Abstract:
A method for manufacturing semiconductor integrated circuit device, wherein a thin oxide film which has a thickness not larger than 5 nm and essentially becomes the gate insulating film of a MOS transistor is formed on the main surface of a semiconductor wafer, at such an oxide film growing speed that the reproducibility of the formation of the oxide film and the uniformity of the thickness of the oxide film can be secured, by supplying an oxidizing speed containing water generated from hydrogen and oxygen through a catalytic action at a low concentration to the main surface of the semiconductor wafer or its vicinity.
Abstract:
An ion implantation system (100) for implanting ions into a workpiece (118) within a process chamber (122) further comprises a load lock chamber (136), and an isolation chamber (146) coupled to the process chamber with a pre-implant cooling environment defined therein. An isolation gate valve (150) selectively isolates the pre-implant environment from the process environment wherein the isolation chamber comprises a workpiece support (152) for supporting and cooling the workpiece. The isolation gate valve is the only access path for the workpiece to enter and exit the isolation chamber. A pressurized gas source (159) selectively pressurizes the pre-implant cooling environment to a pre-implant cooling pressure that is greater than the process pressure for expeditious cooling of the workpiece. A workpiece transfer arm (164) transfers the workpiece between the various chambers. A controller (166) controls the workpiece transfer arm and selectively cools the workpiece to a pre-implant cooling temperature in the isolation chamber at the pre-implant cooling pressure via a control of the isolation gate valve, pre-implant cooling workpiece support, and pressurized gas source.
Abstract:
The invention relates to a system (100) for magnetically shielding a charged particle lithography apparatus. The system comprises a first chamber, a second chamber (102) and a set of two coils (120a; 120b). The first chamber has walls comprising a magnetic shielding material, and, at least partially, encloses the charged particle lithography apparatus. The second chamber also has walls comprising a magnetic shielding material, and encloses the first chamber. The set of two coils is disposed in the second chamber on opposing sides of the first chamber. The two coils have a common axis.
Abstract:
A workpiece handling system (100) includes a process chamber (114) configured to support a workpiece for ion implantation, a first mask (172, 174, 176) stored outside the process chamber (114) in a mask station (170), and a robot system (106) configured to retrieve the first mask (172, 174, 176) from the mask station (170), and position the first mask upstream of the workpiece so the workpiece receives a first selective implant through the first mask. A method includes storing a first mask (172, 174, 176) outside a process chamber (114) in a mask station (170), retrieving the first mask from the mask station (170), position ing the first mask upstream of a workpiece positioned in the process chamber (114) for ion implantation, and performing a first selective implant through the first mask.
Abstract:
A charged particle beam system includes a main chamber, an exchange chamber, an x-y positioning stage housed in the main chamber, a substrate-supporting structure (13') supported by or provided by said stage and moveable in first and second perpendicular directions of travel between limits which define a field of travel; and a substrate handling device (141) housed inside the main chamber for loading and unloading a substrate into and out of the main chamber, the device comprising a bar (17) and a side member (18'), the substrate handling device configured to translate the bar along its longitudinal axis parallel to the first direction of travel and the side member extending laterally from the bar, parallel to the second direction, for supporting the substrate to one side of the bar. The substrate - supporting structure has a loading/unloading position (27) at a limit of travel along the first direction and a limit of travel along the second direction, wherein the substrate-supporting structure and the substrate handling device are positioned so that the substrate can be lifted up from and set down on the substrate-supporting structure when the substrate-supporting structure is in the loading/unloading position and when the side member is in a loading/unloading position. The substrate - supporting structure and/or a substrate supported by the substrate - supporting structure has a part which is closest to the limit of travel in the second direction and which defines a line (35') extending along the second direction which is the limit of extent of the part towards the limit of travel in the first direction, wherein the side member is shaped so that, when it is in its loading/unloading position lies, it does not cross the line, whereby the substrate- supporting structure is free to move in the second direction without the side member interfering with the substrate - supporting structure and/or a substrate.
Abstract:
The fluid delivery mechanism of the present disclosure provides a solution for use in a single axis of motion that allows the connection of one or more fluid flow paths over a wide range of temperatures into a vacuum environment. The mechanism does not employ flexible tubing that is prone to fatigue, especially at very low temperatures. In one embodiment, a tube is axially moved within a sealed piston to allow for fluid delivery. In a second embodiment, bellows are used to provide the required functionality. In another embodiment, it is possible to achieve movement in two or more axis of motion by utilizing two or more appropriateiy configured mechanisms.
Abstract:
Ростовой манипулятор вакуумной камеры предназначен для выращивания тонких пленок полупроводников методом молекулярно-пучковой эпитаксии. Манипулятор размещен в вакуумной камере, которая содержит корпус (1) и крышку (2). Манипулятор содержит штангу (3) с нагревателем (4) на нижнем конце, полый трубчатый элемент (5) и держатель (6) подложки (7). Штанга установлена внутри трубчатого элемента. Держатель подложки установлен с возможностью его захвата и освобождения в захватном механизме, включающем L-образные консоли (8). Горизонтальные элементы консолей выполнены с возможностью размещения на них держателя подложки. Вертикальные элементы консолей прикреплены верхними концами к диску (9) с центральным отверстием (10). Полый трубчатый элемент пропущен через центральное отверстие диска, к которому по контуру центрального отверстия прикреплена каретка (11), снабженная роликами (12), поджатыми к наружной поверхности трубчатого элемента. На внутренней поверхности крышки выполнены регулируемые по высоте упоры (13), а на наружной поверхности трубчатого элемента - переставные по высоте упоры (14). К нижнему концу трубчатого элемента прикреплен диск (15) с центральным отверстием (16) и отверстиями (17), выполненными по периферии. В центральное отверстие (16) пропущена штанга, а в отверстия (17) - вертикальные элементы консолей. Между диском (9) и диском (15) размещены упругие элементы (18). Манипулятор может быть использован в вакуумных камерах различных размеров.
Abstract:
Techniques for temperature-controlled ion implantation are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for temperature- controlled ion implantation. The apparatus may comprise a platen to hold a wafer in a single-wafer process chamber during ion implantation, the platen including: a wafer clamping mechanism to secure the wafer onto the platen and ' to provide a predetermined thermal contact between the wafer and the platen, and one or more heating elements to pre-heat and maintain the platen in a predetermined temperature range above room temperature. The apparatus may also comprise a post- cooling station to cool down the wafer after ion implantation. The apparatus may further comprise a wafer handling assembly to load the wafer onto the pre -heated platen and to remove the wafer from the platen to the post -cooling station.