摘要:
A light-shielding packaging for a roll of continuous photosensitive web wound on a core having on its each end a light-shielding flange disc has at its leading end a heat-shrinkable light-shielding leader sheet having a thickness of 30 to 200 &mgr;m which shows a heat shrinkage ratio at 50° C. of lower than 1% both in the longitudinal and width directions and a heat shrinkage ratio at 100° C. in the range of 5% to 30% in the longitudinal direction and a heat shrinkage ratio at 100° C. of less than the heat shrinkage ratio in the longitudinal direction by 1% or more in the width direction. The leader sheet has a length larger than the length of the outermost convolution of the roll and a width larger than the distance between the outer face of one flange disc and the outer face of another flange disc, and each side portion of the leader sheet is light-tightly attached by heat shrinkage to the outer face of the flange disc at least at a portion adjacent to the periphery of the flange disc.
摘要:
A light-shielding packaging for a roll of continuous photosensitive web wound on a core having on its both ends a light-shielding flange disc has at its leading end a heat-shrinkable light-shielding leader sheet having a thickness of 30 to 200 &mgr;m which shows a heat shrinkage ratio of 5 to 30% in the longitudinal direction of the web at a temperature in the range of 60 to 140° C. and a heat shrinkage ratio of less than 5% in its width direction at the same temperature. The leader sheet has a length larger than the length of the outermost convolution of the roll and a width larger than the distance between the outer face of one flange disc and the outer face of another flange disc, and each side portion of the leader sheet is light-tightly attached by heat shrinkage to the outer face of the flange disc at least at a portion adjacent to the periphery of the flange disc.
摘要:
A rectangular parallelepipedic case includes four or more walls formed by bending a single plate. To produce the case, a double plate is used. The double plate is formed from plastic by extrusion, and first and second plate elements confronted with each other. Partition portions interconnect the first and second plate elements, and extend in the direction of the extrusion, to define plural hollow chambers between the first and second plate elements. The double plate is bent along bend lines substantially at a right angle. At least one of the bend lines is at least partially curved.
摘要:
A light-sensitive material package includes a light-shielding envelope containing a stack of sheet-form light-sensitive material, the light-shielding envelope having heat-seal parts on four edges. The light-sensitive material package further includes a cushioning member, which holds down all or a part of the heat-seal parts. The light-sensitive material package further includes a fitting-type box for storing the envelope, the fitting-type box being formed from an inner box and a lid. The stiffness of the heat-seal parts is at least 0.05 N·cm.
摘要:
A semiconductor device for driving a load includes a first semiconductor switching element interposed between a power supply terminal and a load, a second semiconductor switching element interposed between the load and a ground terminal, a high-side driver, a low-side driver, and a voltage regulator. The voltage regulator reduces a voltage applied to a control terminal of the second switching element, when a voltage of a load terminal of the second switching element is lower than a predetermined voltage. Then, a voltage applied between the load terminal and the ground terminal of the second switching element increases, and accordingly a voltage applied between the power supply terminal and the load terminal of the first switching element decreases.
摘要:
A semiconductor device for driving a load includes a first semiconductor switching element interposed between a power supply terminal and a load, a second semiconductor switching element interposed between the load and a ground terminal, a high-side driver, a low-side driver, and a voltage regulator. The voltage regulator reduces a voltage applied to a control terminal of the second switching element, when a voltage of a load terminal of the second switching element is lower than a predetermined voltage. Then, a voltage applied between the load terminal and the ground terminal of the second switching element increases, and accordingly a voltage applied between the power supply terminal and the load terminal of the first switching element decreases.
摘要:
A comparator, having an offset of 0.1V, compares a terminal voltage Vin1 with a clamp voltage VCL (5.1V). When an overvoltage input exceeding the VCL is entered to an input terminal, the comparator turns on a transistor Q11. The current flows across an externally provided resistor R11, the input terminal, and the transistor Q11, and flows into an output terminal of an operational amplifier. With a voltage drop at the resistor R11, the terminal voltage Vin1 starts decreasing toward an output voltage Vc of the operational amplifier.
摘要:
A fuse fusible type semiconductor device capable of reducing energy required for fusing and a production method of the semiconductor device. In a semiconductor device equipped with a heat-fusible thin film resistor, the thin film resistor formed on a substrate 1 through an insulating film 2 is made of chromium, silicon and tungsten, and films 7 and 8 of a insulator including silicon laminated on the upper surface of the fusing surface, aluminum films 5 are disposed on both sides of the fusing surface and a barrier film 4. This semiconductor device is produced by a lamination step of sequentially forming a first insulating film 2, a thin film resistor 3, a barrier film 4 and an aluminum film 5 on a substrate 1 for reducing drastically fusing energy, an etching step of removing the barrier film 4 and the aluminum film 5 from the fusing region 31 of the thin film resistor 3, and an oxide film formation step of depositing the insulator including silicon films 7 and 8.
摘要:
An object of the present invention is to provide a DRAM of a special form, a non-volatile memory cell incorporating the DRAM, and a semiconductor device which incorporates a DRAM structure and a non-volatile memory cell and where data can be written and erased with high accuracy. The semiconductor memory device has a sub bit line BLs1 to which the main bit line BL1 is connected via a selector transistor Tr1, and non-volatile memory cells M1-Nn, i.e., memory transistors whose drain electrodes are connected to the sub bit line Bls1. An a-c pulse generator applies an a-c voltage to the control gates of the non-volatile memory cells M1-Nn. The DRAM cell is formed of a capacitor element formed of parasitic capacitance of the sub bit line BLs1 and the drain electrodes of the non-volatile memory cells connected to the bit line BLs1. An arbitrary non-volatile memory cell Mk is connected with the memory node N of a DRAM cell, thereby implementing a non-volatile memory cell or non-volatile memory device having DRAM functions. The DRAM cells may operate independently of the non-volatile memory cells. Data is temporarily stored in the DRAM cell and is then transferred to the non-volatile memory cell Mk, thereby writing and erasing data with high accuracy at higher speeds, and allowing miniaturization of a memory device.
摘要:
A photographic light-sensitive material having a support having a thickness of from 160 to 225 μm is processed with an automatic developing apparatus, in which at least one of rollers of a developing part, a fixing part and a rinsing rack part of the automatic developing apparatus has a surface mainly containing a nonpolar polymer substance and having a center line surface roughness (Ra) of 20 μm or less. By using the automatic developing apparatus, dusts generated in the apparatus can be easily removed with a cleaning film.