Method for producing multichannel plates

US4563250A · kind A · utility

Assignee

• Kernforschungszentrum Karlsruhe GmbH · DE

Inventors

• Erwin Becker · Karlsruhe, DE
• Wolfgang Ehrfeld · Karlsruhe, DE

Key dates

• Filing date: Mar 6, 1985
• Grant date: Jan 7, 1986
• Expiry date: Mar 6, 2005

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J2201/32
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method for producing a multichannel plate containing a plurality of generally parallel channels for use in structures for amplifying or converting optical images or other two-dimensional signal patterns by secondary electron multiplication, which method includes: PA0 producing a positive mold of the plate, by the steps of: (i) providing a body having the external shape of the plate to be produced and made of a material whose ability to be removed from the body is altered by exposure to a selected radiation; (ii) irradiating the body with the selected radiation in a pattern corresponding to the plate to be produced and in a manner to render the portions of the body corresponding to the channels more easily removable than the remaining portions of the body; and (iii) removing the more easily removable portions of the body; PA0 forming a metal negative mold, by the steps of: (i) attaching the positive mold to a metal electrode; (ii) electrolytically depositing metal on the electrode and in the openings created in the positive mold by said step of removing more easily removable portions; and (iii) removing the positive mold from the deposited metal; and PA0 forming the multichannel p…