PURPOSE:To raise the working efficiency of a memory, by separating a scan input of a scan logical test from its output, and storing the testing data of regular logic and scan logic in the same storage device. CONSTITUTION:At first, an input of a scan testing data is separated from its output. Accordingly, since an input or an output of a signal which is used for scan-testing can be fixed, it is un...

PURPOSE:To manufacture high-resolution magnetic heads easily by making two gaps, formed of a magnetic resistance effect element and two shield magnetic bodies consisting of high-permeability magnetic bodies provided on both sides of the above element with interposed non-magnetic layers. CONSTITUTION:On both side of magnetic resistance effect (MR) element 1 such as an Fe-Ni alloy, shield magnetic b...

A system for detecting data from and recording data on a recording media whereby a single clocking signal generator is utilized for generating the clocking signal both during the recording of data on and the reading of data from the recording media.

A method of testing bubble memory devices each having a plurality of minor loops, the method being useful for detecting defective minor loops in a short time. In this method, data to be written in and/or data to be read out is divided into and stored as a plurality of blocks, the bubble memory device is sequentially operated under driving magnetic field and/or bias magnetic field conditions differ...

PURPOSE:To manufacture a dynamic RAM of low voltage and large capacity, by providing a boosting means by which high level voltage of a word line connected to a memory cell consisting of 1 transistor and 1 capacitor is made higher than supply voltage. CONSTITUTION:The potential of digit lines A, B, which has been sensed by a sense amplifier 50 is fed back to a digit boosting circuit 51, and the pot...

A modified polyolefin resin and a composition containing therein such modified polyolefin, having excellent adhesive property and heat-sealing property at the time of high speed forming operations, the modified polyolefin resin consisting essentially of: a copolymer of ethylene and alpha -olefin having 4 or more carbon atoms, the copolymer having a density in a range of from 0.890 to 0.910 g/cm3,...