Abstract: A program executed on a computer including storage, processing, output, and input units, the storage unit storing test-difficulty-calculation-elements-database, test-menu-database, and test-flow-database, for each test-menu-record, the program causing the processing unit to execute: calculating test-difficulty for each test-menu-record based on test-difficulty-calculation-formula by using at least one among pieces of information indicative of relationship with netlist, the number of package/test pins, expected operational clock frequency, process technology information, power consumption, and tester storage space; identifying all relationship between DFT scheme and priority, and causing the storage unit to store information indicative of the relationship between the DFT scheme and priority into the test-flow-database; and sorting the DFT scheme in an order of the priority based on the relationship between the DFT scheme and priority, causing the storage unit to store the DFT scheme as a test flow, and causing

Abstract: A fuel cell catalyst containing platinum, zinc, and at least one of nickel and iron.

Abstract: A program executed on a computer including storage, processing, output, and input units, the storage unit storing test-difficulty-calculation-elements-database, test-menu-database, and test-flow-database, for each test-menu-record, the program causing the processing unit to execute: calculating test-difficulty for each test-menu-record based on test-difficulty-calculation-formula by using at least one among pieces of information indicative of relationship with netlist, the number of package/test pins, expected operational clock frequency, process technology information, power consumption, and tester storage space; identifying all relationship between DFT scheme and priority, and causing the storage unit to store information indicative of the relationship between the DFT scheme and priority into the test-flow-database; and sorting the DFT scheme in an order of the priority based on the relationship between the DFT scheme and priority, causing the storage unit to store the DFT scheme as a test flow, and causing

Abstract: An object of the invention is to drastically reduce the area overhead in a semiconductor integrated circuit incorporating a test configuration that uses a partially rotational scan circuit. To achieve this, in the semiconductor integrated circuit incorporating the test configuration that comprises a combinational circuit (3) and a scan chain (2) constructed by connecting a plurality of scan flip-flops (5) in a chain, the scan chain (2) is divided into a plurality of sub scan-chains (20a to 20n) each of which has a partially rotational scan (PRS) function and a test response compaction (MISR) function. By performing a scan test in a plurality of steps while changing the combination of the sub scan-chains to be set as PRS and the sub scan-chains to be set as MISR, the test can be performed without having to provide a test response compactor separately from the scan chain, and thus the area overhead can be reduced.

Abstract: An improved metal alloy composition for a fuel cell catalyst containing platinum, manganese, and cobalt.

Abstract: The present invention is directed to a composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum, nickel, and iron, wherein (i) the concentration of platinum is greater than 50 atomic percent, the concentration of nickel is less than 15 atomic percent and/or the concentration of iron is greater than 30 atomic percent, or (ii) the concentration of platinum is greater than 70 atomic percent and less than about 90 atomic percent. The present invention is further directed to a process for preparing such a catalyst composition from a catalyst precursor composition comprising platinum, nickel, and iron, wherein the concentration of platinum therein is less than 50 atomic percent.

Abstract: The purpose of the invention is to determine an optimum initial value to be input to a test pattern generator in order to achieve efficient testing of an integrated circuit. To achieve this purpose, a minimum test length is obtained by performing a fault simulation and a reverse-order fault simulation using an arbitrarily given initial value; the next initial value that is likely to yield a test length shorter than the minimum test length is computed and a fault simulation is performed using the thus computed initial value; and the next initial value that is likely to yield a test length shorter than that test length is computed and a fault simulation is performed using the thus computed initial value. By repeating this process, an initial value that yields the shortest test length is obtained.

Abstract: An object of the invention is to drastically reduce the area overhead in a semiconductor integrated circuit incorporating a test configuration that uses a partially rotational scan circuit. To achieve this, in the semiconductor integrated circuit incorporating the test configuration that comprises a combinational circuit (3) and a scan chain (2) constructed by connecting a plurality of scan flip-flops (5) in a chain, the scan chain (2) is divided into a plurality of sub scan-chains (20a to 20n) each of which has a partially rotational scan (PRS) function and a test response compaction (MISR) function. By performing a scan test in a plurality of steps while changing the combination of the sub scan-chains to be set as PRS and the sub scan-chains to be set as MISR, the test can be performed without having to provide a test response compactor separately from the scan chain, and thus the area overhead can be reduced.

Abstract: An improved metal alloy fuel cell electrocatalyst composition containing platinum, rhodium, molybdenum, and nickel iron or a combination thereof.

Abstract: A fuel cell provides a high output at a high current density. The fuel cell has an anode electrode and a cathode electrode comprising a gas diffusion layer, a water-repellent layer disposed on the gas diffusion layer and containing a carbon material and polytetrafluoroethylene, and an electrode catalyst layer disposed on the water-repellent layer and containing a carbon material carrying a catalyst. The electrode catalyst layer has maximum and minimum thicknesses that differ from each other by less than 30 ?m. The electrode catalyst layer has cracks whose area is less than 10% of a total area of the electrode catalyst layer.

Abstract: A fuel cell catalyst containing platinum, zinc, and at least one of nickel and iron.

Abstract: An improved metal alloy composition for a fuel cell catalyst containing platinum, nickel, and manganese or iron.

Abstract: An improved metal alloy composition for a fuel call catalyst containing platinum, manganese, and cobalt.

Abstract: An electrode base material is held by electrostatic attraction when a voltage from a DC power source is applied to electrodes for electrostatic attraction. A paste is applied to the electrode base material, and then the paste is dried to form the water-repellent layer. Subsequently, another paste is applied to the water-repellent layer, and then the paste is dried. Accordingly, the substantially flat electrode catalyst layer including an extremely small number of depressions is formed. The electrode of the fuel cell produced as described above can be used as an anode or a cathode.

Abstract: An electrode base material is held by electrostatic attraction when a voltage from a DC power source is applied to electrodes for electrostatic attraction. A paste is applied to the electrode base material, and then the paste is dried to form the water-repellent layer. Subsequently, another paste is applied to the water-repellent layer, and then the paste is dried. Accordingly, the substantially flat electrode catalyst layer including an extremely small number of depressions is formed. The electrode of the fuel cell produced as described above can be used as an anode or a cathode.

Abstract: The purpose of the invention is to determine an optimum initial value to be input to a test pattern generator in order to achieve efficient testing of an integrated circuit. To achieve this purpose, a minimum test length is obtained by performing a fault simulation and a reverse-order fault simulation using an arbitrarily given initial value; the next initial value that is likely to yield a test length shorter than the minimum test length is computed and a fault simulation is performed using the thus computed initial value; and the next initial value that is likely to yield a test length shorter than that test length is computed and a fault simulation is performed using the thus computed initial value. By repeating this process, an initial value that yields the shortest test length is obtained.

Abstract: An improved metal alloy fuel cell electrocatalyst composition containing platinum, rhodium, molybdenum, and nickel iron or a combination thereof.

Abstract: An electrode base material is held by electrostatic attraction when a voltage from a DC power source is applied to electrodes for electrostatic attraction. A paste is applied to the electrode base material, and then the paste is dried to form the water-repellent layer. Subsequently, another paste is applied to the water-repellent layer, and then the paste is dried. Accordingly, the substantially flat electrode catalyst layer including an extremely small number of depressions is formed. The electrode of the fuel cell produced as described above can be used as an anode or a cathode.

Abstract: A fuel cell provides a high output at a high current density. The fuel cell has an anode electrode and a cathode electrode comprising a gas diffusion layer, a water-repellent layer disposed on the gas diffusion layer and containing a carbon material and polytetrafluoroethylene, and an electrode catalyst layer disposed on the water-repellent layer and containing a carbon material carrying a catalyst. The electrode catalyst layer has maximum and minimum thicknesses that differ from each other by less than 30 &mgr;m. The electrode catalyst layer has cracks whose area is less than 10% of a total area of the electrode catalyst layer.

Abstract: This invention provides an electrode for a fuel cell comprising a catalyst layer obtained by a first step of homogeneously mixing carbon supporting platinum which is an electrode catalyst, an alcohol solution of an ion conductive component which is a solid polymer electrolytic membrane component, and an organic solvent, by means of a stirrer having a grinding effect to produce electrode paste in which the carbon is highly dispersed; a second step of stirring said electrode paste by means of a three-dimensional vibrating stirrer in order to obtain highly structured carbon on which platinum is supported; and a third step of coating a gas diffusion electrode material and/or a solid polymer electrolytic membrane with the electrode paste in which the carbon is highly structured, followed by removal of the organic solvent.