Metal powder for electrically conductive paste and...

Details Metal powder for electrically conductive paste and... Metal powder for electrically conductive paste and...

2006-01-27

2009-11-17

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

C252S512000

Reexamination Certificate

active

07618475

ABSTRACT:
A metal powder for a conductive paste has an average particle diameter D50 not greater than 5 μm and an X value defined by equation (1) not greater than 0.5:in-line-formulae description="In-line Formulae" end="lead"?Xvalue=D50 (μm)/BET specific surface area (m2/g)  (1)in-line-formulae description="In-line Formulae" end="tail"?The metal powder for a conductive paste is particularly preferable when wart-like projections of a diameter not greater than 150 nm are present on the particle surfaces. Typical types of the metal powder include Cu, Ag, Au, Pd, Pt, Ni, Al and alloys thereof. The metal powder for a conductive paste enables fabrication of a conductor having a low void ratio after the paste is fired.

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