摘要:
A method and apparatus for annealing semiconductor substrates is disclosed. The apparatus has an annealing energy source and a substrate support, with a shield member disposed between the annealing energy source and the substrate support. The shield member is a substantially flat member having a dimension larger than a substrate processed on the substrate support, with a window covering a central opening in the substantially flat member. The central opening has a gas inlet portal and a gas outlet portal, each in fluid communication with a gas inlet plenum and gas outlet plenum, respectively. A connection member is disposed around the central opening and holds the window over the central opening. Connection openings in the connection member are in fluid communication with the gas inlet plenum and gas outlet plenum, respectively, through a gas inlet conduit and a gas outlet conduit formed through the connection member.
摘要:
An apparatus is disclosed for magneto-thermal processing of substrates comprises a work surface for supporting a substrate for processing, a source of electromagnetic radiation that delivers an intense electromagnetic field to an area of a substrate disposed on the work surface, and a magnetic assembly that delivers a magnetic field to the area of the substrate. The intense electromagnetic field typically has an energy density of at least about 0.2 J/cm2 and a cross-sectional area typically not more than about 10 cm2. The magnetic field typically has a strength at least about 0.5 T and an area not more than about 10 cm2.
摘要翻译:公开了一种用于基板的磁热处理的装置,包括用于支撑用于处理的基板的工作表面,将电磁辐射源传送到设置在工作表面上的基板的区域的电磁辐射源,以及磁性组件, 向基板的区域传递磁场。 强电场通常具有至少约0.2J / cm 2的能量密度和通常不超过约10cm 2的横截面积。 磁场通常具有至少约0.5T的强度和不超过约10cm 2的面积。
摘要:
Apparatus and methods for combining beams of amplified radiation are disclosed. A beam combiner has a collimating optic positioned to receive a plurality of coherent radiation beams at a constant angle of incidence with respect to an optical axis of the collimating optic. The respective angles of incidence may also be different in some embodiments. The collimating optic has an optical property that collimates the beams. The optical property may be refractive or reflective, or a combination thereof. A collecting optic may also be provided to direct the plurality of beams to the collimating optic. The beam combiner may be used in a thermal processing apparatus to combine more than two beams of coherent amplified radiation, such as lasers, into a single beam.
摘要:
A laser that emits light at all available frequencies distributed throughout the spectral bandwidth or emission bandwidth of the laser in a single pulse or pulse train is disclosed. The laser is pumped or seeded with photons having frequencies distributed throughout the superunitary gain bandwidth of the gain medium. The source of photons is a frequency modulated photon source, and the frequency modulation is controlled to occur in one or more cycles timed to occur within a time scale for pulsing the laser.
摘要:
Embodiments of the present invention pertain to substrate processing equipment and methods incorporating light sources which provide independent control of light pulse duration, shape and repetition rate. Embodiments further provide rapid increases and decreases in intensity of illumination.
摘要:
Embodiments of the invention generally contemplate an apparatus and method for monitoring and controlling the temperature of a substrate during processing. One embodiment of the apparatus and method takes advantage of an infrared camera to obtain the temperature profile of multiple regions or the entire surface of the substrate and a system controller to calculate and coordinate in real time an optimized strategy for reducing any possible temperature non-uniformity found on the substrate during processing.
摘要:
A method and apparatus for targeting a beam of radiation is provided. A beam steering mirror and a beam capture mirror are movably disposed along an optical pathway. A controller moves the beam steering mirror and the beam capture mirror in an x-y plane, and rotates the mirrors, to target the beam to a target location on a surface, while keeping the optical path length substantially constant for all target locations on the surface. The surface is rotated by a rotational actuator to bring all target locations to positions accessible by the beam targeting optics. Imprecision in targeting and optical path length may be compensated by providing an actuated aperture at the beam entry point and/or a variable focus lens with an optical range finding detector, all in communication with the controller.
摘要:
A method and apparatus for forming a crystalline semiconductor layer on a substrate are provided. A semiconductor layer is formed by vapor deposition. A pulsed laser melt/recrystallization process is performed to convert the semiconductor layer to a crystalline layer. Laser, or other electromagnetic radiation, pulses are formed into a pulse train and uniformly distributed over a treatment zone, and successive neighboring treatment zones are exposed to the pulse train to progressively convert the deposited material to crystalline material.
摘要:
Embodiments of the present invention provide methods of solid phase recrystallization of thin film using a plurality of pulses of electromagnetic energy. In one embodiment, the methods of the present invention may be used to anneal an entire substrate surface or selected regions of a surface of a substrate by delivering a plurality of pluses of energy to a crystalline seed region or layer upon which an amorphous layer is deposited to recrystallize the amorphous layer so that it has the same grain structure and crystal orientation as that of the underlying crystalline seed region or layer.
摘要:
A method and apparatus are provided for treating a substrate. The substrate is positioned on a support in a thermal treatment chamber. Electromagnetic radiation is directed toward the substrate to anneal a portion of the substrate. Other electromagnetic radiation is directed toward the substrate to preheat a portion of the substrate. The preheating reduces thermal stresses at the boundary between the preheat region and the anneal region. Any number of anneal and preheat regions are contemplated, with varying shapes and temperature profiles, as needed for specific embodiments. Any convenient source of electromagnetic radiation may be used, such as lasers, heat lamps, white light lamps, or flash lamps.