摘要:
A system for processing a workpiece includes a plasma immersion ion implantation reactor with an enclosure having a side wall and a ceiling and defining a chamber, and a workpiece support pedestal within the chamber having a workpiece support surface facing the ceiling and defining a process region extending generally across the wafer support pedestal and confined laterally by the side wall and axially between the workpiece support pedestal and the ceiling. The enclosure has at least a first pair of openings at generally opposite sides of the process region, and a first hollow conduit outside the chamber having first and second ends connected to respective ones of the first pair of openings, so as to provide a first reentrant path extending through the conduit and across the process region. The reactor further includes a gas distribution apparatus on or near an interior surface of the reactor for introducing a process gas containing a first species to be ion implanted into a surface layer of the workpiece, and a first RF plasma source power applicator for generating a plasma in the chamber. The system further includes a second wafer processing apparatus and a wafer transfer apparatus for transferring the workpiece between the plasma immersion implantation rector and the second wafer processing apparatus.
摘要:
A method for ion implanting a species into a surface layer of a workpiece in a chamber includes placing the workpiece in a processing zone of the chamber bounded by a chamber side wall and a chamber ceiling facing said workpiece and between a pair of ports of the chamber near generally opposite sides to the processing zone and connected together by a conduit external of the chamber. The method further includes introducing into the chamber a process gas comprising the species to be implanted, and further generating from the process gas a plasma current and causing the plasma current to oscillate in a circulatory reentrant path comprising the conduit and the processing zone.
摘要:
A low temperature process for depositing a coating containing any of silicon, nitrogen, hydrogen or oxygen on a workpiece includes placing the workpiece in a reactor chamber facing a processing region of the chamber, introducing a process gas containing any of silicon, nitrogen, hydrogen or oxygen into the reactor chamber, generating a torroidal RF plasma current in a reentrant path through the processing region by applying RF plasma source power at an HF frequency on the order of about 10 MHz to a portion of a reentrant conduit external of the chamber and forming a portion of the reentrant path, applying RF plasma bias power at an LF frequency on the order of one or a few MHz to the workpiece, and maintaining the temperature of the workpiece under about 100 degrees C.
摘要:
A method for ion planting a species into a surface layer of a workpiece in a chamber, the method includes placing the workpiece in a processing zone of the chamber bounded by a chamber side wall and a chamber ceiling facing said workpiece and between a pair of ports of the chamber near generally opposite sides to the processing zone and connected together by a conduit external of the chamber. The method further includes introducing into the chamber a process gas comprising the species to be implanted, and further generating from the process gas a plasma current and causing the plasma current to oscillate in a circulatory reentrant path comprising the conduit and the processing zone.
摘要:
A method of fabricating a silicon-on-insulator structure having a silicon surface layer in a semiconductor workpiece, is carried out by maintaining the workpiece at an elevated temperature and producing an oxygen-containing plasma in the chamber while applying a bias to the workpiece and setting the bias to a level corresponding to an implant depth in the workpiece below the silicon surface layer to which oxygen atoms are to be implanted, whereby to form an oxygen-implanted layer in the workpiece having an oxygen concentration distribution generally centered at the implant depth and having a finite oxygen concentration in the silicon surface layer. The oxygen concentration in the silicon surface layer is then reduced to permit epitaxial silicon deposition.
摘要:
A method for implanting ions in a surface layer of a workpiece includes placing the workpiece on a workpiece support in a chamber with the surface layer being in facing relationship with a ceiling of the chamber, thereby defining a processing zone between the workpiece and the ceiling, and introducing into the chamber a process gas including the species to be implanted in the surface layer of the workpiece. The method includes generating from the process gas a plasma by capacitively coupling RF source power across the workpiece support and the ceiling or the sidewall from an RF source power generator. The method further includes applying an RF bias from an RF bias generator to the workpiece support.
摘要:
A plasma immersion ion implantation reactor for implanting a species into a workpiece includes an enclosure having a side wall and a ceiling defining a chamber, and a workpiece support pedestal within the chamber for supporting a workpiece having a surface layer into which the species are to be ion implanted, the workpiece support pedestal facing an interior surface of the ceiling so as to define therebetween a process region extending generally across the diameter of the wafer support pedestal. The reactor further comprises a source power applicator and an RF plasma source generator coupled to the source power applicator for inductively coupling RF source power into the chamber. A gas distribution apparatus furnishes process gas into the chamber, and a supply of process gas furnishes to the gas distribution apparatus a process gas containing the species. An RF bias generator is connected to the workpiece support pedestal and has an RF bias frequency for establishing an RF bias.