Patent · US Expired

Process of forming holes in a photosensitive resin layer to produce cathodes with microtips

US5669800A · kind A · utility

9Cited by

3References

14Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Michel Ida · Saint-Égrève, FR
Brigitte Montmayeul

Key dates

Filing date	Sep 26, 1995
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Sep 26, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01J9/025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A process for the formation of holes in a photosensitive resin layer, which can be applied to the production of electron sources having emissive cathodes with microtips and flat display screens. According to this process, a resin layer is exposed through a monolayer of balls transparent to an exposure light, with each ball focussing the light onto the resin layer and in this way bringing about the exposure of an area of said resin layer so that the thus exposed resin layer is developed.

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