Patent ID: 6061074
Filing Date: 2000-05-09
Classification: B41J,H01J

Abstract:
An ion generator for the generation of a plasma which is manufactured by micromechanical processes, comprising:a) a first module having a dielectric plate with a first set of metal electrodes with an exposed surface upstanding from a first surface of the dielectric plate so that the electrodes form raised islands with trenches therebetween defined by the first surface being the floor of the trenches and sidewalls of the electrodes extending away from the first surface to the exposed surface of the conductive electrodes being the sides of the trenches;b) a second separate module having:i) a second set of conductive electrodes;ii) a spacer plate positioned between the first surface and the second set of conductive electrodes with open passages through the spacer plate over the first set of electrodes to form cavities for accommodating plasma, an end of the spacer plate facing the dielectric plate and having end portions in the trenches with end surfaces of the end portions, facing the dielectric plate, bonded to the first surface and sections of sidewalls of the open passages abutted against the sidewalls of the electrodes of the first set that extend away from the first surface; andc) a bonding agent between said end surfaces and said first surface at points isolated from the cavities by the juncture of the abutted sidewalls of the first electrodes and the sections of the sidewalls of the open passages to isolate the bonding agent from plasma in the cavities.