摘要:
Disclosed is an ashing apparatus wherein decrease in processing efficiency is suppressed. Specifically, a shower plate is arranged to face a substrate stage on which a substrate is placed, and diffuses oxygen radicals supplied into a chamber. A metal blocking plate is arranged between the shower plate and the substrate stage and has a through hole through which oxygen radicals pass. In addition, the metal blocking plate has a first layer, which is made of a metal same as the one exposed in the substrate, on the surface facing the substrate.
摘要:
The object of the present invention is to provide a dry etching method by which generation of a notch in an insulating layer can be suppressed and highly-accurate microfabrication can be realized. In a dry etching method according to the present invention, a substrate in which a semiconductor layer is formed on an insulating layer formed of a silicon oxide is prepared, a through-hole is formed in the semiconductor layer, and a resin film is formed on side walls of the through-hole and a recessed portion while forming the recessed portion in the insulating layer by etching an area in which the insulating layer is exposed via the through-hole. By forming the resin film on the side wall of the recessed portion, the side wall of the recessed portion is protected from collision of ions in plasma and generation of a notch in the recessed-portion side wall is suppressed. Furthermore, by forming the resin film on the side wall of the through-hole, the side wall of the through-hole is protected from the collision of ions in plasma and a hole shape of the through-hole is prevented from fluctuating.
摘要:
The present invention herein provides an apparatus and a method for dry etching, which can solve such a problem that an object to be processed undergoes cracking during the etching procedures due to the heat deformation thereof and thermal shocks, possibly encountered when subjecting, to dry etching procedures, the object having a high thermal expansion coefficient. A dry etching apparatus is provided with an electrode structure having a convex-shaped surface, the convex-shape is one concentric with the cross section of the electrode structure and the height thereof falls within the range of from 0.2 to 1.0 mm. An object consisting of a material having a thermal expansion coefficient of not less than 30×10−7/° C. is subjected to dry etching while using the foregoing dry etching apparatus.
摘要:
There is provided an etching method which can form trenches or via holes having desired aspect ratios and shapes in a to-be-processed object made of silicon. The etching method includes: a hydrogen halide-containing gas-based etching step of etching a silicon substrate by introducing a hydrogen halide-containing gas into a vacuum chamber; a fluorine-containing gas-based etching step of etching the silicon substrate by introducing a fluorine-containing gas into the vacuum chamber; a protective film formation step forming a protective film on the silicon substrate by sputtering a solid material; and a protective film removal step of removing part of the protective film by applying radio frequency bias power to a substrate electrode. The fluorine-containing gas-based etching step, the protective film formation step, and the protective film removal step are repeatedly performed in this order.
摘要:
In an apparatus for manufacturing a ceramic thin film by employing a thermal CVD method, an internal jig, which is provided with a heat radiation material film on the surface, is provided at a position that faces a substrate (S) on which the film is to be formed. The thin film and a semiconductor device are manufactured using such apparatus.
摘要:
Provided is a method for stably manufacturing high-density sintered LiCoO2. Said method uses a CIP-and-sintering method, which has a forming step using cold hydrostatic pressing and a sintering step. The pressing force is at least 1000 kg/cm2, the sintering temperature is between 1050° C. and 1120° C., and the sintering time is at least two hours. This makes it possible to stably manufacture sintered LiCoO2 with a relative density of at least 90%, a resistivity of at most 3 kΩ·cm, and a mean grain diameter between 20 and 50 μm.
摘要翻译:提供一种用于稳定制造高密度烧结LiCoO2的方法。 所述方法使用CIP和烧结方法,其具有使用冷静压和烧结步骤的成形步骤。 按压力为1000kg / cm 2以上,烧结温度为1050℃〜1120℃,烧结时间为2小时以上。 这使得可以稳定地制造相对密度为至少90%,电阻率至多为3kΩ·OHgr·cm的平均晶粒直径为20至50μm的烧结LiCoO 2。
摘要:
A thin film manufacturing system, wherein a stage for placing a substrate thereon is disposed within a vacuum reactor and a gas head for supplying a film forming gas to a central area on a top face of the vacuum reactor is arranged so that the gas head is opposed to the stage. A cylindrical sleeve member is disposed and comes in close contact with a side wall of the stage to surround a periphery of the stage. The height of the stage can be established at the position where the volume of a second space formed below the stage and connected to a vacuum discharge means is larger than that of a first space formed above the stage, in such a manner that an exhaust gas is isotropically discharged from the first space without causing any convection current therein through the interstice between the sleeve member and an inner wall surface constituting the reactor.
摘要:
A method for dry etching an interlayer insulating film with an ArF resist or KrF resist thereon comprises dry etching fine features into the interlayer insulating film with an etching gas in such a manner as to form a polymer film on the ArF or KrF resist from the etching gas, wherein the etching gas is introduced under a pressure of 0.5 Pa or less, and wherein a Fourier transform infrared spectrum of the polymer film includes a C—F bond peak at about 1200 cm−1, a C—N bond peak at about 1600 cm−1, and a C—H bond peak at about 3300 cm−1.
摘要:
A dry etching method by which a substrate can be dry-etched on both sides without a crack is provided.The dry etching method includes: introducing an etching gas having a fluorocarbon gas and a rare gas into a vacuum chamber; generating plasma in the vacuum chamber having a predetermined pressure; and etching a substrate to be processed adhered on an adhesive surface of a heat-conductive sheet disposed on a substrate table.
摘要:
The object of the present invention is to provide a dry etching method which permits the reduction of the amount of any etching product formed during the etching process to thus improve the in-plane etching uniformity with respect to an object to be etched. The dry etching method comprises the steps of providing an electrode equipped with an electrode-presser member which at least comprises a surface layer composed of an yttrium-containing oxide and which is disposed on the peripheral region of the upper surface of the electrode, placing a substrate on the electrode and then subjecting the substrate to dry etching, while preventing the formation of any etching product at the peripheral region of the electrode.