-
公开(公告)号：JPS62242213A
公开(公告)日：1987-10-22
申请号：JP8540386
申请日：1986-04-14
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
Abstract: PURPOSE:To easily realize pseudo constant voltage load by biasing negative voltage between the gate and source of an electrostatic induction transistor of normally-on type, and connecting the drain and source to a terminal for constant voltage load connection of other apparatus. CONSTITUTION:The characteristic of an electrostatic induction transistor SIT of normally-on type is that when negative voltage -VG impressed between the gate and source is set to -VG1-VG4 by adjusting a volume VR, voltage VDS between the drain and source becomes specified constant voltage VDS1-VDS4 even when drain-source current I changes, and constant voltage load characteristic similar to an electric discharge lamp is obtained. The electrostatic induction transistor SIT can be easily made to high power, and pseudo constant voltage load used in place of high power constant voltage load can be easily realized. A bias circuit B that generates negative voltage -VG can be realized by a simple voltage generating circuit. Thus, an inexpensive constant voltage loading device of simple circuit configuration can be obtained.
-
公开(公告)号：JPS62124761A
公开(公告)日：1987-06-06
申请号：JP26399585
申请日：1985-11-25
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
Abstract: PURPOSE:To use X-rays on defective analysis, and to determine the state of bonding of a device by coating the surface of an aluminum small-gage wire with a radiation untransmitting substance. CONSTITUTION:An aluminum wire for bonding is manufactured by coating the surface of a aluminum small-gage wire 1 with gold, lead, etc. as a radiation untransmitting substance 2 through plating, etc. and application. When using the aluminum wire for bonding, the aluminum wire bonded can be viewed and the force of analysis is improved largely when X-rays are employed for the defective analysis of a device sealed after bonding because the aluminum wire is coated with the radiation untransmitting substance 2. Since an X-ray inspection process is adopted immediately after sealing on processes, nondefectives and defectives can be discriminated on processes, and the remarkable improvement of quality assurance on processes can be expected.
-
公开(公告)号：JPS61296725A
公开(公告)日：1986-12-27
申请号：JP14104785
申请日：1985-06-25
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
IPC: H01L21/306
Abstract: PURPOSE:To form a narrow and deep mesa groove by a method wherein fine powder is blown against a semiconductor substrate surface from a nozzle by a high pressure and the groove is formed in the semiconductor substrate surface and then etchant is introduced into the groove for etching. CONSTITUTION:A resist 5 is etched and a substrate 2 under the resist 5 is scraped by sand such as silicon powder or alumina powder blown out of a nozzle 4. The diameter of each particle of the sand is preferably 1-5mum and the blowing pressure is preferably about 1kg/cm . Then the substrate is dipped into etchant. As a narrow groove 6 is already formed, erosion by the etchant does not progress sidewise so much and deep etching can be realized. Therefore, mesa etching can be performed even if there is not a wide space provided around a semiconductor device region 1.
-
公开(公告)号：JPS61296718A
公开(公告)日：1986-12-27
申请号：JP14104685
申请日：1985-06-25
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
IPC: G03F7/20 , H01L21/027 , H01L21/30
Abstract: PURPOSE:To form a fine pattern and reduce the cost of a photoresist process even if negative type resist is employed by a method wherein the film thickness of the resist is made to be thin enough to facilitate fine grooving by a short time exposure. CONSTITUTION:Negative type photoresist is applied to a semiconductor substrate 1 of silicon or the like by spin-coating so as to have a film thickness of 8000-10000Angstrom and then backed at 80-90 deg.C. After a photomask is set, the resist is exposed for a period of 1/3-1/2 of the exposure period of printing in single process in a mask aligner. Then the resist is developed in a normal developing time and, after drying, by using the mask aligner without using the photomask, the whole surface is exposed for a normal exposure period. Then the semiconductor substrate is baked at about 150 deg.C.
-
公开(公告)号：JPS61218914A
公开(公告)日：1986-09-29
申请号：JP6154185
申请日：1985-03-25
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
Abstract: PURPOSE:To miniaturize a group of photo-electric elements and a signal processing circuit by arranging many photo-electric elements on a semiconductor substrate, and at the same time, integrating a signal processing circuit on the semiconductor substrate. CONSTITUTION:A semiconductor disk 22 is provided on the rotation shaft 21a of a motor 21, and many photo-electric elements 23 are arranged concentrically on the disk 22. A light source 24 such as a light emission diode etc. projects luminous flux of the size nearly equal to a photo-elctric element 23 on a part of the face of concentric circle. The semiconductor disk 22 rotates with rotation of the motor 21, and photo-electric elements 23 arranged on the concentric circle cross successively under projected luminous flux, and when the projected luminous flux enters the photo-electric elements 23, the photo-electric elements become ON state. With the row of photo-electric elements 23, a signal processing circuit is also integrated, and photo-electric elements 23 are connected to the circuit on the disk 22.
-
Patent Agency Ranking
公开(公告)号：JPS59116558A
公开(公告)日：1984-07-05
申请号：JP20950882
申请日：1982-11-30
Applicant: Matsushita Electric Works Ltd
Inventor： KOMODA TAKUYA , SAKAMOTO SHINJI
IPC: H02J7/00 , G01R19/165 , G01R31/36 , H02J9/00 , H02J9/06
Abstract: PURPOSE: To prevent malfunctioning of a voltage monitor circuit by inserting a collector/emitter of a transistor each between a discharging resistor and a capacitor, a series circuit and a parallel circuit of charging resistors and switching elements to turn on the transistor to make the capacitor chargeable.
CONSTITUTION: The collector of a transistor Q
1 is grounded through a circuit having a load circuit 3, a series circuit of reseistors R
4 and R
3 and a series circuit of a transistor Q
2 , a capacitor C
1 and a charging resistor R
2 connected in series and the connection point of the resistors R
4 and R
3 connected to the base of the transistor Q
2 . A discharging resistor R'
1 is connected in parallel to the series circuit of the capacitor C
1 and the resistor R
2 . When resetting a voltage monitor circuit 4, first, a resetting switch 5 is turned OFF to cut an AC power source AC and then, upon tuning on of the transistor Q
1 by the detection output of a power failure detection circuit 2, current flows through the resistors R
4 and R
3 and the transistor Q
2 is forward biased to be turned on. A charging current flows through the capacitor C
1 and transmitted to the voltage monitor circuit 4 through a diode D
1 to generate a positive voltage pulse whereby resetting the state of a light emitting diode LED.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：通过将放电电阻和电容器之间的晶体管的集电极/发射极插入，以防止电压监视电路出现故障，串联电路和并联电路将充电电阻和开关元件导通晶体管，使电容器 收费。 构成：晶体管Q1的集电极通过具有负载电路3，晶体管R4和R3的串联电路和串联连接的晶体管Q2，电容器C1和充电电阻R2的串联电路的电路接地， 连接到晶体管Q2的基极的电阻器R4和R3的点。 放电电阻器R'1并联连接到电容器C1和电阻器R2的串联电路。 当复位电压监视电路4时，首先，复位开关5断开以切断AC电源AC，然后在通过电源故障检测电路2的检测输出调谐晶体管Q1时，电流流过 电阻器R4和R3以及晶体管Q2被正向偏置以导通。 充电电流流过电容器C1，并通过二极管D1传输到电压监视电路4，以产生正电压脉冲，从而复位发光二极管LED的状态。
-
公开(公告)号：JPS5941026A
公开(公告)日：1984-03-07
申请号：JP15088082
申请日：1982-08-31
Applicant: Matsushita Electric Works Ltd
Inventor： KOMODA TAKUYA
CPC classification number: G06F1/24
Abstract: PURPOSE:To improve a reset effect without increasing the capacity of a capacitor, by providing the 1st-3rd TRs and the capacitor to a reset circuit storing the battery voltage monitoring state of an emergency lamp. CONSTITUTION:A storing circuit 1 for storing the battery voltage monitoring state is built in a battery failure detecting circuit and a reset circuit 2 is provided to the circuit 1. The reset circuit 2 is provided with a series circuit consisting of a resistor R1 and a capacitor C1 and the 1st TRQ1 for charging the capacitor C1. The 2nd TRQ2 to be turned on by a reset signal from a terminal R is also built in the reset circuit 2 and connected to the TRQ1 in series. The 3rd TRQ3 is turned on by a reset signal from the terminal R to discharge the capacitor C1. During the period from turn-on of the TRQ2 by the reset signal to turn-off of the TRQ1, reset pulses are outputted, so that the reset effect is improved without increasing the capacity of the capacitor C1.
Abstract translation: 目的：通过为保存应急灯的电池电压监视状态的复位电路提供第1至第3 TR和电容器来提高复位效果，而不增加电容器的容量。 构成：用于存储电池电压监视状态的存储电路1内置在电池故障检测电路中，并且复位电路2被提供给电路1.复位电路2设置有由电阻器R1和 电容器C1和用于对电容器C1充电的第一TRQ1。 通过来自端子R的复位信号接通的第二TRQ2也内置在复位电路2中并串联连接到TRQ1。 第三TRQ3通过来自端子R的复位信号导通，以对电容器C1进行放电。 在TRQ2由复位信号导通到TRQ1的截止期间，输出复位脉冲，从而在不增加电容器C1的容量的情况下改善复位效果。
-
公开(公告)号：JPS58172884A
公开(公告)日：1983-10-11
申请号：JP5413682
申请日：1982-03-31
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
-
公开(公告)号：JPS57132214A
公开(公告)日：1982-08-16
申请号：JP1870081
申请日：1981-02-10
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
Abstract: PURPOSE:To obtain a constant voltage output which is under no influence of temperature by connecting a Zener diode to the base of a transistor (TR) and two resistances and a diode to the emitter, and by obtaining the output at the connection point of the resistances. CONSTITUTION:A Zener diode DZ1 is connected to the base of a TRQ1, resistances R1 and R2 and a diode D1 are also connected to the emitter of the TRQ1, and diodes D2 as many as or less than the D1 are connected between the DZ1 and TRQ1. A constant current source I which flows a constant current is connected to the connection point between the DZ1 and the base of the TRQ1, and a power voltage VCC is applied to the collector of the TRQ1 to obtain an output voltage V0 at the connection point between the resistances R1 and R2. The DZ1 has a positive temperature coefficient and the base and emitter voltages D1 and D2 of the TRQ1 have negative temperature coefficients. For this purpose a ratio R1:R2 is so selected that a prescribed relation is satisfied, thereby obtaining the stable voltage V0 which is not influenced by temperature even when the ambient temperature fluctuates.
-
公开(公告)号：JPS57891A
公开(公告)日：1982-01-05
申请号：JP7334480
申请日：1980-05-31
Applicant: MATSUSHITA ELECTRIC WORKS LTD
Inventor： KOMODA TAKUYA
IPC: H05B41/16
-
-
-
-
-
-
-
-
-
Search Results
320
records
(took 0.032 seconds)
