Abstract:
Embodiments of the present disclosure generally relate to methods for forming a TFT having a metal oxide layer. The method may include forming a metal oxide layer and treating the metal oxide layer with a fluorine containing gas or plasma. The fluorine treatment of the metal oxide layer helps fill the oxygen vacancies in the metal oxide channel layer, leading to a more stable TFT and preventing a negative threshold voltage in the TFT.
Abstract:
The present invention generally relates to TFTs and methods for fabricating TFTs. For either back channel etch TFTs or for etch stop TFTs, multiple layers for the passivation layer or the etch stop layers permits a very dense capping layer to be formed over a less dense back channel protection layer. The capping layer can be sufficiently dense so that few pin holes are present and thus, hydrogen may not pass through to the semiconductor layer. As such, hydrogen containing precursors may be used for the capping layer deposition.
Abstract:
The present invention generally relates to a vertical CVD system having a processing chamber that is capable of processing multiple substrates. The multiple substrates are disposed on opposite sides of the processing source within the processing chamber, yet the processing environments are not isolated from each other. The processing source is a horizontally centered vertical plasma generator that permits multiple substrates to be processed simultaneously on either side of the plasma generator, yet independent of each other. The system is arranged as a twin system whereby two identical processing lines, each with their own processing chamber, are arranged adjacent to each other. Multiple robots are used to load and unload the substrates from the processing system. Each robot can access both processing lines within the system.
Abstract:
A vacuum processing apparatus for processing a substrate is described. The vacuum processing apparatus includes a vacuum chamber; at least two processing stations adjacent to the vacuum chamber and operationally coupled to the vacuum chamber, a surface of a substrate has different orientations when the substrate is treated in different processing stations and at least one of the processing stations comprises a linear source with a longitudinal axis, for treating the substrate; and a substrate support. The substrate support includes a support body for holding a substrate; and an actuator configured to move the support body from a non-vertical position around an axis in front of the processing station to a non-horizontal position.
Abstract:
A method for coating a substrate (100) with at least one cathode assembly (10) having three or more rotatable targets (20), the three or more rotatable targets each comprising a magnet assembly (25) positioned there within, is provided. The method includes: rotating the magnet assemblies (25) to a plurality of different angular positions with respect to a plane (22) perpendicularly extending from the substrate (100) to an axis (21) of the respective one of the three or more rotatable targets (20); and varying at least one of: a power provided to the three or more rotatable targets (20), a staying time of the magnet assemblies (25), and an angular velocity of the magnet assemblies (25), which is varied continuously, according to a function stored in a database or a memory.
Abstract:
The present invention generally relates to a method of manufacturing a TFT. The TFT has an active channel that comprises IGZO or zinc oxide. After the source and drain electrodes are formed, but before the passivation layers or etch stop layers are deposited thereover, the active channel is exposed to an N 2 O or O 2 plasma. The interface between the active channel and the passivation layers or etch stop layers are either altered or damaged during formation of the source and drain electrodes. The N 2 O or O 2 plasma alters and repairs the interface between the active channel and the passivation or etch stop layers.
Abstract:
Embodiments of the present invention relate to methods for depositing an amorphous film that may be suitable for using in a NIP photodiode in display applications. In one embodiment, the method includes providing a substrate into a deposition chamber, supplying a gas mixture having a hydrogen gas to silane gas ratio by volume greater than 4 into the deposition chamber, maintaining a pressure of the gas mixture at greater than about 1 Torr in the deposition chamber, and forming an amorphous silicon film on the substrate in the presence of the gas mixture, wherein the amorphous silicon film is configured to be an intrinsic-type layer in a photodiode sensor.
Abstract:
Embodiments of the disclosure generally provide methods of forming thin film transistor (TFT) device structure with good interface management between active layers of a metal electrode layer and/or source/drain electrode layers and a nearby insulating material so as to provide high electrical performance devices, or for other suitable display applications. In one embodiment, a thin film transistor structure includes a contact region formed between fluorine-doped source and drain regions disposed on a substrate, a gate insulating layer disposed on the contact region, and a metal electrode layer disposed on the gate insulator layer.
Abstract:
The present disclosure relates to a method for material deposition on a substrate, including moving a substrate (10) into a processing zone in a vacuum chamber having an array of at least three sputter cathodes (110, 120), wherein each of the at least three sputter cathodes (110, 120) provides a plasma zone (116, 126) in which a deposition material is supplied during operation of the at least three sputter cathodes (110, 120), and rotating the plasma zone (116, 126) only once around a respective rotational axis (118, 128) from a first rotational position (140, 140) to a second rotational position (144, 144), wherein each plasma zone (116, 126) is directed away from the processing zone in the first rotational position (140, 140), and wherein each plasma zone (116, 126) moves over the processing zone during rotating from the first rotational position (140, 140) to the second rotational position (144, 144).
Abstract:
The present invention generally relates to methods measuring pinhole determination. In one aspect, a method of measuring pinholes in a stack, such as a TFT stack, is provided. The method can include forming an active layer on a deposition surface of a substrate, forming a dielectric layer over the active layer, delivering an etchant to at least the dielectric layer, to etch both the dielectric layer and any pinholes formed therein and optically measuring the pinhole density of the etched dielectric layer using the active layer.