modifier containing resistor by firing in a neutral atmosphere, said ink comprising a mixture of one or more metalhexaborides, a temporary binder and a glass as the permanent binder, characterized in that the glass is an alkaline earth metal borate consisting of an alkaline earth metal oxide and boron oxide or an alkaline earth metal silicoborate consisting of an alkaline earth metal oxide, boron oxide and silicon dioxide which glass is modified by a quantity of not more than 5 mole% of one or more metal oxides selected from the group consisting of oxides of vanadium, molybdenum, niobium, tungsten, manganese, iron, zirconium and tantalum.
Dependencies are inferred from the claim text.