Abstract:
PROBLEM TO BE SOLVED: To freely perform the high-order structural adjustment, movement and fixation of a substance, the removal of an unnecessary substance or the like by providing two pairs of counter electrodes in a reaction region and applying a predetermined electric field thereto. SOLUTION: The substrate for bioassay has a detection part 1a for the interaction between substances for constituting a pair of first counter electrodes E 11 and E 12 opposedly arranged so as to put a reaction region 2 therebetween for providing an interaction place between substances and a pair of second counter electrodes E 21 and E 22 opposedly arranged in the axial direction Y crossing the opposed axis X of a pair of the first counter electrodes E 11 and E 12 and provided with both electrodes E 21 and E 22 or one electrode E 21 (E 22 ). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a biochemical reaction apparatus capable of performing a biochemical reaction by using a substrate, the substrate for the biochemical reaction such as a DNA (deoxyribonucleic acid) chip, a hybridization method of hybridizing a nucleotide chain, and a biochemical reaction apparatus capable of performing hybridization at a high speed relative to a substrate manufacturing method for the hybridization wherein the nucleotide chain for a probe is immobilized. SOLUTION: As for the substrate 1 for bioassay, the main surface similar to an optical disk such as a CD has an annular flat shape. The substrate 1 is driven rotatively around a center hole 2, and the substrate 1 has the surface 1a on which a plurality of wells 8 are formed, which are fields for a hybridization reaction between a probe DNA (a nucleotide chain for detection) and a sample DNA (a target nucleotide chain). A transparent electrode film 4 is formed on the lower layer of the wells 8 on the substrate 1. At the hybridization time, an external electrode 18 is brought close from the upper surface 1a side of the substrate 1, and an alternating-current power is applied between the transparent electrode film 4 and the external electrode 18, to thereby give an alternating-current field in the vertical direction to the substrate 1. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an optoelectric integrated circuit device which can prevent the clock skew, even the level of integration is increased, and is capable of processing signals at high speeds. SOLUTION: An electronic element layer 4, provided with electronic elements D, an electronic wiring layer 2 provided with electronic wirings W, a light guide surface 3, a plurality of light-emitting elements L1 and so on and a plurality of photodetecting elements P1 and so on are disposed on the same substrate 1, the electronic elements D and the electronic wirings W constitute circuit blocks B1 and so on the light-emitting elements are connected to an output part, and the photodetecting elements are connected to an input part. The light emitting elements and the photodetecting elements are coupled on the same light guide surface, the photodetecting elements couple signal light pulses intensity-modulated by signals and clock light pulses intensity-modulated by a clock frequency with the same light guide surface, and the photodetecting elements receive the clock light pulse to control the clock frequency and phase of the circuit blocks.
Abstract:
PURPOSE:To easily check electric continuity of a semiconductor integrated circuit device. CONSTITUTION:From above the peripheral part or the peripheral edge part of a package 3 of a semiconductor integrated circuit device 1, contact holes 4 are formed on the surfaces of inner leads 5 corresponding with the respective outer leads 2. From the upper surface of the semiconductor integrated circuit device 1, electric continuity of leads can be easily checked.
Abstract:
PURPOSE:To obtain a semiconductor laser diode having stable characteristics by forming a non-current region to a semiconductor by implanting at least one kind of ions of He, Be, Li and B. CONSTITUTION:An N type first clad layer 2, a P type or N type active layer 3, a P type clad layer 4 and a P type low resistivity cap layer 5 are shaped on an N type base body 1 through epitaxial growth in succession. A mask 7 is formed on the cap layer 5, and boron B is implanted in depth intruding to the thickness of one part of the second clad layer 4 from the upper section of the cap layer 5 to shape a non-current injecting region 21 having high resistance. The mask is removed, and electrodes 7, 8 are applied, thus obtaining a semiconductor laser diode having stable characteristics. He, Be, Li, etc. can be used besides B as implanting ions.
Abstract:
PURPOSE:To raise the controllability and reproducibility of the lifetime of carriers and facilitate the control of temperature dependence, by providing iron, gold and/or platinum in a semiconductor layer to control the lifetime of carriers. CONSTITUTION:Iron ions are implanted at the rate of 1X10 cm into a GTO thyristor from its reverse side. The thyristor is then annealed at a temperature of 1000 deg.C under an atmosphere of nitrogen for 1 hour. A gold film is evaporated at a thickness of 600Angstrom on the reverse side and diffused at a temperature of 890 deg.C. The recovery time Trr of GCS with gold and iron diffused is almost constant independently of the diffusion time of the gold. The lifetime tau is affected by the gold in the main at low temperature but by the iron in the main at high temperature. Diffusing both iron and gold in a semiconductor device is preferable to flatten its forward voltage VF. Since plural kinds of killers are used, the control of the lifetime is facilitated.
Abstract:
PURPOSE:To reduce temperature dependency of life time by using iron as a life time killer for minority carriers, performing ion implantation to control concentration with good reproducibility and further controlling doping quantity and annealing temperature.
Abstract:
PROBLEM TO BE SOLVED: To facilitate understanding of interaction mechanisms and metabolic systems of biological materials. SOLUTION: In the method for visualizing information on biological materials such as genes or protein by automatically displaying the information on a computer display screen by use of a computer system, biological materials belonging to the same class and interaction relations among the biological materials are displayed on the same layer on the computer display screen. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To accurately and rapidly determine a base sequence of a nucleic acid molecule by measuring mass change of the nucleic acid molecule before or after cleavage treatment. SOLUTION: The prevent invention provides a method for determining a base sequence comprising at least carrying out a first step for cleaving a target nucleic molecule N while controlling a cleaving part (e.g. decomposition part by enzyme), a second step for measuring mass change of mass difference information of a nucleic acid molecule (N 1 and N 2 ) after the first step to the mass of the target nucleic acid molecule N and a third step for obtaining base information of cleaved nucleic acid molecules (n 1 and n 2 ) based on the measured data. The present invention further provides an apparatus, etc., suitable for the method. COPYRIGHT: (C)2006,JPO&NCIPI