摘要:
A cache memory built in a processor comprising a plurality of independent memory blocks, pass/fail information memory unit memorizing a presence/absence of a failure occurring in each of the memory blocks, and a screening control function substituting a sound memory block for a failed memory block based on a memory content in the pass/fail information memory unit.
摘要:
A cache memory built in a processor comprising a plurality of independent memory blocks, pass/fail information memory unit memorizing a presence/absence of a failure occurring in each of the memory blocks, and a screening control function substituting a sound memory block for a failed memory block based on a memory content in the pass/fail information memory unit.
摘要:
A cache memory built in a processor comprising a plurality of independent memory blocks, pass/fail information memory unit memorizing a presence/absence of a failure occurring in each of the memory blocks, and a screening control function substituting a sound memory block for a failed memory block based on a memory content in the pass/fail information memory unit.
摘要:
A cache memory built in a processor comprising a plurality of independent memory blocks, pass/fail information memory unit memorizing a presence/absence of a failure occurring in each of the memory blocks, and a screening control function substituting a sound memory block for a failed memory block based on a memory content in the pass/fail information memory unit.
摘要:
A chromium-free treating liquid and treatment methods which are for imparting to a zinc or zinc alloy deposit a coating film which is highly corrosion-resistant, has a uniform appearance free from sag stains/puddle stains, has no failure concerning thickness unevenness, and has satisfactory adhesion. The surface-treating aqueous solution, which is for forming a corrosion-resistant coating film over a zinc or zinc alloy deposit, is characterized by comprising (a) an alkali metal silicate (M2O.nSiO2 (wherein M represents an alkali metal and n indicates SiO2/M2O molar ratio)), (b) a water-soluble or water-dispersible silane coupling agent, and (c) a water-soluble or water-dispersible glycidyl ether compound. One of the surface treatment methods for forming a highly corrosion-resistant coating film over a zinc or zinc alloy deposit includes bringing the surface of the zinc or zinc alloy deposit into contact with the surface-treating aqueous solution. The surface-treating aqueous solution is applicable also to the surface of a chemical conversion coating film formed on a zinc or zinc alloy deposit and free from hexavalent chromium or from chromium in any form. Namely, another surface treatment method for forming a highly corrosion-resistant coating film over a zinc or zinc alloy deposit comprises bringing the surface of a chemical conversion coating film formed on a zinc or zinc alloy deposit into contact with the surface-treating aqueous solution. Furthermore provided is a highly corrosion-resistant coating film formed by bringing the solution into contact with the surface of a zinc or zinc alloy deposit or with the surface of a chemical conversion coating film formed on a zinc or zinc alloy deposit.
摘要:
The invention provides an electroplating bath for forming a zinc-nickel alloy coating consisting essentially of water, about 1 to 70 grams/liter of zinc, about 0.6 to 118 grams per liter of nickel, at least one compound from the group consisting of (i) aliphatic amines in an amount not more than 16 grams/liter, (ii) polymers of aliphatic amines in an amount not more than about 20 grams per liter and (iii) a compound selected from the group consisting of hydroxyaliphatic carboxylic acids and salts thereof in an amount from 0 to 2 mols/liter, said bath having a pH of more than 11. The invention also provides an electroplating method for forming a chromate coating on a zinc-nickel alloy coating electrolytically deposited from the electroplating bath defined in the preceding sentence on electrically conductive metalics matrix material, and forming a chromate coating on the zinc-nickel alloy coating by means of a chromate treatment.
摘要:
A cache memory unit connecting to a main memory system having a cache memory area in which, if memory data that the main memory system has is registered therewith, the registered memory data is accessed by a memory access instruction that accesses the main memory system and a local memory area with which local data to be used by the processing section is registered and in which the registered local data is accessed by a local memory access instruction, which is different from the memory access instruction.
摘要:
The present invention relates to a soldering paste flux, and the soldering paste flux includes (A) a thermosetting prepolymer, (B) a polyfunctional epoxy monomer or oligomer having three or more functional groups in a molecule, (C) a carboxylic acid having a melting point of 80 to 170° C., and (D) a cyanate ester having two or more cyanato groups in a molecule.
摘要:
In a separating device that separates a processor configured to perform process by using data recorded in a cache memory connected to the processor, a stopping unit, upon receiving a processor separation request, stops the processor from performing a new process; and a separation executing unit, upon completion of process being performed by the processor, separates the processor after invalidating the data recorded in the cache memory.
摘要:
The present invention relates to a solder paste composition used for precoating an electrode surface with solder. A first solder paste composition is contains a solder powder and a flux, and a metallic powder made by metallic species different from metallic species constituting the solder powder and metallic species constituting the electrode surface in a rate of 0.1% by weight or more and 20% by weight or less based on a total amount of the solder powder. A second solder paste composition contains a deposition solder material which deposits the solder by heating and a flux, and a metallic powder comprising metallic species different from metallic species constituting a metallic component in the deposition solder material and metallic species constituting the electrode surface in a rate of 0.1% by weight or more and 20% by weight or less based on a total amount of the metallic component in the deposition solder material. When these solder paste compositions are evenly applied onto an electronic circuit substrate for precoating, such a solder that does not generate any swollen portion, solder-lacking portion and variability in a height thereof can be formed irrespective of a shape of a pad.