WO2010035348A1 - 半導体製造装置 - Google Patents
半導体製造装置 Download PDFInfo
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- WO2010035348A1 WO2010035348A1 PCT/JP2008/067684 JP2008067684W WO2010035348A1 WO 2010035348 A1 WO2010035348 A1 WO 2010035348A1 JP 2008067684 W JP2008067684 W JP 2008067684W WO 2010035348 A1 WO2010035348 A1 WO 2010035348A1
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- manufacturing apparatus
- semiconductor manufacturing
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 65
- 239000004065 semiconductor Substances 0.000 title claims abstract description 64
- 230000003287 optical effect Effects 0.000 claims abstract description 88
- 238000009826 distribution Methods 0.000 claims description 31
- 238000005253 cladding Methods 0.000 claims description 15
- 230000001678 irradiating effect Effects 0.000 claims description 11
- 239000010408 film Substances 0.000 description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 25
- 229910052710 silicon Inorganic materials 0.000 description 25
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- 238000012986 modification Methods 0.000 description 20
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 14
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- 238000000034 method Methods 0.000 description 12
- 239000000758 substrate Substances 0.000 description 12
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/073—Shaping the laser spot
- B23K26/0732—Shaping the laser spot into a rectangular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02422—Non-crystalline insulating materials, e.g. glass, polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02675—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using laser beams
- H01L21/02678—Beam shaping, e.g. using a mask
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
Definitions
- the present invention relates to a semiconductor manufacturing apparatus for manufacturing a flat display such as a liquid crystal or an organic EL by changing a material property of an object by irradiation with a laser beam, and more particularly, amorphous silicon (
- the present invention relates to a semiconductor manufacturing apparatus suitable for a flat display manufacturing system in which a material property of a silicon film is changed by irradiating laser light to amorphous or polysilicon (polycrystalline).
- Recent display devices use liquid crystal elements as display elements.
- the liquid crystal element (pixel element) and the driver circuit of the liquid crystal element are constituted by a thin film transistor (TFT).
- TFT thin film transistor
- This TFT requires a process of modifying amorphous silicon formed on a glass substrate into polysilicon in the manufacturing process.
- “changing the material properties of the object” is called “modification”, and this modification is not limited to changing amorphous silicon to polysilicon, To change the physical properties of a substance.
- the silicon film is modified by laser irradiation.
- the silicon film modification step by laser irradiation is generally excimer laser annealing using an excimer laser.
- the silicon film is irradiated with a XeCl excimer laser having a wavelength of 307 nm and a pulse width of several tens of ns with a high light absorption rate.
- a polysilicon film is formed by injecting a relatively low energy of 160 mJ / cm 2 and heating the silicon film to the melting point all at once.
- the excimer laser has a large output of several hundred watts, can form a large linear laser spot with a length of one side or more of a rectangular mother glass, and the entire silicon film formed on the mother glass is efficiently integrated. It has the feature that it can be well modified.
- the silicon modification by the excimer laser has a field effect mobility of about 150 cm 2 / V ⁇ s, which is an index of TFT performance, because the crystal grain size of polysilicon, which strongly affects the TFT performance, is as small as 100 nm to 500 nm. Can be stopped.
- system-on-glass In recent years, in addition to image elements and driver circuits on flat displays, system-on-glass has been proposed and partially realized, which is equipped with high-performance circuits such as control circuits, interface circuits, and arithmetic circuits.
- This system-on-glass TFT is required to have high performance, and high-quality (large crystal grains) polysilicon modification is essential.
- the following patent document 1 is cited as a document describing a technique relating to this high-quality polysilicon modification. This patent document 1 describes silicon while continuously emitting light (CW) using a solid-state laser for semiconductor excitation as a light source.
- a high-quality amorphous silicon film having large crystal grains elongated in the scanning direction can be formed, or amorphous silicon is linearly formed (ribbon-shaped) in advance where high performance TFTs are required. ) Or island shape (island shape) to obtain a field effect mobility of 300 cm 2 / V ⁇ s or more, and to form a high-performance TFT.
- the power density of the laser spot formed by irradiation on the silicon film surface is relatively large and the spatial laser intensity distribution is uniform.
- the reason for this is that, in the modification process including the crystal of the silicon film, the energy required for modification within a short time (several tens to several tens of ⁇ s) before heat is transferred to the laminated film adjacent to the silicon film. This is because it is necessary to inject, and the unevenness of the spatial intensity of the laser intensity distribution directly affects the modified spots, thereby avoiding this.
- Patent Document 2 As a method for shaping the intensity distribution of excimer laser light, a technique described in Patent Document 2 below has been proposed.
- Patent Document 3 listed below is a document that describes a technique for collecting laser light emitted from a plurality of low-power solid-state lasers at one location with an optical fiber and irradiating the collected laser light on a silicon film through an optical waveguide portion.
- laser light emitted from a plurality of laser light emitting elements is collected using an optical fiber body, and the collected laser light is branched into a plurality of branch paths using an optical waveguide portion. Irradiation is described.
- JP 2003-86505 A JP-A-9-129573 JP 2007-88050 A
- Patent Document 2 has a beam homogenizer composed of a large number of optical components such as a cylindrical lens, a fly-eye lens, a beam expander, and a slit, and is extremely complicated including the arrangement of each optical component. There is a problem that it is.
- the technique disclosed in Patent Document 3 irradiates a silicon film with a plurality of laser beams emitted and diffused from the emission surface of the optical waveguide portion.
- the control of the laser power density is not disclosed, and there is a problem that it is difficult to suitably control the laser spot shape / laser power density control for the object.
- Patent Document 3 does not disclose a means for monitoring / maintaining the laser spot shape formed on the silicon film.
- the present invention realizes a rectangular laser spot having a predetermined size, a relatively high density laser power density, and a top flat laser intensity distribution on a surface of an object with a relatively simplified configuration and arrangement.
- An object of the present invention is to provide a semiconductor manufacturing apparatus that modifies an object surface by a spot.
- the present invention comprises a laser light source that emits laser light, a control unit that controls the laser power of the laser light source, a core part that transmits the laser light, and a cladding part that covers the core part.
- a semiconductor manufacturing apparatus for modifying an object surface by irradiating the object with a laser spot formed by the lens from the incident end face to the exit end face
- the optical waveguide part has a core part having a rectangular cross section with a side length of 1 ⁇ m to 20 ⁇ m and a side length perpendicular to the side of 1 mm to 60 mm at the emission end face
- the control unit sets the laser power of the laser light source to a value at which the power density of a laser spot emitted from the emission end face of the core unit is 0.1 mW / ⁇ m 2 or more.
- the present invention also includes a laser light source that emits laser light, a control unit that controls laser power of the laser light source, a core part that transmits the laser light, and an optical waveguide part that includes a cladding part that covers the core part, A lens for forming laser light emitted from the emission end face of the optical waveguide portion into a laser spot having a predetermined shape, and the optical waveguide portion emits laser light from the incident end face due to a difference in refractive index between the core portion and the clad portion.
- a semiconductor manufacturing apparatus for modifying an object surface by irradiating the object with a laser spot guided to an end surface and formed by the lens,
- the optical waveguide portion has a core portion having an elliptical cross section with a short side width of 1 ⁇ m to 20 ⁇ m and a long side width of 1 mm to 60 mm at the emission end face;
- the control unit sets the laser power of the laser light source to a value at which the power density of the laser spot emitted from the emission end face of the core unit is 0.1 mW / ⁇ m 2 or more.
- the third feature is that the PV ratio calculated by (P ⁇ V) / P ⁇ 100% is 20% or less.
- a variable aperture for narrowing a width of the laser beam emitted from the emission end face is provided between the emission end face of the optical waveguide portion and the lens. This is the fourth feature.
- the semiconductor manufacturing apparatus having the fourth feature when the maximum intensity distribution value of the laser spot emitted from the emission end face of the core portion is P and the minimum value of the intensity distribution is V, (P
- the fifth feature is that the PV ratio calculated by ⁇ V) / P ⁇ 100% is 20% or less.
- the present invention provides a laser light source that emits laser light, a control unit that controls the laser power of the laser light source, a plurality of core parts that transmit the laser light, and a clad part that covers the core part. And a lens that forms laser light emitted from the emission end face of the optical waveguide part into a laser spot having a predetermined shape, and a focus control part that performs focus control of the laser spot, and the refraction of the core part and the clad part
- a semiconductor manufacturing apparatus for modifying a surface of an object by guiding laser light from an incident end face to an exit end face due to a difference in rate, and irradiating the object while performing focus control on a laser spot formed by the lens,
- the optical waveguide portion has a main core portion having a rectangular cross section with one side length of 1 ⁇ m to 20 ⁇ m and the other side length orthogonal to the one side of 1 mm to 60 mm, and a focus control laser disposed around the main core portion.
- the control unit sets the laser power of the laser light source to a value at which the power density of the laser spot emitted from the main core unit is 0.1 mW / ⁇ m 2 or more,
- a sixth feature is that the focus control unit performs focus control based on the reflected light of the laser beam emitted from the sub-core unit.
- the present invention provides a laser light source that emits laser light, a control unit that controls the laser power of the laser light source, a plurality of core parts that transmit the laser light, and a clad part that covers the core part. And a lens that forms laser light emitted from the emission end face of the optical waveguide part into a laser spot having a predetermined shape, and a focus control part that performs focus control of the laser spot, and the refraction of the core part and the clad part
- a semiconductor manufacturing apparatus for modifying a surface of an object by guiding laser light from an incident end face to an exit end face due to a difference in rate, and irradiating the object while performing focus control on a laser spot formed by the lens,
- the optical waveguide portion has a main core portion having an elliptical cross section with a short side width of 1 ⁇ m to 20 ⁇ m and a long side width of 1 mm to 60 mm, and a focus control laser beam disposed around the main core portion.
- the control unit sets the laser power of the laser light source to a value at which the power density of the laser spot emitted from the main core unit is 0.1 mW / ⁇ m 2 or more,
- a seventh feature is that the focus control unit performs focus control based on the reflected light of the laser beam emitted from the sub-core unit.
- the semiconductor manufacturing apparatus having the sixth or seventh feature when the maximum intensity distribution value of the laser spot emitted from the emission end face of the core portion is P and the minimum value of the intensity distribution is V
- the PV ratio calculated by (P ⁇ V) / P ⁇ 100% is 20% or less, which is an eighth feature.
- a variable aperture for narrowing a width of the laser beam emitted from the emission end face is provided between the emission end face of the optical waveguide portion and the lens. This is the ninth feature.
- a variable aperture for narrowing the width of the laser beam emitted from the emission end face is provided between the emission end face of the optical waveguide portion and the lens.
- a tenth feature is provided.
- the reflected laser spot of the sub core portion projected by the reflected light of the laser beam emitted from the sub core portion by the focus control unit is predetermined.
- the eleventh feature is that the focus control is performed so as to obtain the size.
- the reflected laser spot of the sub-core portion projected by the reflected light of the laser beam emitted from the sub-core portion has a predetermined size.
- the twelfth feature is that the focus control is performed as described above.
- the reflected laser spot of the sub-core portion projected by the reflected light of the laser beam emitted from the sub-core portion has a predetermined size.
- the thirteenth feature is that the focus control is performed as described above.
- the reflected laser spot of the sub-core portion projected by the reflected light of the laser beam emitted from the sub-core portion has a predetermined size.
- the fourteenth feature is that the focus control is performed as described above.
- a semiconductor manufacturing apparatus propagates a laser beam emitted from a laser light source using an optical waveguide portion comprising a core portion and a cladding portion covering the core portion, the core portion having a predetermined size, and a laser light source.
- the semiconductor manufacturing apparatus can perform focus control with a simple structure by providing a sub-core portion that transmits laser light for focus control of a laser spot in the optical waveguide portion.
- the block diagram of the semiconductor manufacturing apparatus by one Embodiment of this invention The figure for demonstrating the output end surface of the optical waveguide part by this embodiment.
- the laser spot is formed in a desired spot shape by using a lens group of laser beams from a plurality of laser light emitting elements.
- the PV ratio the uniformity of the spatial laser intensity distribution of this laser spot.
- the maximum value of the laser intensity distribution is shown in FIG. Is defined as P
- the minimum value of the laser intensity distribution is defined as V
- PV ratio (P ⁇ V) / P ⁇ 100%.
- a semiconductor manufacturing apparatus receives a plurality of laser light sources (not shown) that emit laser light and a plurality of laser lights emitted from the plurality of laser light sources.
- the collimating lens 2 is configured to be incident and polarized into parallel laser light, and the objective lens 3 is used to narrow down the parallel laser light in order to focus the parallel laser light emitted from the collimating lens 2.
- the optical waveguide portion 1 includes a core portion 10 having a predetermined refractive index and a clad portion 11 that covers the periphery of the core portion 10 and has a refractive index different from that of the core portion 10. For this reason, the optical waveguide unit 1 totally reflects the laser beam incident on the core unit 10 at the boundary surface with the cladding unit 11 having a different refractive index, confines the laser beam inside the core unit 10, and performs predetermined propagation. It leads in the direction.
- the optical waveguide portion 1 also has a function of smoothing the laser light spatial intensity distribution on the surface orthogonal to the optical axis direction 14 by repeating the reflection of the laser light a plurality of times in the core portion 10.
- the detailed structure of the optical waveguide portion 1 includes a rectangular frame cylindrical cladding portion 17 indicated by a hatched area, as shown in FIG. 2 when the emission end face 15 of the optical waveguide portion 1 is viewed from the optical axis direction 14 of FIG.
- the core portion 16 has a refractive index different from that of the clad portion 17 and allows the laser light to pass through while being reflected by the boundary surface with the clad portion 17.
- the core portion 16 has an elongated cross-sectional rectangular plate shape with a length L / width D, and when the longitudinal direction L of the core portion is the X direction, the X direction coincides with the X direction in FIG.
- the laser beam path of the semiconductor manufacturing apparatus will be described with reference to FIG.
- the laser beam 13 emitted from the laser light source is incident on the core portion 10 of the optical waveguide portion 1, and the laser beam 13 incident on the optical waveguide portion 1 is totally reflected at the boundary with the cladding portion 11 while absorbing loss.
- the spatial laser intensity distribution in the plane orthogonal to the optical axis direction 14 is smoothed, and the laser beam is emitted from the emission end face 15.
- this apparatus narrows the emitted laser light to a predetermined width using the variable apertures 6 and 7, polarizes this laser light into parallel light using the collimator lens 2, and uses this parallel light using the objective lens 3. Then, an image is formed on the surface of the object 4 so as to focus the laser spot 5 of a predetermined size at a predetermined magnification ratio.
- the laser beam 13 incident on the core portion 10 of the optical waveguide portion 1 may be incident on the core portion 10 after being squeezed by a lens (not shown), and the laser beam installed at a location distant from the laser light source is used using an optical fiber. It may be transmitted and incident on the core unit 10. Further, there may be a plurality of laser light sources, and it is sufficient to install as many laser light sources as necessary. Further, a plurality of optical fibers are arranged in parallel, the emission portions of the plurality of optical fibers are directly connected to the core portion 10 of the optical waveguide portion 1, and the laser light emitted from the emission portions of the plurality of optical fibers is the core portion 10 of the optical waveguide portion 1. It may be directly incident on.
- the length of the optical waveguide portion 1 in the optical axis direction 14 is determined so that the PV ratio is 20% or less at the emission end face 15 of the optical waveguide portion 1.
- the laser beam that has exited the exit end face 15 of the optical waveguide section 1 is controlled in the X direction by the variable apertures 6 and 7.
- FIG. 3 is a diagram for explaining the laser intensity distribution output from the emission end face 15 of the optical waveguide section 1.
- both ends A and B of the laser intensity distribution 18 with the horizontal axis as X correspond to the positions A and B in FIG. 2, and both ends of the laser spot rise steeply and are somewhat uneven. There will be a top flat shape.
- the size of the laser spot 5 formed on the object surface 4 by the semiconductor manufacturing apparatus according to the present embodiment is the objective of the size (length L ⁇ width D) of the emission end face 15 of the optical waveguide section 1. It is a size that is similarly reduced by the magnification of the lens.
- the spatial intensity distribution of the laser spot 5 formed on the object surface 4 coincides with the laser intensity distribution 18 output from the emission end face 15 of the optical waveguide section 1. Therefore, the semiconductor manufacturing apparatus according to the present embodiment forms a laser spot having a rectangular irradiation surface by passing the laser beam through the optical waveguide portion 1 having a rectangular (rectangular) cross section, and uses the formed laser spot. Modification of the object can be performed.
- the laser spot 5 in order to grow an object, for example, amorphous silicon having a thickness of about 50 nm on polysilicon, the laser spot 5 may be relatively scanned in the Y direction.
- the width of the laser spot 5 in the scanning direction is preferably 20 ⁇ m or less, and the laser power density is preferably 0.1 mW / ⁇ m 2 or more.
- the laser wavelength for modifying the object of the semiconductor manufacturing apparatus under these conditions is preferably, for example, 370 nm to 480 nm at which absorption by amorphous silicon is obtained.
- the longitudinal direction of the laser spot 5 (X Direction) is preferably 20% or less. This is because when the PV ratio is 20% or more, unevenness in crystal size, local aggregation, and sublimation are likely to occur.
- the short core width D of the optical waveguide portion 1 may be 20 ⁇ m or less, and the long core width L is preferably 1 mm or more.
- the laser power density at the emission end face 15 of the optical waveguide portion 1 may be 0.1 mW / ⁇ m 2 or more.
- the PV ratio in the laser intensity distribution on the emission end face 15 of the optical waveguide portion 1 may be 20% or less. If the magnification of the objective lens is increased, the laser spot condition on the object surface can be easily satisfied.
- the collimator lens 2 and the objective lens 3 have been described as examples in which the exit end face 15 of the optical waveguide unit 1 is similarly reduced and condensed and projected onto the object.
- the present invention is limited to this.
- a laser spot 5 having an arbitrary aspect ratio may be formed on the surface of the object 4 using a lens in which the aspect ratio of the output end face of the optical waveguide portion is set to a predetermined magnification.
- the optical waveguide portion according to the present invention may have a side length of 1 ⁇ m to 20 ⁇ m and a side length orthogonal to the side of 1 mm to 60 mm.
- the semiconductor manufacturing apparatus is emitted from a laser light source (not shown) similar to that of the previous embodiment, the composite optical waveguide portion 19, the collimating lens 23, and the composite optical waveguide portion 19, which are features of this embodiment.
- a beam splitter 24 that transmits laser light and reflects laser light reflected from the object 37 in a right angle direction, an objective lens 25, a condenser lens 28, and the laser light reflected by the beam splitter are received.
- a focus detector 29 that converts the signal into an electrical signal, and arithmetic elements 30 to 32 that output focus error signals 33A to 33F based on the electrical signal output from the focus detector 29.
- the composite optical waveguide portion 19 includes a common clad portion 38 (hatched portion) having a rectangular cross section and the clad portion as shown in FIG. 5 when the emission end face 22 of the composite optical waveguide portion 19 of FIG. 4 is viewed from the optical axis 36A.
- a plurality of core portions that reflect the laser beam due to the difference in refractive index from the clad portion 38 are disposed inside 38.
- This core part has a central rectangular core part 39 (corresponding to the main core part) and three small small core parts 41A to 41F (corresponding to the sub-core part) symmetrically arranged around the rectangular core part 39. is doing.
- the cladding part and the seven core parts have a depth direction cut along the direction of the optical axis 36A, and the laser light incident surface has the same size and shape as described above.
- the composite optical waveguide portion 19 according to the present embodiment totally reflects the laser light incident on the core portion at the boundary with the cladding portion, transmits the laser light without absorption loss, and transmits the laser light through each core portion. Light is allowed to pass through each core without mutual interference.
- the exit end face of each core is perpendicular to the optical axis 36A, and the exit end face of each core is aligned with the same plane with high precision.
- the apparatus uses laser light that passes through the core portion 39 as laser light for modifying the object 37 and laser light that passes through the small core portions 41A to 41F as the size of the laser spot 27. It is used as a laser beam for detecting.
- laser beams 34 to 36 emitted from a plurality of laser light sources are incident on a plurality of core sections 39 and small core sections 41A to 41F of the optical waveguide section 19, and the optical waveguide into which the laser beams 34 to 36 are incident.
- the part 1 transmits the laser beams 34 to 36 through the core part 39 and the plurality of small core parts 41A to 41F without causing absorption loss.
- the passed laser light is emitted from the emission end face 22 by smoothing the spatial laser intensity distribution in a plane orthogonal to the optical axis direction 36A.
- the emitted laser light passes through the collimating lens 23 and the beam splitter 24, enters the objective lens 25, and the laser light focused more strongly than the objective lens 25 is applied to the target surface 26 of the target object 37 on the output end surface 22.
- An image is formed so as to focus the laser spot 27 of a predetermined size on the top.
- the semiconductor manufacturing apparatus reflects the reflected light of the laser spot 27 imaged on the object surface 26 of the object 37 at a right angle by the beam splitter 24, and this reflected light is reflected by the focus detector 29 through the lens 28.
- the focus detector 29 generates focus error signals 33A to 33F corresponding to the respective laser spots, and performs feedback control so that the focus error signals 33A to 33F become zero.
- the laser beam is controlled to be in the most focused state (focused state) on the target surface 26.
- the composite optical waveguide unit 19 uses the characteristic that the laser spot size is larger when the laser spot 27 is out of focus on the target surface 26 of the target object 37 than when it is focused.
- the change in the laser spot size is detected at the level of the focus error signal. That is, the objective lens 25 is controlled to move in the optical axis direction (Z direction) by using one or a plurality of focus error signals based on the reflected light of the laser light passing through the six small core portions 41A to 41F.
- Autofocus control can be performed, and by performing this autofocus control, it is possible to maintain a stable spot size against fluctuations in the object (Z direction) due to disturbance.
- the core used for autofocus control is preferably a small core portion 41B or 41E located at the center in the longitudinal direction of the core portion 39 of the waveguide through which the laser for modification is passed.
- FIG. 6 is a relationship diagram between the voltage of the focus error signal and the inclination of the object surface.
- the object surface 26 is not in a plane orthogonal to the optical axis 36 ⁇ / b> A, and particularly the object surface 26 is inclined in the longitudinal direction (X direction) of the laser spot 27.
- the focus error signals 43A to 43C generated by the laser beams emitted from the small core portions 41A to 41C are zero in the focus error signal (voltage) 43B from the core portion 41B in the middle of FIG.
- the focus error signal (voltage) 43A by the portion 41A becomes negative, and the focus error signal (voltage) 43C by the core portion 41C in the lower part of FIG. 6 becomes positive.
- the focal positions 44A, 44B, 44C of each laser spot are Z Detected with a shift relative to the axis.
- the laser spot that modifies the object has a shape elongated in the X direction (corresponding to the shape of the common clad portion 38), and by detecting a focus shift at both ends of the laser spot, A change in the width of the laser spot in the short direction (Y direction) can be detected.
- the focus error signals 43A to 43C generated by the laser beams emitted from the small core portions 41A to 41C are shown. However, the same applies to the case where the small core portions 41D to 41F are used.
- the focus error signal can be obtained.
- the inclination of the object in the Y direction can also be detected. You can also.
- the modification of the object is performed by scanning the laser spot formed on the object surface in the Y direction, and in order to perform stable and uniform modification, the laser spot formed on the object surface is changed. It is desirable to use a rectangular shape, and the laser spot width in the scanning direction is constant.
- the semiconductor manufacturing apparatus according to the present embodiment can reliably perform tilt correction by performing adjustment while detecting the focus signals at both ends of the laser spot in the initial tilt adjusting step of the object.
- the tilt correction can be performed during the initial adjustment by adjusting the tilt so that the in-focus line 45 (dotted line) shown in FIG.
- the apparatus according to the present embodiment can detect and correct the defocus during the reforming operation in real time by monitoring the focus error signals (for example, signals 43A and 43C) at both ends of the laser spot during the reforming operation. . Furthermore, the apparatus of this embodiment can also stabilize the focus control during the reforming operation. This will be specifically described. In general, the reflectance of the object changes before and after the modification, and this reflectance fluctuation deteriorates the stability of the focus control. In order to avoid this, whether the reflected light before modification or the reflectance after modification is selected as the autofocus signal is determined in advance, and scanning is performed according to the scanning direction of the modified laser spot 27.
- the focus error signals for example, signals 43A and 43C
- a preceding focus spot for example, a laser spot irradiated by the small core portions 41A, 41B, and 41C
- a subsequent focus spot for example, a small focus spot irradiated by the scanning
- the laser spot irradiated by the core portions 41D, 41E, and 41F By selecting the laser spot irradiated by the core portions 41D, 41E, and 41F and using it as a focus error signal, a stable return light amount is always obtained, and a stable focus signal is obtained. As a result, it is possible to stabilize the autofocus control.
- a similar focus error signal can be generated by the modified laser spot and used for autofocus control, the focus error signal generated from the modified laser spot being modified is easily disturbed. It is preferable to perform autofocus control using a focus error signal generated at the laser spot.
- the example in which the small core portion that passes the six laser beams is arranged around the core portion of the optical waveguide portion that transmits the laser beam for the purpose of modifying the object.
- the number of small core parts is not limited to this, and any number may be used, and the quantity and arrangement position may be determined as necessary.
- the present apparatus may allow only the core portion at a required position to pass the laser beam without passing the laser through all the six small core portions.
- the present apparatus is not limited to passing laser beams having the same wavelength through all six small core portions, and may pass laser beams having different laser wavelengths.
- the shape of the six small core portions is not limited to a rectangle, and may be, for example, a circle or an ellipse. In this case, it is preferable that the main core portion of the optical waveguide portion has an elliptical cross-sectional shape with a short side width of 1 ⁇ m to 20 ⁇ m and a long side width of 1 mm to 60 mm.
- the present invention is not limited to this and may be different.
- the core size on the incident end face side may be large and the interval between the cores may be wide, and any desired core size and core interval may be used on the exit end face.
- an insulating substrate 80 on which a silicon film is formed is mounted on an XY stage 47 that can be moved to an arbitrary position in the X direction and the Y direction at an arbitrary speed.
- the laser beam is irradiated using the semiconductor manufacturing apparatus 48 of any of the embodiments, and the XY stage 47 is moved so that the linear laser spot 50 scans at a predetermined scanning speed in the short direction of the linear laser spot 50.
- the silicon film of the insulating substrate 80 can be modified by emitting the linear laser spot 50 on the silicon film surface.
- the linear laser spot 50 is scanned in the direction of the arrow 51 by moving on the side of the insulating substrate 80 on which the silicon film is formed.
- the linear laser spot 50 may be scanned relatively by moving in the direction and the Y direction.
- the laser light source is independently fixedly installed at a remote location, and the laser light from the laser light source is used as the core of the semiconductor manufacturing apparatus using an optical fiber. It is also possible to transmit only the semiconductor manufacturing apparatus, and this can be easily realized because the optical fiber is generally flexible.
- the linear laser spot 50 may be scanned relatively by moving both the semiconductor manufacturing apparatus (laser irradiation apparatus) 48 and the insulating substrate 80 on which the silicon film is formed.
- FIG. 8 is a diagram for explaining the relationship between the laser scanning positions on the liquid crystal display 53 and the mother glass 52.
- FIG. 8A shows the entire configuration of the display 53
- FIG. 8B shows the mother glass. It is assumed that a plurality of displays 53 are formed on the mother glass 52.
- the display 53 targeted by the present embodiment includes a large number of pixel units 53A for displaying an image on one display 53, an X driver circuit 55 that drives (liquid crystal) pixels in the X direction, and a (liquid crystal) in the Y direction. ) It is composed of a Y driver circuit 56 for driving a pixel, and the X driver circuit 55 and the Y driver circuit 56 need to be composed of high performance TFTs in the liquid crystal display device as described above. Is required.
- the laser irradiation apparatus and laser irradiation method according to the present embodiment perform silicon modification of the X driver circuit 55 and the Y driver circuit 56.
- the linear laser spots 57 and 58 are changed to the X driver circuit 55 and
- the semiconductor manufacturing apparatus is scanned in the directions of arrows 59 and 60 while irradiating a laser spot, thereby operating the driver circuit to be modified.
- one driver circuit forming unit in the present embodiment may be scanned several times as necessary. It is preferable to perform the silicon modification treatment by scanning the linear laser spot in the directions of arrows 62 to 65 on the mother glass 52 before cutting out the display 53.
- FIG. 9 is a diagram for explaining the system-on-glass display.
- a high function integrated circuit such as a control circuit 69, an interface circuit 70, a memory circuit (not shown), and an arithmetic circuit 71 are provided. It is formed by the same configuration and method as in FIG.
- high-quality polysilicon is required for high-function circuits, and high-quality polysilicon can be formed by using a method similar to the silicon modification method for the X driver circuit and Y driver circuit described in FIG. .
- quartz glass or non-alkali glass is exemplified as the insulating substrate.
- the present invention is not limited to this, and a plastic substrate or a bendable plastic sheet may be used.
- the liquid crystal display was used as a modification
- the semiconductor manufacturing apparatus has a configuration in which a rectangular laser spot of a predetermined size, a relatively high density laser power density, and a top flat laser intensity distribution are relatively simplified on the surface of an object.
- the object surface can be uniformly modified by the laser spot.
- this embodiment can scan the linear laser spot in a desired position on the mother glass, a desired scanning speed, and a desired direction with a desired laser output, and a high-quality silicon film is relatively inexpensive. Obtainable.
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Abstract
Description
homogenizer:レーザ光のプロファイルを照射面において均一化するための光学モジュール)は、エキシマレーザ出射後段にシリンドリカルレンズ、フライアイレンズなどで構成されているレンズ群を配置し、最終的にシリコン膜面上にて所望のスポット形状とレーザ強度分布が得られる。
前記光導波路部が、一辺長を1μm~20μm、該一辺と直交する他辺長を1mm~60mmとした断面矩形形状のコア部を出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記コア部の出射端面から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定することを第1の特徴とする。
前記光導波路部が、短手方向幅を1μm~20μm、長手方向幅を1mm~60mmとした断面長楕円形状のコア部を出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記コア部の出射端面から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定することを第2の特徴とする。
前記光導波路部が、一辺長を1μm~20μm、該一辺と直交する他辺長を1mm~60mmとした断面矩形形状の主コア部と、該主コア部の周囲に配置されたフォーカス制御用レーザ光を出射する出射端面の複数の副コア部とを出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記主コア部から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定し、
前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光を基にフォーカス制御を行うことを第6の特徴とする。
前記光導波路部が、短手方向幅を1μm~20μm、長手方向幅を1mm~60mmとした断面長楕円形状の主コア部と、該主コア部の周囲に配置されたフォーカス制御用レーザ光を出射する出射端面の複数の副コア部とを出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記主コア部から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定し、
前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光を基にフォーカス制御を行うことを第7の特徴とする。
尚、本願明細書に添付した図面に用いる図の座標X、Y、Zは全て共通とし、レーザスポットは、複数のレーザ発光素子からのレーザ光をレンズ群を用いて所望のスポット形状に形成されるものであって、例えばX方向に延びる長方楕円形状に形成され、このレーザスポットの空間的なレーザ強度分布の均一度をPV率と呼び、図3に示す如く、レーザ強度分布の最大値をP、レーザ強度分布の最小値をVとしたとき、PV率=(P-V)/P×100%と定義する。
本発明の一実施形態による半導体製造装置は、図1に示す如く、レーザ光を照射する複数のレーザ光源(図示なし)と、該複数のレーザ光源から照射された複数のレーザ光を入射して出射する光導波路部1と、該光導波路部1から出射したレーザ光の幅を絞り込むために矢印8及び9の方向へ移動する可変アパーチャ6及び7と、この可変アパーチャ6及び7を通過したレーザ光を入射して平行レーザ光に偏光するコリメートレンズ2と、該コリメートレンズ2から出射した平行レーザ光の焦点合わせを行うために平行レーザ光を絞り込む対物レンズ3とから構成されている。
次に本発明の他の実施形態による複合光導波路部を用いた半導体製造装置の構成を図4を参照して説明する。この実施形態による半導体製造装置は、前記実施形態同様のレーザ光源(図示なし)と、本実施形態の特徴である複合光導波路部19と、コリメートレンズ23と、複合光導波路部19から出射されたレーザ光を透過し、被対象物37から反射されたレーザ光を直角方向に反射するビームスプリッタ24と、対物レンズ25と、集光レンズ28と、前記ビームスプリッタにより反射されたレーザ光を受光して電気信号に変換するフォーカスディテクタ29と、該フォーカスディテクタ29から出力された電気信号を基にフォーカスエラー信号33A~33Fを出力する演算素子30~32とから構成される。
更に本実施形態装置は、改質動作中のフォーカス制御の安定化をはかることも可能である。これを具体的に説明する。改質前と改質後において被対象物の反射率が変化するのが一般的であり、この反射率変動がフォーカス制御の安定性を悪化させる。これを回避するため、オートフォーカス信号として改質前の反射光を選定するか又は改質後の反射率を選定するかを予め決定しておき、改質レーザスポット27の走査方向に従い、走査により先行して照射される改質レーザスポット27の先行フォーカススポット(例えば、小コア部41A、41B、41Cにより照射されるレーザスポット)か、走査により遅れて照射される後行フォーカススポット(例えば、小コア部41D、41E、41Fによる照射されるレーザスポット)かを選択してフォーカスエラー信号として使用することにより、常時安定した戻光量が得られ、安定したフォーカス信号が得られる。結果としてオートフォーカス制御の安定化を図ることができる。尚、改質レーザスポットにより同様のフォーカスエラー信号を生成し、オートフォーカス制御にも用いることもできるが、改質中の改質レーザスポットより生成したフォーカスエラー信号は乱れ易いため、前述の如く別レーザスポットにて生成したフォーカスエラー信号を用いオートフォーカス制御を行うのが好ましい。
次に本実施形態による半導体製造装置を用いて液晶ディスプレイのガラス基板上に形成したアモルファスシリコンをポリシリコンにする改質方法を、図7を参照して説明する。
Claims (14)
- レーザ光を発光するレーザ光源と、該レーザ光源のレーザパワーを制御する制御部と、前記レーザ光を透過するコア部及び該コア部を覆うクラッド部から成る光導波路部と、該光導波路部の出射端面から出射したレーザ光を所定形状のレーザスポットに形成するレンズとを備え、前記光導波路部がコア部とクラッド部との屈折率の相違によりレーザ光を入射端面から出射端面に導き、前記レンズが形成したレーザスポットを被対象物に照射することにより被対象物表面を改質する半導体製造装置であって、
前記光導波路部が、一辺長を1μm~20μm、該一辺と直交する他辺長を1mm~60mmとした断面矩形形状のコア部を出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記コア部の出射端面から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定する半導体製造装置。 - レーザ光を発光するレーザ光源と、該レーザ光源のレーザパワーを制御する制御部と、前記レーザ光を透過するコア部及び該コア部を覆うクラッド部から成る光導波路部と、該光導波路部の出射端面から出射したレーザ光を所定形状のレーザスポットに形成するレンズとを備え、前記光導波路部がコア部とクラッド部との屈折率の相違によりレーザ光を入射端面から出射端面に導き、前記レンズが形成したレーザスポットを被対象物に照射することにより被対象物表面を改質する半導体製造装置であって、
前記光導波路部が、短手方向幅を1μm~20μm、長手方向幅を1mm~60mmとした断面長楕円形状のコア部を出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記コア部の出射端面から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定する半導体製造装置。 - 前記コア部の出射端面から出射するレーザスポットの強度分布最大値をP、該強度分布の最小値をVとしたとき、(P-V)/P×100%で算出されるPV率を、20%以下とする請求項1又は2記載の半導体製造装置。
- 前記光導波路部の出射端面とレンズとの間に、前記出射端面から出射したレーザ光の幅を絞り込む可変アパーチャを設けた請求項1又は2記載の半導体製造装置。
- 前記コア部の出射端面から出射するレーザスポットの強度分布最大値をP、該強度分布の最小値をVとしたとき、(P-V)/P×100%で算出されるPV率を、20%以下とする請求項4記載の半導体製造装置。
- レーザ光を発光するレーザ光源と、該レーザ光源のレーザパワーを制御する制御部と、前記レーザ光を透過する複数のコア部及び該コア部を覆うクラッド部から成る光導波路部と、該光導波路部の出射端面から出射したレーザ光を所定形状のレーザスポットに形成するレンズと、前記レーザスポットのフォーカス制御を行うフォーカス制御部とを備え、前記コア部とクラッド部との屈折率の相違によりレーザ光を入射端面から出射端面に導き、前記レンズが形成したレーザスポットをフォーカス制御しながら被対象物に照射することにより被対象物表面を改質する半導体製造装置であって、
前記光導波路部が、一辺長を1μm~20μm、該一辺と直交する他辺長を1mm~60mmとした断面矩形形状の主コア部と、該主コア部の周囲に配置されたフォーカス制御用レーザ光を出射する出射端面の複数の副コア部とを出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記主コア部から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定し、
前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光を基にフォーカス制御を行う半導体製造装置。 - レーザ光を発光するレーザ光源と、該レーザ光源のレーザパワーを制御する制御部と、前記レーザ光を透過する複数のコア部及び該コア部を覆うクラッド部から成る光導波路部と、該光導波路部の出射端面から出射したレーザ光を所定形状のレーザスポットに形成するレンズと、前記レーザスポットのフォーカス制御を行うフォーカス制御部とを備え、前記コア部とクラッド部との屈折率の相違によりレーザ光を入射端面から出射端面に導き、前記レンズが形成したレーザスポットをフォーカス制御しながら被対象物に照射することにより被対象物表面を改質する半導体製造装置であって、
前記光導波路部が、短手方向幅を1μm~20μm、長手方向幅を1mm~60mmとした断面長楕円形状の主コア部と、該主コア部の周囲に配置されたフォーカス制御用レーザ光を出射する出射端面の複数の副コア部とを出射端面に有し、
前記制御部が、レーザ光源のレーザパワーを、前記主コア部から出射するレーザスポットのパワー密度が0.1mW/μm2以上となる値に設定し、
前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光を基にフォーカス制御を行う半導体製造装置。 - 前記コア部の出射端面から出射するレーザスポットの強度分布最大値をP、該強度分布の最小値をVとしたとき、(P-V)/P×100%で算出されるPV率を、20%以下とする請求項6又は7記載の半導体製造装置。
- 前記光導波路部の出射端面とレンズとの間に、前記出射端面から出射したレーザ光の幅を絞り込む可変アパーチャを設けた請求項6又は7記載の半導体製造装置。
- 前記光導波路部の出射端面とレンズとの間に、前記出射端面から出射したレーザ光の幅を絞り込む可変アパーチャを設けた請求項8記載の半導体製造装置。
- 前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光により投影される副コア部の反射レーザスポットが所定サイズになるようにフォーカス制御を行う請求項6又は7記載の半導体製造装置。
- 前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光により投影される副コア部の反射レーザスポットが所定サイズになるようにフォーカス制御を行う請求項8記載の半導体製造装置。
- 前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光により投影される副コア部の反射レーザスポットが所定サイズになるようにフォーカス制御を行う請求項9記載の半導体製造装置。
- 前記フォーカス制御部が、前記副コア部から出射したレーザ光の反射光により投影される副コア部の反射レーザスポットが所定サイズになるようにフォーカス制御を行う請求項10記載の半導体製造装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2008/067684 WO2010035348A1 (ja) | 2008-09-29 | 2008-09-29 | 半導体製造装置 |
US13/059,297 US8644665B2 (en) | 2008-09-29 | 2008-09-29 | Semiconductor manufacturing apparatus |
KR1020117003684A KR101188417B1 (ko) | 2008-09-29 | 2008-09-29 | 반도체 제조장치 |
CN2008801312925A CN102165562B (zh) | 2008-09-29 | 2008-09-29 | 半导体制造装置 |
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PCT/JP2008/067684 WO2010035348A1 (ja) | 2008-09-29 | 2008-09-29 | 半導体製造装置 |
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WO2010035348A1 true WO2010035348A1 (ja) | 2010-04-01 |
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PCT/JP2008/067684 WO2010035348A1 (ja) | 2008-09-29 | 2008-09-29 | 半導体製造装置 |
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US (1) | US8644665B2 (ja) |
KR (1) | KR101188417B1 (ja) |
CN (1) | CN102165562B (ja) |
WO (1) | WO2010035348A1 (ja) |
Cited By (1)
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CN103415793A (zh) * | 2011-03-11 | 2013-11-27 | 株式会社V技术 | 激光照射装置和使用该激光照射装置的液晶显示面板的亮点修正方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US8954170B2 (en) * | 2009-04-14 | 2015-02-10 | Digital Lumens Incorporated | Power management unit with multi-input arbitration |
US8669539B2 (en) | 2010-03-29 | 2014-03-11 | Advanced Ion Beam Technology, Inc. | Implant method and implanter by using a variable aperture |
JP6328521B2 (ja) * | 2014-08-18 | 2018-05-23 | 株式会社ディスコ | レーザー光線のスポット形状検出方法 |
CN116618836B (zh) * | 2023-07-21 | 2023-10-17 | 上海泽丰半导体科技有限公司 | 一种探针卡探针焊接方法及光束整形方法、光路 |
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JP2005217213A (ja) * | 2004-01-30 | 2005-08-11 | Hitachi Ltd | レーザアニール方法およびレーザアニール装置 |
JP2005333150A (ja) * | 2005-06-13 | 2005-12-02 | Hitachi Ltd | Tft基板及び表示装置 |
JP2007115729A (ja) * | 2005-10-18 | 2007-05-10 | Sumitomo Heavy Ind Ltd | レーザ照射装置 |
WO2007114031A1 (ja) * | 2006-03-30 | 2007-10-11 | Hitachi Computer Peripherals Co., Ltd. | レーザ照射装置及びレーザ照射方法及び改質された被対象物の製造方法 |
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JP2683241B2 (ja) | 1988-02-19 | 1997-11-26 | 富士通株式会社 | エネルギー・ビームを用いたアニール装置 |
JP2004064066A (ja) | 2002-06-07 | 2004-02-26 | Fuji Photo Film Co Ltd | レーザアニール装置 |
JP2004063879A (ja) | 2002-07-30 | 2004-02-26 | Sony Corp | レーザ加工装置およびレーザ加工方法 |
JP4772261B2 (ja) | 2002-10-31 | 2011-09-14 | シャープ株式会社 | 表示装置の基板の製造方法及び結晶化装置 |
JP4660074B2 (ja) | 2003-05-26 | 2011-03-30 | 富士フイルム株式会社 | レーザアニール装置 |
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2008
- 2008-09-29 CN CN2008801312925A patent/CN102165562B/zh not_active Expired - Fee Related
- 2008-09-29 US US13/059,297 patent/US8644665B2/en not_active Expired - Fee Related
- 2008-09-29 KR KR1020117003684A patent/KR101188417B1/ko active IP Right Grant
- 2008-09-29 WO PCT/JP2008/067684 patent/WO2010035348A1/ja active Application Filing
Patent Citations (4)
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JP2005217213A (ja) * | 2004-01-30 | 2005-08-11 | Hitachi Ltd | レーザアニール方法およびレーザアニール装置 |
JP2005333150A (ja) * | 2005-06-13 | 2005-12-02 | Hitachi Ltd | Tft基板及び表示装置 |
JP2007115729A (ja) * | 2005-10-18 | 2007-05-10 | Sumitomo Heavy Ind Ltd | レーザ照射装置 |
WO2007114031A1 (ja) * | 2006-03-30 | 2007-10-11 | Hitachi Computer Peripherals Co., Ltd. | レーザ照射装置及びレーザ照射方法及び改質された被対象物の製造方法 |
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CN103415793A (zh) * | 2011-03-11 | 2013-11-27 | 株式会社V技术 | 激光照射装置和使用该激光照射装置的液晶显示面板的亮点修正方法 |
US9377637B2 (en) | 2011-03-11 | 2016-06-28 | V Technology Co., Ltd. | Laser irradiation apparatus and bright point correction method for liquid crystal display panel using the same |
Also Published As
Publication number | Publication date |
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US8644665B2 (en) | 2014-02-04 |
KR101188417B1 (ko) | 2012-10-08 |
KR20110040935A (ko) | 2011-04-20 |
CN102165562B (zh) | 2013-09-04 |
US20110140007A1 (en) | 2011-06-16 |
CN102165562A (zh) | 2011-08-24 |
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