摘要:
A method including placing a wafer active side down in a chamber and reducing the pressure in the chamber. An apparatus or system including a chamber having an interior volume suitable to accommodate a semiconductor wafer and capable of maintaining a vacuum; and a support to maintain a wafer in the volume of the chamber with minimum or no contact with an active side of the wafer, wherein an amount of particles that an active side of a wafer is exposed to during a pressure change in the chamber is minimized when the wafer is loaded in the chamber in an active side down configuration.
摘要:
A reticle carrier for an Extreme Ultraviolet (EUV) reticle may include nested grids of electret fibers to provide active protection from contamination without a power supply. The reticle carrier may include in-line sensors for in-situ monitoring of contamination. Grids of electret fibers may also be used in an EUV pellicle.
摘要:
Erosion of material in an electrode in a plasma-produced extreme ultraviolet (EUV) light source may be reduced by treating the surface of the electrode. Grooves may be provided in the electrode surface to increase re-deposition of electrode material in the grooves. The electrode surface may be coated with a porous material to reduce erosion due to brittle destruction. The electrode surface may be coated with a pseudo-alloy to reduce erosion from surface waves caused by the plasma in molten material on the surface of the electrode.
摘要:
A reticle carrier for an Extreme Ultraviolet (EUV) reticle may include nested grids of electret fibers to provide active protection from contamination without a power supply. The reticle carrier may include in-line sensors for in-situ monitoring of contamination. Grids of electret fibers may also be used in an EUV pellicle.
摘要:
Erosion of material in an electrode in a plasma-produced extreme ultraviolet (EUV) light source may be reduced by treating the surface of the electrode. Grooves may be provided in the electrode surface to increase re-deposition of electrode material in the grooves. The electrode surface may be coated with a porous material to reduce erosion due to brittle destruction. The electrode surface may be coated with a pseudo-alloy to reduce erosion from surface waves caused by the plasma in molten material on the surface of the electrode.
摘要:
A reticle carrier for an Extreme Ultraviolet (EUV) reticle may include nested grids of electret fibers to provide active protection from contamination without a power supply. The reticle carrier may include in-line sensors for in-situ monitoring of contamination. Grids of electret fibers may also be used in an EUV pellicle.
摘要:
A magnetic and/or electric field may be generated around collector optics in an EUV lithography system to deflect debris particles from the reflective surfaces of the optics. The magnetic and/or electric field may be generated by a solenoid structure around the optics or by passing current through inner an outer shells in a nested shell arrangement.
摘要:
Apparatus and methods to protect a photomask that is used for semiconductor photolithography at wavelengths outside the visible spectrum include a pellicle that is readily retracted during exposure or to provide access to the photomask. The pellicle can be transparent at an inspection wavelength and opaque at an exposure wavelength. In various embodiments, the pellicle is slid, retracted, or pivoted relative to a base aligned with the photomask, thus uncovering the photomask. When overlying the photomask, the pellicle can be secured with magnetic elements, such as magnets or electromagnets. In another embodiment, the pellicle includes a diaphragm that can be opened or closed. Methods of using a pellicle are also described.
摘要:
Testing of a mask which is intended to be used for low wavelength lithography. At lower wavelengths, e.g., 157 nm, certain contaminants may become visible, even though they were transparent under visible or ultraviolet light. A combination of Raman spectroscopy and infrared absorption spectroscopy are used to identify the contaminants.
摘要:
A method and a semiconductor device for incorporating defect mitigation structures are provided. The semiconductor device comprises a substrate, a defect mitigation structure comprising a combination of layers of doped or undoped group IV alloys and metal or non-metal nitrides disposed over the substrate, and a device active layer disposed over the defect mitigation structure. The defect mitigation structure is fabricated by depositing one or more defect mitigation layers comprising a substrate nucleation layer disposed over the substrate, a substrate intermediate layer disposed over the substrate nucleation layer, a substrate top layer disposed over the substrate intermediate layer, a device nucleation layer disposed over the substrate top layer, a device intermediate layer disposed over the device nucleation layer, and a device top layer disposed over the device intermediate layer. The substrate intermediate layer and the device intermediate layer comprise a distribution in their compositions along a thickness coordinate.