Patent ID: 6773084
Filing Date: 2004-08-10
Classification: B23K,B41J,H05K

Abstract:
A print chip for a printhead functioning according to ink-jet principles, comprising:at least two substrates formed exclusively from monocrystalline silicon lying one on the other defining at least one recess which forms a medium chamber, a deflectable diaphragm which forms a wall of the medium chamber, and a feeding duct opening into the medium chamber for feeding a liquid medium which is to be squirted out hot and a squirting-out opening connected to the medium chamber; the feeding duct and a connecting duct that connects the squirting-out opening of the medium chamber, at 45Â° with respect to a second crystal plane perpendicular to a crystal plane of the silicon, the medium chamber being at 45Â° with a second crystal plane which is perpendicular to the crystal plane of the silicon; the feeding duct and the connecting duct being perpendicular to the second crystal plane; and the respective crystal planes of the adjoining surfaces of the two substrates corresponding respectively to the crystal plane of the silicon.