摘要:
A silicon substrate is manufactured from single-crystal silicon which is grown to have a carbon concentration equal to or higher than 1.0×1016 atoms/cm3 and equal to or lower than 1.6×1017 atoms/cm3 and an initial oxygen concentration equal to or higher than 1.4×1018 atoms/cm3 and equal to or lower than 1.6×1018 atoms/cm3 by a CZ method. A device is formed on a front, the thickness of the silicon substrate is equal to or more than 5 μm and equal to or less than 40 μm, and extrinsic gettering which produces residual stress equal to or more than 5 Mpa and equal to or less than 200 Mpa is applied to a back face of the substrate.
摘要:
A method for producing a silicon wafer that has a carbon concentration of 5×1015 to 5×1017 atoms/cm3, interstitial oxygen concentration of 6.5×1017 to 13.5×1017 atoms/cm3, and a resistivity of 100 Ωcm or more.
摘要翻译:碳浓度为5×10 15〜5×10 17原子/ cm 3,间隙氧浓度为6.5×10 17〜13×10 17原子/ cm 3,电阻率为100Ωm以上的硅晶片的制造方法。
摘要:
A high frequency diode comprising: a P type region, a N type region, and an I layer as a high resistivity layer interposed between the P type region and the N type region, wherein the I layer is made of a silicon wafer that has a carbon concentration of 5×1015 to 5×1017 atoms/cm3, interstitial oxygen concentration of 6.5×1017 to 13.5×1017 atoms/cm3, and a resistivity of 100 Ωcm or more.
摘要翻译:一种高频二极管,包括:P型区域,N型区域和插入在P型区域和N型区域之间的作为高电阻率层的I层,其中I层由具有 碳浓度为5×10 15至5×10 17原子/ cm 3,间隙氧浓度为6.5×10 17至13.5 x 10 17原子/ cm 3,电阻率为100Ωm以上。
摘要:
A single crystal ingot is cut to an axial direction so as to including the central axis, a sample for measurement including regions [V], [Pv], [Pi] and [I] is prepared, and a first sample and second sample are prepared by dividing the sample into two so as to be symmetrical against the central axis. A first transition metal is metal-stained on the surface of the first sample and a second transition metal different from the first transition metal is metal-stained on the surface of the second sample. The first and second samples stained with the metals are thermally treated and the first and second transition metals are diffused into the inside of the samples. Recombination lifetimes in the whole of the first and second samples are respectively measured, and the vertical measurement of the first sample is overlapped on the vertical measurement of the second sample. The boundary between the regions [Pi] and [I] and the boundary between the regions [V] and [Pv] are respectively specified from the overlapped result.
摘要:
A semiconductor wafer is set in a laser irradiation apparatus, and laser beam irradiation is performed while the semiconductor wafer is moved. At this time, a laser beam emitted from a laser generating apparatus is condensed by a condensing lens so that the condensing point (focal point) is positioned at a depth of several tens of gm or so from one surface of the semiconductor wafer. Thereby, the crystal structure of the semiconductor wafer in the position having such a depth is modified, and a gettering sink is formed.
摘要:
Provided is an epitaxial substrate for a back-illuminated image sensor and a manufacturing method thereof that is capable of suppressing metal contaminations and reducing occurrence of a white spot defect of the image sensor, by maintaining a sufficient gettering performance in a device process. The present invention includes forming a gettering sink immediately below a surface of a high-oxygen silicon substrate, forming a first epitaxial layer on the surface of the high-oxygen silicon substrate, and forming a second epitaxial layer on the first epitaxial layer, in which the step of forming the gettering sink includes forming an oxygen precipitate region by applying a long-time heat treatment at a temperature of 650-1150° C. to the high-oxygen silicon substrate.
摘要:
This method for manufacturing a high resistivity silicon wafer includes pulling a single crystal such that the single crystal has a p-type dopant concentration at which a wafer surface resistivity becomes in a range of 0.1 to 10 kΩcm, an oxygen concentration Oi of 5.0×1017 to 20×1017 atoms/cm3 (ASTM F-121, 1979), and either one of a nitrogen concentration of 1.0×1013 to 10×1013 atoms/cm3 (ASTM F-121, 1979) and a carbon concentration of 0.5×1016 to 10×1016 atoms/cm3 or 0.5×1016 to 50×1016 atoms/cm3 (ASTM F-123, 1981) by using a Czochralski method, processing the single crystal into wafers by slicing the single crystal, and subjecting the wafer to an oxygen out-diffusion heat treatment process in a non-oxidizing atmosphere. A peak position of a resistivity serving as a boundary between a p-type region of a wafer surface side and a p/n conversion region of an inner side of a thickness direction is adjusted by the nitrogen concentration or the carbon concentration such that the peak position is set to a boundary depth in a range of 10 to 70 μm from the wafer surface.
摘要:
There is provided a semiconductor substrate for solid-state image sensing device in which the production cost is lower than that of a gettering method through a carbon ion implantation and problems such as occurrence of particles at a device production step and the like are solved.Silicon substrate contains solid-soluted carbon having a concentration of 1×1016-1×1017 atoms/cm3 and solid-soluted oxygen having a concentration of 1.4×1018-1.6×1018 atoms/cm3.
摘要:
A wafer for backside illumination type solid imaging device has a plurality of pixels inclusive of a photoelectric conversion device and a charge transfer transistor at its front surface side and a light receiving surface at its back surface side, wherein said wafer is a SOI wafer obtained by forming a given active layer on a support substrate made of C-containing p-type semiconductor material through an insulating layer.
摘要:
A silicon wafer that has a carbon concentration of 5×1015 to 5×1017 atoms/cm3, interstitial oxygen concentration of 6.5×1017 to 13.5×1017 atoms/cm3, and a resistivity of 100 Ωcm or more.
摘要翻译:碳浓度为5×10 15〜5×10 17原子/ cm 3的硅晶片,间隙氧浓度为6.5×10 17〜13.5×10 17原子/ cm 3,电阻率为100Ωm以上。