Patent ID: 9097625
Filing Date: 2015-08-04
Classification: C23C,G01N,H01J,Y10T

Abstract:
1. A gas injection system for an energetic-beam instrument having a vacuum chamber; the vacuum chamber having at least one port; the port having a tilt angle; the gas injection system comprising: the gas injection system supporting at least one cartridge, each of the at least one cartridges containing a chemical source; the chemical source serving as a source for an output gas to be delivered into the vacuum chamber, each of the at least one cartridges comprising: a reservoir containing the chemical source, the chemical source rising to a fill line; the fill line having a level defined by an amount of the chemical source present in the reservoir at a given time, an output passage, an output valve coupled to the output passage; and, an outlet from the reservoir coupled to the output passage through the output valve; the outlet disposed in the reservoir at a level above the level of the fill line, and configured so that as the gas injection system is tilted to the tilt angle of the port, the outlet of each of the at least one cartridges remains above the level of the fill line, whereby the chemical source is prevented from entering the vacuum chamber while the output gas is being delivered; the gas injection system is configured to be removable and re-attachable to another port of a different tilt angle, whereby the chemical source is also prevented from entering the vacuum chamber while the output gas is being delivered.