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1. 发明专利

JPH11175577A VIRTUAL MANUFACTURE SUPPORT DESIGN METHOD AND VIRTUAL MANUFACTURE SUPPORT DESIGN SYSTEM 失效
公开(公告)号：JPH11175577A
公开(公告)日：1999-07-02
申请号：JP33991197
申请日：1997-12-10
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , NOMOTO TAZU , IWAI HIROKI , NAGAMI HAYASHI
IPC分类号： B23P21/00 , G05B19/418 , G06F17/50 , G06Q50/00 , G06Q50/04 , H05K3/34 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To design to satisfy desired performance, quality and reliability by designing so that the quality of mass-produced products which are analyzed and evaluated may satisfy a desired quality, performing simulation on a computer. SOLUTION: A fault analysis revision system 100 evaluates whether or not a designated mounting product satisfies specifications in total performance and qualities with margin. A tolerance database 52 stores dimension tolerance of a part and mounting tolerance after the part is mounted. A fraction defective simulator 105 evaluates whether or not it satisfies specifications in total fraction defective. An optimum value deciding part 110 collects part and base board shape data generation 115 based on a part and base board shape data database 70 from a CAD calculation system 1, adds other data which are inputted to the database 70 and stores a final simulation result that accomplishes target fraction defective. Mass-produced products are designed so that the qualities of the mass-produced products which are analyzed and evaluated in this way may satisfy desired qualities.

2. 发明专利

JPH1040289A PRODUCT QUALITY IMPROVEMENT SUPPORT SYSTEM 失效
公开(公告)号：JPH1040289A
公开(公告)日：1998-02-13
申请号：JP19176596
申请日：1996-07-22
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , NOMOTO TAZU , SATO SHIGERU , MATSUDA AKIHIRO
IPC分类号： G05B19/418 , B65G61/00 , G06F19/00 , G06Q50/00 , G06Q50/04 , G06F17/60
摘要： PROBLEM TO BE SOLVED: Let even an inexperienced operator easily know a process or a parameter causative of defect by comparing a standard deviation obtained from each intersection with the statistical evaluation amount of a general intersection, evaluating a correlation between the defect and the parameter and teaching the process and parameter causative of defect. SOLUTION: A process tolerance contribution rate calculating part 70 calculates for example, a rate causative of dispersion on parts dimensions for each process, in view of the values of a worst value deviation, a total standard deviation, etc., in product specification which are obtained by a worst value deviation/total standard deviation acquisition part 60. Then, a defective process teaching part 75 teaches which process is concerned with the generation of defective cause. Then, a parameter design calculating part 80 calculates which is concerned with defect in the parameters concerning fabrication, and a design/ fabrication defective factor improvement condition teaching part 85 teaches a process and a parameter estimated to be concerned with the defective process. Thus, the product quality can be improved.

3. 发明专利

JPH0644329A AUTOMATIC DRAWING DESIGN/MANUFACTURE INFORMATION PROCESSING SYSTEM 失效
公开(公告)号：JPH0644329A
公开(公告)日：1994-02-18
申请号：JP9744593
申请日：1993-04-23
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , TEZUKA YOJIRO , MORI TERUO , NISHIYAMA YOSHITOKU , OHASHI TOSHIJIRO
IPC分类号： G06F17/50 , G06F15/60
摘要： PURPOSE:To simultaneously process information from a communication line and information stored in a magneto-optical medium by separating the character graphic information of drawings, documents and catalogs or the like, reading them with an image scanner, separating the information of characters and line segments and performing binary signal processing to them. CONSTITUTION:A handwritten circuit diagram 20, or image data 31 such as photographs and a document file 35 are read by an image scanner 21, converted to raster vectors and inputted to a graphic.composite information input device 25. The signals of communication line information 37 impressed from a FAX are binarized, compressed by a run length system and inputted to a parallel transmission interface 150. Information 33 made into an electronic file such as a magneto-optical file is directly inputted to the parallel transmission interface 150 and inputted through a parallel communication means 160 to the graphic/composite information input device 25. Then, raster vector conversion is performed to these kinds of information, and the input data of a CAD system are generated.

4. 发明专利

JPH0294453A WIRE BONDING APPARATUS 失效
公开(公告)号：JPH0294453A
公开(公告)日：1990-04-05
申请号：JP24407488
申请日：1988-09-30
申请人： HITACHI LTD
发明人： URAYAMA SATOSHI , KOJIMA TOSAKU
IPC分类号： H01L21/603 , H01L21/60 , H01L21/607
摘要： PURPOSE:To prevent a coat film of a coated wire from being molten excessively during formation of a ball at the tip of the wire by forming the ball at the tip of the coated wire while passing flow of air through a bore provided in a bonding tool for receiving the wire and exhausting it from the front end of the tool. CONSTITUTION:A wire bonding tool 3 forms a ball at the tip of a wire so that the wire is bonded by thermocompression or ultrasonic thermocompression. The tool 3 has a bore 5 through which a coated wire 1 is passed. Air is supplied into the bore 5 from an air supply section 7 and exhausted from the front end of the tool. The tip of the wire 1 heated during the formation of the ball by electric discharge is cooled by the blast of air and, therefore, the coat film of the wire is prevented from being molten excessively during the formation of the ball.

5. 发明专利

JPH01264234A BONDING APPARATUS OF COATED THIN WIRE 失效
公开(公告)号：JPH01264234A
公开(公告)日：1989-10-20
申请号：JP9140488
申请日：1988-04-15
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , KAWANA TAKESHI , URAYAMA SATOSHI , OKAMOTO MICHIO
IPC分类号： H01L21/607 , H01L21/60
摘要： PURPOSE:To surely execute a bonding operation by pressure-bonding an electrode face plated with a metal to a coated thin wire by a method wherein a second bonding connection part whose coating has been removed is pressurized by using a capillary to which ultrasonic waves have been applied and is ultrasonic-welded to the mating electrode face. CONSTITUTION:A hot-air nozzle 14 is swung by a rotary actuator 17; a coated thin wire 1 is pierced through a capillary 11 and first bonded to an IC chip 4; after that, the capillary 11 is raised and stopped at a height corresponding to a prescribed length of a wiring operation; while the coated thin wire 1 is gripped with a wire clamp 28, the hot-air nozzle 14 is swung to a position facing a second bonding part 7; a coating at the connection part 7 and its peripheral part is removed. Then, the capillary 11 is lowered; it is stopped at the second bonding connection part 7; it is lowered furthermore while the coated thin wire 1 has been gripped; at the same time, X-Y tables 29, 30 are shifted and stopped; the second bonding connection part 7 is pressurized with the capillary 11 to which ultrasonic waves have been applied; this part is ultrasonic- welded to a bonding pad 9 on the side of a lead. Accordingly, a bonding operation can be executed surely.

6. 发明专利

JPS63133475A WIRE BONDER OF INSULATED WIRE 失效
公开(公告)号：JPS63133475A
公开(公告)日：1988-06-06
申请号：JP27859786
申请日：1986-11-25
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , KAWANA TAKESHI , URAYAMA SATOSHI
IPC分类号： H01R43/02 , H05K3/34

7. 发明专利

JPS63114138A BONDING METHOD FOR WIRE LAMINATED LAYER 失效
公开(公告)号：JPS63114138A
公开(公告)日：1988-05-19
申请号：JP25823286
申请日：1986-10-31
申请人： HITACHI LTD
发明人： HASEGAWA HIROSHI , SUGIMOTO KOICHI , YANO TAKESHI , NEZU TOSHITADA , TANI MITSUKIYO , KOJIMA TOSAKU
IPC分类号： H01L21/60 , B23K20/00 , H01L21/607 , H01L23/538 , H01R4/02
摘要： PURPOSE:To bond predetermined number of wirings even if a connecting pad is extremely reduced upon enhancement of a density by bonding repairing wirings, then stacking next repairing wirings on the previously bonded wirings and bonding them. CONSTITUTION:When a connecting pad does not have a sufficient size to bond a plurality of repairing wirings aligned on a flat surface, first repairing wirings 2 are bonded on the pad 1, and second and third repairing wirings 3, 4 are stacked thereon to be connected. Thus, when repairing wirings 2 are wired on a multilayer module substrate 15, the wirings 3 can be stacked to be connected to the pad 1 having a limited size. Thus, a plurality of predetermined repairing wirings 3 can be connected to cope with a circuit revision.

8. 发明专利

JPS62295206A MAGNETIC HEAD 失效
公开(公告)号：JPS62295206A
公开(公告)日：1987-12-22
申请号：JP13806286
申请日：1986-06-16
申请人： HITACHI LTD
发明人： KAWANA TAKESHI , KOJIMA TOSAKU
IPC分类号： G11B5/17
摘要： PURPOSE:To obtain a magnetic head whose magnetic head winding work efficiency is high, by forming a coil winding from a flexible plate on which a coil conductor pattern has been formed, a hard printed board which has been connected to both ends of the flexible plate, and a covered thin wire which has been connected between each hard printed board. CONSTITUTION:A pat part 12 is provided on a dividable hard printed board 10, a conductor pattern of a coil 14 is connected, and connected to a pat part 13 of a hard printed board 11 of the other end. At the time of connecting a flexible printed board 15 to the hard printed board 10, it is inserted so as to be fitted into a pierced hole 40 of the pat part 12, and the pierced hole 40 of a pat part 16. An engaged part of the pierced hole 40 and the coil terminal 14 is connected by soldering. The hard printed boards 10, 11 are divided, and wound to a winding window 5 of a magnetic head. The pad part 16 of the hard printed board 10 is provided, a covered thin wire 24 is connected by ultrasonic bonding, etc., and connected to the pat part 13 of the hard printed board 11 of the other end. Thereafter, in the same way, the covered thin wire 24 is connected successively by ultrasonic bonding, etc.

9. 发明专利

JPS61144549A METHOD AND DEVICE FOR MEASURING LUBRICATING EFFECT OF MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPS61144549A
公开(公告)日：1986-07-02
申请号：JP26614384
申请日：1984-12-19
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU
IPC分类号： G11B5/84 , G01N19/02
摘要： PURPOSE:To execute measurement in a short time without damaging a magnetic recording medium, especially, a magnetic tape by setting vertically a magnetic recording medium to a fixed cylinder and making it execute a reciprocating motion, measuring a coefficient of friction, and deriving the number of times of slide until the coefficient of friction is stabilized. CONSTITUTION:A fixed cylinder 21 is provided on the top part of a support 20. To this cylinder 21, a magnetic tape 22 is set vertically, a load 23 is set to one end, and the other end is fixed to a load cell 24. Also, the load cell 24 is moved to the right and left on a rack 27 by a driving part 25, and a tension T1 of one side and a tension T2 of the other side are applied to the magnetic tape 22. These tensions T1, T2 are amplified, a difference of measured values of the tensions T1, T2 is calculated by a processor 32, and a coefficient of friction is derived by a public expression. Its coefficient of friction decreases or increases from the first of slide to some number of times of sliding, and attains a constant value. A lubricating effect is measured by the number of times of slide until the coefficient of friction goes to stable. Accordingly, it is sufficient to only slide a magnetic recording medium (magnetic tape), therefore, the lubricating effect can be measured without damaging said medium.

10. 发明专利

JP2000242670A DESIGN METHOD COPING WITH CUSTOMER SATISFACTION AND DESIGN DEVICE COPING WITH CUSTOMER SATISFACTION 失效
公开(公告)号：JP2000242670A
公开(公告)日：2000-09-08
申请号：JP4152599
申请日：1999-02-19
申请人： HITACHI LTD
发明人： KOJIMA TOSAKU , MATOBA HIDEAKI , NAGAMI HAYASHI
IPC分类号： G06F17/50
摘要： PROBLEM TO BE SOLVED: To simultaneously satisfy the improvement of customer satisfaction for products and short-term product development and to perform optimum design. SOLUTION: The sensitivity of the product is evaluated beforehand and an evaluated result value is made into a data base 36. A sensitivity/physical performance specification part 37 stores, for each product, the sensitivity to be the factor of affecting the evaluated result value of the product, a product element to be the cause of leading the sensitivity and the physical characteristics which are related with each other. Also, the correlation between the sensitivity relating to the product and the physical quantity of the product is checked beforehand and made into the data base 35. Then, at the time of designing the product, a retrieval means 4 retrieves the product element answering a design concept and the physical characteristics from the sensitivity/physical performance specification part 37, refers to the data base 35, decides the rough shape of the product from engineering knowledge and performs detailed design.

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