Abstract:
Apparatus for chemically etching a workpiece includes a chamber for receiving a process gas and having a pumping port for extracting exhaust gases, and a workpiece support located in the chamber upstream of the pumping port. The chamber further includes a sub-chamber located upstream of the pumping port and downstream of the workpiece support, and the sub-chamber includes a window and an excitation source, adjacent the window, for creating a plasma in a sample of the exhaust gases to create an optical emission which can be monitored through the window.
Abstract:
This invention relates to a method of depositing an inorganic SiO2 film at temperatures below 250° C. using plasma enhanced chemical vapour deposition (PECVD) in a chamber including supplying tetraethylorthosilicate (TEOS) and O2, or a source thereof, as precursors, with an O2/TEOS ratio of between 15:1 and 25:1.
Abstract:
A method induces plasma vapour deposition of metal into a recess in a workpiece. The method achieves re-sputtering of the metal at the base of the recess with a sputter gas by utilising a mixture of Ar and He and/or Ne as the sputter gas with a ratio of He and/or Ne:Ar of at least about 10:1.
Abstract:
This invention relates an ion beam source (10) for use with a non-electrical conducting target (14) including a grid (13) for extracting ions and a power supply for supplying pass power to the grid (13) to extract the ions.
Abstract:
A gas delivery device is for use in low pressure Atomic Layer Deposition at a substrate location. The device includes a first generally elongate injector for supplying process gas to a process zone, a first exhaust zone circumjacent the process zone, and a further injector circumjacent the first exhaust gas for supplying purge or inert gas at an outlet surrounding the process zone having a wall for facing the location circumjacent the outlet to define at least a partial gas seal.
Abstract:
This invention relates an ion beam source (10) for use with a non-electrical conducting target (14) including a grid (13) for extracting ions and a power supply for supplying pass power to the grid (13) to extract the ions.
Abstract:
A method is for plasma etching elongate features in a generally planar workpiece of a type located in a chamber. The method includes etching a test workpiece in a flat configuration in the chamber, determining the respective angle of a longitudinal portion of the features relative to an axis passing orthogonally through the workpiece, and determining the curvature of the workpiece, which would have been required to reduce the angles, at least over a central portion of the workpiece, substantially to 0°. The method further includes processing a further workpiece of the same type whilst it is curved with the determined curvature.