摘要:
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.
摘要:
This invention provides a process for producing an organic polymer film whereby when using it as an interlayer insulating film in a semiconductor device, the film exhibits higher adhesiveness at its interfaces where other semiconductor materials are in contact with the lower and the upper surface of the film while an effective dielectric constant in the whole organic polymer film can be further reduced. Specifically, a plurality of organic monomers vaporized is sprayed onto a heated substrate surface via plasma generated in a reaction chamber to form a copolymer film comprising frame composed of a plurality of organic monomer units. During the process, relative ratio between the feeding rate of the organic monomer molecules is varied along the progress of the film growth to continuously grow an interlayer insulating film in which films having good mechanical strength and adhesiveness with rich content of siloxane-structure are set near the interfaces (91a,c, 92a,c or 93a,c) and a film having a lower bulk density are arranged as an intermediate layer (91b, 92b or 93b) sandwiched therebetween.
摘要:
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.
摘要:
A water-based ink for stencil printing, wherein the slope (S) of a graph generated by plotting spread meter values measured at 25° C. [x axis: natural logarithm of the time elapsed T (seconds), y axis: spread diameter D (mm)] is within a range from 1.0 to 4.5; a water-based ink for stencil printing that includes a water-soluble polymer thickener with a cross-linked structure, and a water-soluble polymer thickener with a straight-chain structure; and stencil printing methods that use these inks.
摘要:
A polymerizable polyoxyalkylene monoalkyl ether derivative prepared by using a polyoxyalklene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1/S0≦0.15, wherein S1 represents the area under a portion of the chromatogram from the start of elution to the earliest elution time when the intensity of the refractive index has a value of L/3, L representing the shortest distance between the greatest maximum point of the intensity of the refractive index and the base line and S0 represents the area under a portion of the chromatogram from the start of elution to an elution time when the intensity of the refractive index has the greatest maximum value; a process for producing the above ether comprising adjusting the content of water in a reactor, which is used in addition polymerization of alkylene oxides with addition to a monohydric alcohol, so as to satisfy an equation: Wi×(Cf−Ci)/V≦10, wherein the content of water in the reactor is obtained by placing a solvent having a content of water Ci (ppm) in an amount Wi (g) in the reactor having an inner volume V (ml), stirring the solvent to clean the reactor, removing the solvent from the reactor and obtaining a content of water Cf (ppm) in the removed solvent.
摘要:
There is disclosed a stencil printing method carried out by employing a stencil printing machine comprising: a drum which is rotatable and has a outer peripheral wall formed by an ink impermeable member and in which a stencil sheet is mounted on a surface of the outer peripheral wall; an ink supply device which has an ink supply unit provided on the outer peripheral wall of the drum and supplies ink on the surface of the outer peripheral wall from the ink supply unit; and a pressure roller which presses a fed print medium onto the outer peripheral wall; the method comprising: a step of mounting a stencil sheet on the drum; a step of plate-making the stencil sheet; and a step of transferring a water-based ink to a print medium by making the water-based ink pass through perforations of the stencil sheet.
摘要:
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.
摘要:
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.
摘要:
A semiconductor disk wherein a flash memory into which data is rewritten in block unit is employed as a storage medium, the semiconductor disk including a data memory in which file data are stored, a substitutive memory which substitutes for blocks of errors in the data memory, an error memory in which error information of the data memory are stored, and a memory controller which reads data out of, writes data into and erases data from the data memory, the substitutive memory and the error memory. Since the write errors of the flash memory can be remedied, the service life of the semiconductor disk can be increased.
摘要:
A fabrication method of a semiconductor device with a capacitor is provided, which prevents leakage current from increasing and dielectric breakdown resistance from decreasing during a CVD or dry etching process for forming an insulating film to cover the capacitor. In this method, a lower electrode of a capacitor is formed on a first insulating film. The first insulating film is typically formed on or over a semiconductor substrate. A dielectric film of the capacitor is formed on the lower electrode to be overlapped therewith. An upper electrode of the capacitor is formed on the dielectric film to be overlapped therewith. A second insulating film is formed to cover the capacitor by a thermal CVD process in an atmosphere containing no plasma at a substrate temperature in which hydrogen is prevented from being activated due to heat. A source material of the second insulating film has a property that no hydrogen is generated in the atmosphere through decomposition of the source material during the thermal CVD process.