Patent ID: 6514559
Filing Date: 2003-02-04
Classification: H01J

Abstract:
A process for producing an electron source substrate having thereon plural electron-emitting elements, each element comprising a pair of element electrodes counterposed with a spacing, an electroconductive film placed in the spacing and connected to both of the electrodes, and an electron-emitting portion formed in the electroconductive film, wherein at least one liquid outlet is counterposed respectively to each of plural regions of the substrate, each region having plural sites for electroconductive film formation, and wherein the plural sites of each respective plural region include a first plurality of contiguous sites that are arranged along a first direction and a second plurality of contiguous sites that are arranged along a second direction that is not parallel to the first direction, the process comprising the steps of moving at least one of the substrate and the liquid outlets relatively to one another along the first direction, then along the second direction, and then along the first direction, and, during the steps of moving along at least the first direction applying a liquid including a metal element-containing solution onto the sites for electroconductive film formation arranged along that direction on the substrate, to from at least one electroconductive film,wherein said liquid is applied at least twice to each of the sites with an interval of more than 1.8 seconds.