摘要:
A proton conducting membrane comprising, as a main component, a ceramic structure in which an oxygen atom of a metal oxide is bonded through the oxygen atom with at least one group derived an oxygen acid selected from —B(O)3—, —S(═O)2(O)2—, —P(═O)(O)3—, —C(═O)(O)2—, and —N(O)3—, wherein the metal oxide and said at least one group derived from the oxygen acid share the oxygen atom, the proton conducting membrane being made by a sol-gel reaction of the oxygen acid or its precursor and a precursor of the metal oxide in order to obtain a sol-gel reaction product, followed by heating of the sol-gel reaction product at a temperature in a range of 100° C. to 600° C., the oxygen acid or its precursor being selected from a boric acid, a sulfuric acid, a phosphoric acid, a carbonic acid, a nitric acid, and precursors thereof. Thus, a novel proton conducting membrane is provided.
摘要:
A proton conducting membrane comprising, as a main component, a ceramic structure in which an oxygen atom of a metal oxide is bonded through the oxygen atom with at least one group derived an oxygen acid selected from —B(O)3—, —S(═O)2(O)2—, —P(═O)(O)3—, —C(═O)(O)2—, and —N(O)3—, wherein the metal oxide and said at least one group derived from the oxygen acid share the oxygen atom, the proton conducting membrane being made by a sol-gel reaction of the oxygen acid or its precursor and a precursor of the metal oxide in order to obtain a sol-gel reaction product, followed by heating of the sol-gel reaction product at a temperature in a range of 100° C. to 600° C., the oxygen acid or its precursor being selected from a boric acid, a sulfuric acid, a phosphoric acid, a carbonic acid, a nitric acid, and precursors thereof. Thus, a novel proton conducting membrane is provided.
摘要:
Provided is a method for producing, in a simple manner, a general-purpose dielectric insulating thin film that has a varying dielectric constant and accepts an accurate film thickness control and a control of the composition, the structure and the thickness thereof. The process includes a step (A) of making a substrate having a hydroxyl group in its surface or having a hydroxyl group introduced into its surface, adsorb a metal compound having a functional group capable of reacting with a hydroxyl group for condensation and capable of forming a hydroxyl group through hydrolysis, a step (B) of removing the excessive metal compound from the substrate surface, a step (C) of hydrolyzing the metal compound to form a metal oxide layer, and a step (D) of treating the metal oxide layer according to any one treating method selected from the group consisting of oxygen plasma treatment, ozone oxidation treatment, firing treatment and rapid thermal annealing treatment to thereby obtain a dielectric insulating thin film.
摘要:
Provided is a method for producing, in a simple manner, a general-purpose dielectric insulating thin film that has a varying dielectric constant and accepts an accurate film thickness control and a control of the composition, the structure and the thickness thereof. The process includes a step (A) of making a substrate having a hydroxyl group in its surface or having a hydroxyl group introduced into its surface, adsorb a metal compound having a functional group capable of reacting with a hydroxyl group for condensation and capable of forming a hydroxyl group through hydrolysis, a step (B) of removing the excessive metal compound from the substrate surface, a step (C) of hydrolyzing the metal compound to form a metal oxide layer, and a step (D) of treating the metal oxide layer according to any one treating method selected from the group consisting of oxygen plasma treatment, ozone oxidation treatment, firing treatment and rapid thermal annealing treatment to thereby obtain a dielectric insulating thin film.
摘要:
A high-purity spherical silicon carbide powder is obtained by thermally decomposing a spherical cured silicone powder under a non-oxidizing atmosphere.
摘要:
An integrated circuit includes multiple memory circuits including memory cell arrays different in size, a BIST circuit which has a cell sequential transition test processor and which outputs a test cell address, a transition direction specification signal and an active signal. The integrated circuit has adjustment circuits which are provided respectively for the memory circuits and which replace the test cell address with the test cell address in a memory cell array area, or which convert the active signal into a signal indicating non-execution when the test cell address outputted from the BIST circuit corresponds to a cell in a virtual cell array being in an area outside the memory cell array.