Patent · US Expired

Coating solder metal particles with a charge director medium

US7413771B2 · kind B2 · utility

6Cited by
24References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 9, 2004
Grant dateAug 19, 2008
Priority date
Expiry dateApr 2, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2998
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method for preparing particles to retain a charge such that the particles are rendered electrostatically or electrokinetically mobile. The method involves coating the particles with a coating medium which facilitates attachment of a charge director material, and contacting the particles with the coating medium thereon with a charge director medium to impart a positive or negative charge thereto and thereby render the particles electrostatically or electrokinetically mobile. Electrostatically and electrokinetically mobile particles for use in an electrostatic or electrokinetic deposition process. The particles include a coating medium and a charge director on particle bodies.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.