Abstract:
PROBLEM TO BE SOLVED: To provide a technique using an anisotropic conductive adhesive (ACA) or a non-conductive adhesive (NCA) in a semi-cured initial state in order to improve non-solder flip chip techniques. SOLUTION: A wafer-level flip chip package is manufactured by steps of: applying a mixture solution 115 containing an insulating polymer resin, a curing agent, and an organic solvent onto a wafer 100 having a non-solder bump formed thereon and then drying the wafer to initialize the mixture 115 applied on the wafer 100 into a semi-cured state (B-stage); dicing the dried wafer 100 into individual chips 200; aligning the diced semiconductor chips 200 with electrodes of a substrate 300 and then applying heat and pressure to perform flip chip connection. Since an adhesive is directly coated on the wafer in a solution state and is used, shadow effects being apt to occur on a wafer surface being not flat can be prevented, and the thickness of coating is easy to control. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas diffusion layer in which a hollow portion is formed and a movement of fuel and its by-product are smoothed to improve a performance of a fuel cell, and provided its manufacturing method. SOLUTION: A hollow portion, which is made hollow in up and down directions in a gas diffusion layer 30 of a fuel battery cell of which an operation temperature is 100°C or less, is formed by using a frame with a specific pattern or by using a micro-needle 21 or a micro-lens 22, and diffusion resistance inside the gas diffusion layer is lowered, and fuel and a reactant can easily be moved through the hollow portion, and a reaction can smoothly be carried out even in a state that a fuel partial pressure is low, and the fuel cell performance can be improved. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a soft start circuit that stably operates a power supply device even at start-up by lowering the peak value of the current that appears on the output side of a power converter at start-up. SOLUTION: This invention features that the soft start circuit contains a duty ratio setting part 410 that produces and outputs the voltage Vdt to a DTC terminal by using a reference voltage Vref, a variable switch part 430 that contains a first capacitor C1 that charges the current supplied by a REF terminal and a switch Q1 that turns on and off the power by using the battery charge voltage of the first capacitor C1, and a frequency adjusting part 420 that contains a resistor R5 and a resistor R6 connected with an RT terminal in parallel and a second capacitor C2 that supplies the voltage fixed in a CT terminal to feed the current to the resistor R6 when the switch Q1 is turned off so that the current flows to the resistors R5 and R6 when the switch Q1 is turned on. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a high-resolution magnetic resonance imaging image generating method using a magnetic resonance imaging method called a generalized series parallel imaging technique; and its recording medium thereof. SOLUTION: The method for generating high-resolution magnetic resonance imaging image by using the generalized series parallel imaging method comprises the steps of: selecting a predetermined and limited low frequency band; and sampling the limited low frequency band alone of all the frequency bands at a lower rate than Nyquist criterion to acquire magnetic resonance data. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
Disclosed herein are an apparatus for and a method of bonding a nano-tip using electrochemical etching, in which a good bonding stability can be provided. The nano-tip bonding apparatus comprises a glass plate having a top surface of a certain desired area. An electrolytic solution having conductivity is placed on the top surface of the glass plate by means of surface tension. Means for moving reciprocally a base material having conductivity in opposite direction is provided. A carbon nano-tube is adhered to a pointed tip of the base material by means of an adhesive. An end portion of the carbon nano-tube is to be immersed in the electrolytic solution. A power supply is provided for applying an electric power to the electrolytic solution and the base material.
Abstract:
PROBLEM TO BE SOLVED: To provide a plasma display panel which can be manufactured from a dielectric layer of an upper plate of the plasma display panel and barrier ribs containing a dielectric layer of a lower plate, both of which are polymerized and hardened at 300°C or less without using lead in a sealing material and in which a thin low temperature glass substrate can be used and a substrate deformation during a manufacturing process is controlled and manufacturing of a large-sized panel is made possible and a manufacturing process is simple and easy, and reliability is improved with a low cost and high yield. SOLUTION: In the plasma display panel manufactured in a low temperature process at 300°C or less, at least one of a dielectric layer of an upper plate 11, barrier ribs including a dielectric layer of a lower plate 21 and a sealing material for sealing the upper plate and the lower plate is made of a compound of three dimensional network structure obtained by hardening a siloxane oligomer having an organic monomer, an organic oligomer or a polymerizable functional group. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a metro optical communication network of a wavelength division multiplexing system using a negative dispersion optical fiber and a direct modulation system. SOLUTION: The network comprises: a transmitting terminal having a plurality of transmitters of the modulation system and a multiplexer for multipexing and transmitting an optical signal; a receiving terminal having an inverse multiplexer for receiving the multiplexed signal from the multiplexer and outputting the multiplexed signal by inversely multiplexing it and a plurality of receivers to which each inversely multiplexed signal is input, respectively; and an optical fiber for connecting the multiplexer to the inverse multiplexer and having a wavelength of 1,550 nm and a negative dispersion value and a positive dispersion gradient of -1 ps/nm/km to-3.3 ps/nm/km. The distortion of the optical signal is reduced and the error is prevented by using the optical fiber of the modulation system and of which the negative dispersion value is appropriately adjusted, the transmission distance ≥300 km is performed, and further, long distance transmission of the optical signal is achieved without lowering the performance due to the FWM. Furthermore, the network is achieved with a simple structure and with economy. COPYRIGHT: (C)2005,JPO&NCIPI