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1. 发明专利

MY8400253A CONTROL CIRCUIT FOR A POSITIONING DEVICE USING A DC MOTOR 未知
公开(公告)号：MY8400253A
公开(公告)日：1984-12-31
申请号：MY8400253
申请日：1984-12-30
申请人： HITACHI LTD
发明人： KYOMASU RYUICHI , HAWASHIMA SHUICHI , SUZUMURA YOSHIKAZU
IPC分类号： G05D3/12 , G05B19/23 , G05D3/20 , H02P7/06 , G05B5/01
摘要： Disclosed is a control circuit of a positioning device for moving a member to be controlled to a predetermined position by using a d-c motor, in which there are used arithmetic circuit means for detecting a difference signal, to be converted to a driving signal of the motor, between the position detecting signal of the member and the reference signal of the predetermined position, and correcting circuit means coupled to the arithmetic circuit means for causing the difference signal to be small, whereby the motor is free from the hunting phenomenon.

2. 发明专利

DE2932395A1 未知
公开(公告)号：DE2932395A1
公开(公告)日：1980-02-28
申请号：DE2932395
申请日：1979-08-09
申请人： HITACHI LTD
发明人： KYOMASU RYUICHI , HANASHIMA SHUICHI , SUZUMURA YOSHIKAZU
IPC分类号： G05D3/12 , G05B19/23 , G05D3/20 , H02P7/06 , G05D3/00
摘要： Disclosed is a control circuit of a positioning device for moving a member to be controlled to a predetermined position by using a d-c motor, in which there are used arithmetic circuit means for detecting a difference signal, to be converted to a driving signal of the motor, between the position detecting signal of the member and the reference signal of the predetermined position, and correcting circuit means coupled to the arithmetic circuit means for causing the difference signal to be small, whereby the motor is free from the hunting phenomenon.

3. 发明专利

MY8500832A RE BONDING APPARATUS 未知
公开(公告)号：MY8500832A
公开(公告)日：1985-12-31
申请号：MY8500832
申请日：1985-12-30
申请人： HITACHI LTD
发明人： TAKASUGI NOBUHIRO , KYOMASU RYUICHI
IPC分类号： H01L21/00 , H01L21/60 , H01L21/68 , H01L23/544 , G05D3/00 , H01R4/00
摘要： In a wire bonding apparatus in which, by identifying recognition marks of a pellet or leads displaced from a reference position in wire-bonding a pellet of a semiconductor device to leads within a field of view of a television camera, the displacements of the bonding positions of the pellet and the lead are corrected and then bonding pads on the pellet are connected to the leads by wires, the field of view is moved from a reference view position in a given moving manner, whereby the recognition marks may be identified rapidly and reliably. This apparatus is well adapted for the wire bonding of a semiconductor device of the DILG sealing type, for example, which is poor in the position accuracy of the bonding position.

4. 发明专利

HK89384A WIRE BONDING APPARATUS 未知
公开(公告)号：HK89384A
公开(公告)日：1984-11-23
申请号：HK89384
申请日：1984-11-15
申请人： HITACHI LTD
发明人： TAKASUGI NOBUHIRO , KYOMASU RYUICHI
IPC分类号： H01L21/00 , H01L21/60 , H01L21/68 , H01L23/544 , G05D3/00 , H01R4/00
摘要： In a wire bonding apparatus in which, by identifying recognition marks of a pellet or leads displaced from a reference position in wire-bonding a pellet of a semiconductor device to leads within a field of view of a television camera, the displacements of the bonding positions of the pellet and the lead are corrected and then bonding pads on the pellet are connected to the leads by wires, the field of view is moved from a reference view position in a given moving manner, whereby the recognition marks may be identified rapidly and reliably. This apparatus is well adapted for the wire bonding of a semiconductor device of the DILG sealing type, for example, which is poor in the position accuracy of the bonding position.

5. 发明专利

HK53083A CONTROL CIRCUIT FOR A POSITIONING DEVICE USING A DC MOTOR 未知
公开(公告)号：HK53083A
公开(公告)日：1983-11-18
申请号：HK53083
申请日：1983-11-10
申请人： HITACHI LTD
发明人： KYOMASU RYUICHI , HANASHIMA SHUICHI , SUZUMURA YOSHIKAZU
IPC分类号： G05D3/12 , G05B19/23 , G05D3/20 , H02P7/06 , G05B5/01
摘要： Disclosed is a control circuit of a positioning device for moving a member to be controlled to a predetermined position by using a d-c motor, in which there are used arithmetic circuit means for detecting a difference signal, to be converted to a driving signal of the motor, between the position detecting signal of the member and the reference signal of the predetermined position, and correcting circuit means coupled to the arithmetic circuit means for causing the difference signal to be small, whereby the motor is free from the hunting phenomenon.

6. 发明专利

DE3019454A1 未知
公开(公告)号：DE3019454A1
公开(公告)日：1980-12-18
申请号：DE3019454
申请日：1980-05-21
申请人： HITACHI LTD
发明人： TAKASUGI NOBUHIRO , KYOMASU RYUICHI
IPC分类号： H01L21/00 , H01L21/60 , H01L21/68 , H01L23/544 , H01R43/02 , H01L21/92 , H01L23/48
摘要： In a wire bonding apparatus in which, by identifying recognition marks of a pellet or leads displaced from a reference position in wire-bonding a pellet of a semiconductor device to leads within a field of view of a television camera, the displacements of the bonding positions of the pellet and the lead are corrected and then bonding pads on the pellet are connected to the leads by wires, the field of view is moved from a reference view position in a given moving manner, whereby the recognition marks may be identified rapidly and reliably. This apparatus is well adapted for the wire bonding of a semiconductor device of the DILG sealing type, for example, which is poor in the position accuracy of the bonding position.

7. 发明专利

JP2585436B2 失效
公开(公告)号：JP2585436B2
公开(公告)日：1997-02-26
申请号：JP22303989
申请日：1989-08-31
申请人： HITACHI LTD
发明人： AMIMOTO TOSHUKI , TAKAHASHI ISAO , KAWANA TAKESHI , WATANABE AKITOMO , KYOMASU RYUICHI , TOKUDA HIROATSU
IPC分类号： H01F41/06

8. 发明专利

JPH02114127A MANUFACTURE OF HEATING RESISTOR FOR HOT WIRE TYPE AIR FLOWMETER, AND HEATING RESISTOR THEREOF 失效
公开(公告)号：JPH02114127A
公开(公告)日：1990-04-26
申请号：JP26706288
申请日：1988-10-25
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SAKAGUCHI TATSUNORI , TOKUDA HIROATSU , WATANABE IZUMI , ISONO TADASHI , KYOMASU RYUICHI
IPC分类号： G01F1/68 , G01F1/69
摘要： PURPOSE:To obtain a resistor with a limited invalid part of a platinum wire dissipating heat with a firm mounting of a resistance wire to a lead and without the generation of a Joule heat by making the resistor bobbin-free to wind and weld an end of the resistance wire on the lead. CONSTITUTION:A core wire 10 which comprises a material removable by a washing with a strong-acid solution or a hot melting removal without damaging a resistance wire and a lead is cut off to a specified length and a lead 5 is percussion welded 11 at both ends thereof. A platinum wire 1 is wound on a core wire 10 in a coil and both ends thereof are wound and welded 13 on the lead 5. Then, an alumina film 2 is formed on the platinum 1 and the core wire 10 by an electrophoresis to be sintered. As the alumina film 2 after the sintering is porous, the core wire 10 can be removed by immersing the wire into a strong-acid solution or heating it. With the removal of the core wire 10, a hollow part 4 is formed. Then, a glass layer 3 is applied on the alumina film 2 and the lead 5 is welded 6 on a strut 7. As a resistor thus obtained is free of a bobbin, it is in noway affected by a heat capacity of a bobbin thereby achieving a better responsiveness.

9. 发明专利

JPS63159911A SERVO CIRCUIT AND SERVO CONTROL CIRCUIT USING SAID SERVO CIRCUIT 失效
公开(公告)号：JPS63159911A
公开(公告)日：1988-07-02
申请号：JP30646486
申请日：1986-12-24
申请人： HITACHI LTD , HITACHI TOKYO ELECTRONICS
发明人： KYOMASU RYUICHI , TAKASUGI NOBUHIRO , HIDAKA HIDEKI
IPC分类号： G05B1/01 , G05D3/12
摘要： PURPOSE:To reduce the vibrations caused in the working state of a servo circuit and to accurately control the speed and the position of the servo circuit, by outputting a command pulse after applying the digital/analog conversion and then the voltage/frequency conversion to the command servo value. CONSTITUTION:The command servo value received from a computer device 1 undergo the prescribed processes through a counter 2, a D/A converter 3 and a V/F converter 4 as the value showing the acceleration value of an object to be controlled and is outputted in the form of a command pulse. Thus, the command pulse is outputted as the number of pulses set at the counter 2 and the frequency of the command pulse output is varied in response to the residue of the set data value of the counter 2. Therefore, the pulse output approximates slowly to the zero value of the counter 2. Thus, the position control is attained with high accuracy and at low vibration levels.

10. 发明专利

JPS6252938A MANUFACTURE APPARATUS 失效
公开(公告)号：JPS6252938A
公开(公告)日：1987-03-07
申请号：JP19194985
申请日：1985-09-02
申请人： HITACHI TOKYO ELECTRONICS , HITACHI LTD
发明人： TAKASUGI NOBUHIRO , KYOMASU RYUICHI , HIDAKA HIDEKI
IPC分类号： H01L21/60
摘要： PURPOSE:To realize highly reliable bonding by a method wherein a limiting circuit, which limits a current supplied to a driving motor of a servomechanism which operates a bonding tool vertically, sets the limit value at about the same time as the tool lands on an object to be bonded. CONSTITUTION:A microcomputer 11 predetermines a bonding tool load suitable for wire-bonding of a semiconductor structure 6 in accordance with the type of an object to be bonded and calculates the current value applied to a voice coil motor 8 so as not to make the tool load exceed the predetermined load. A current limiting circuit 16 is controlled synchronously with the vertical operation of a bonding arm 4 and is so programmed as to be operated at about the same time as, preferrably immediately before, a bonding tool 5 lands on the semiconductor structure 6. Immediately before the landing, the current limiting circuit 16 sets the limit value of the saturated current of an amplifier 13 to limit the maximum torque induced in the voice coil motor 8 after landing.

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