摘要:
[Object] To provide a method and an apparatus for manufacturing a variable resistance element by which a metal oxide layer having a desired resistivity can be precisely formed.[Solving Means] The method of manufacturing the variable resistance element according to an embodiment of the present invention includes a step of forming a first metal oxide having a first resistivity and a step of forming a second metal oxide having a second resistivity different from the first resistivity. The first metal oxide is formed on a substrate by sputtering, while sputtering a first target made of an oxide of metal, a second target made of the metal with a first power. The second metal oxide layer is formed on the first metal oxide layer by sputtering the second target with a second power different from the first power while sputtering the first target.
摘要:
To provide a resistance change element which does not require a forming process and enables reduction of power consumption and miniaturization of the element, and to provide a method for producing it. A resistance change element 1 according to an embodiment of the present invention includes a bottom electrode layer 3, a top electrode layer 5 and an oxide semiconductor layer 4. The oxide semiconductor layer 4 has a first metal oxide layer 41 and a second metal oxide layer 42. The first metal oxide layer 41 is formed between the bottom electrode layer 3 and the top electrode layer 5, and in ohmic contact with the bottom electrode layer 3. The second metal oxide layer 42 is formed between the first metal oxide layer 41 and the top electrode layer 5, and in ohmic contact with the top electrode layer 5.
摘要:
To provide a resistance change element which does not require a forming process and enables reduction of power consumption and miniaturization of the element, and to provide a method for producing it. A resistance change element 1 according to an embodiment of the present invention includes a bottom electrode layer 3, a top electrode layer 5 and an oxide semiconductor layer 4. The oxide semiconductor layer 4 has a first metal oxide layer 41 and a second metal oxide layer 42. The first metal oxide layer 41 is formed between the bottom electrode layer 3 and the top electrode layer 5, and in ohmic contact with the bottom electrode layer 3. The second metal oxide layer 42 is formed between the first metal oxide layer 41 and the top electrode layer 5, and in ohmic contact with the top electrode layer 5.
摘要:
[Object] To provide a method and an apparatus for manufacturing a variable resistance element by which a metal oxide layer having a desired resistivity can be precisely formed.[Solving Means] The method of manufacturing the variable resistance element according to an embodiment of the present invention includes a step of forming a first metal oxide having a first resistivity and a step of forming a second metal oxide having a second resistivity different from the first resistivity. The first metal oxide is formed on a substrate by sputtering, while sputtering a first target made of an oxide of metal, a second target made of the metal with a first power. The second metal oxide layer is formed on the first metal oxide layer by sputtering the second target with a second power different from the first power while sputtering the first target.
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.
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 chalcogenide film of the invention is formed by a sputtering within a contact hole formed in an insulating layer on a substrate, and is made of a chalcogen compound including a melting-point lowering material that lowers a melting point.
摘要:
A film forming method in which crystalline film having PZT (001) or PZT (100) as a principal component thereof is laminated on a foundation film having a (111) oriented noble metal as a principal component thereof, the method including the steps of: performing reduction treatment on a surface of the foundation film; and forming the crystalline film by an MOCVD method on the surface of the foundation film.
摘要:
A multilayer film formation method enables the formation of a multilayer including a complex oxide layer and having the desired shape of an element without performing an etching process. The method positions a first mask (30A) above a substrate (S), forms an adhesion layer (36) and a lower electrode layer (37) on the substrate with the first mask by sputtering an adhesion layer target (T1) and a lower electrode layer target (T2), positions a second mask (30B) formed from a ceramic material above the lower electrode layer, superimposes a complex oxide layer (38) on the lower electrode layer with the second mask by sputtering an oxide layer target (T3), positions a third mask (30C) above the complex oxide layer, and superimposes an upper electrode layer (39) on the complex oxide layer with the third mask by sputtering an upper electrode layer target (T4).