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:
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:
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.
摘要:
The present invention herein provides a shower head whose temperature can be controlled in consideration of the film-forming conditions selected and a thin film-manufacturing device which permits the stable and continuous formation of thin films including only a trace amount of particles while reproducing a good film thickness distribution and compositional distribution, and a high film-forming rate and which is excellent in the productivity and the mass-producing ability as well as a method for the preparation of such a film. The shower head is so designed that the shower head structure is incorporated into an upper cap of a film-forming vessel, that a heat-exchange means is disposed in the upper cap to thus control the temperature of the upper cap and to in turn allow heat-exchange to occur at the contact surface between a disk-like shower plate constituting the shower head surface and the upper cap and that the temperature of the shower head can be controlled in consideration of the film-forming conditions selected. A thin film-manufacturing device is equipped with the shower head in its film-forming vessel and a thin film is prepared using the device.
摘要:
An etching method which uses an apparatus having a chamber in which an etching gas is excited by plasma; a table arranged in the chamber which heats a substrate mounted thereon; and a frame member which includes etching-endurable material which is arranged around the table, and which has an upper surface arranged at a position lower than an upper surface of the table, the etching method including: arranging the substrate on the upper surface of the table such that a peripheral part of the substrate projects above the table; and arranging the substrate such that a ratio of a height from the upper surface of the frame member to a bottom surface of the substrate and a projecting length from a side surface of the table to an outer circumference of the substrate is 1.5 or more
摘要:
A multilayer thin film formation method and a multilayer thin film formation apparatus that improve dielectric characteristics and piezoelectric characteristics of a thin film formed from a lead-based perovskite complex oxide. The multilayer thin film formation method includes formation of a lower electrode layer (32b) containing a noble metal above a substrate (S) by sputtering a lower electrode layer target (TG2), and superposing a lead-based complex oxide layer (33) on the lower electrode layer (32b) by sputtering an oxide layer target (TG3) containing lead. The lower electrode layer (32b) has a thickness restricted to 10 to 30 nm, and the lead-based complex oxide layer (33) has a thickness restricted to 0.2 and 5.0 μm.
摘要:
A thin film-forming apparatus, for ensuring uniform plane distribution of properties of a film formed on a substrate surface, has a gas-supply port 24a supplying a gas mixture from a gas-mixing chamber 24 to a shower head 25. The port is arranged at the peripheral portion on the bottom face of the gas-mixing chamber so that the gas mixture flows from the upper peripheral region of the head towards the center thereof. An exhaust port 32 discharging the exhaust gas generated in the film-forming chamber 3 is arranged at a position lower than the level of a stage 31 during film-formation directing the exhaust gas towards the side wall of the chamber 3 and discharging the exhaust gas through the exhaust port. The stage 31 is designed to move freely up and down to adjust the distance between the shower head 25 and substrate S.
摘要:
The present invention herein provide a thin film-manufacturing device and a thin film-manufacturing method which are excellent in the mass-production ability and productivity, which permit the stable and continuous production of films over a long period of time while reproducing a good film thickness distribution, a good compositional distribution and a high film-forming rate and controlling the number of particles generated during the film-formation to a lower level. The device is one serving as a CVD device in which a film-forming gas is introduced into a reaction chamber from the upper portion of the chamber serving as a reaction space, through a shower head and a film is formed on a heated substrate, wherein the device is so designed that the upper reaction space is constructed by the substrate-supporting stage which is free of any rotational motion or free of any elevating motion, the shower head and a deposition-inhibitory plate, that the substrate-supporting stage and the deposition-inhibitory plate are so arranged as to form, between them, a concentric gap or interstice serving as a gas-exhaust path through which an inert gas can flow from the upper portion of the gas-exhaust path along the deposition-inhibitory plate and that a lower space is formed on the secondary side of the gas-exhaust path.
摘要:
To provide a resistance change device that can be protected from an excess current without enlarging a device size. A resistance change device 1 according to the present embodiment includes a lower electrode layer 3, an upper electrode layer 6, a first metal oxide layer 51, a second metal oxide layer 52, and a current limiting layer 4. The first metal oxide layer 51 is disposed between the lower electrode layer 3 and the upper electrode layer 6, and has a first resistivity. The second metal oxide layer 52 is disposed between the first metal oxide layer 51 and the upper electrode layer 6, and has a second resistivity higher than the first resistivity. The current limiting layer 4 is disposed between the lower electrode layer 3 and the first metal oxide layer 51, and has a third resistivity higher than the first resistivity and lower than the second resistivity.
摘要:
[Object] To provide a deposition method and a deposition apparatus capable of forming a metal compound layer having desired film characteristics uniformly in a substrate surface.[Solving Means] A deposition method according to an embodiment of the present invention includes evacuating an inside of a vacuum chamber 10 having a deposition chamber 101 formed inside a cylindrical partition wall 20 and an exhaust chamber 102 formed outside the partition wall 20, via an exhaust line 50 connected to the exhaust chamber 102. A process gas containing a reactive gas is introduced into the exhaust chamber 102. With the deposition chamber 101 being maintained at a lower pressure than the exhaust chamber 102, the process gas is supplied to the deposition chamber 101 via a gas flow passage 80 between the partition wall 20 and the vacuum chamber 10.