Voltage regulator having a phase compensation circuit

    公开(公告)号:US10474173B2

    公开(公告)日:2019-11-12

    申请号:US16057435

    申请日:2018-08-07

    申请人: ABLIC Inc.

    发明人: Shingo Nakashima

    IPC分类号: G05F1/575 G05F1/56

    摘要: A voltage regulator is equipped with the first and the second source-grounded amplifier circuits connected to an output terminal of a differential amplifier circuit; a phase compensation circuit having a resistor part and a capacitor part, and connected between an output terminal of the first source-grounded amplifier circuit and an output terminal of the second source-grounded amplifier circuit; and an output transistor connected to the output terminal of the second source-grounded amplifier circuit. At least one of the resistor part and the capacitor part of the phase compensation circuit has a filter.

    RESIN-ENCAPSULATED SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20190333888A1

    公开(公告)日:2019-10-31

    申请号:US16507308

    申请日:2019-07-10

    申请人: ABLIC Inc.

    发明人: Noriyuki KIMURA

    摘要: A resin-encapsulated semiconductor device includes a bump electrode formed on an element surface side of a semiconductor chip, a conductive layer electrically connected to the bump electrode, and a resin encapsulation body covering the semiconductor chip, the bump electrode, and the conductive layer. On a back surface of the semiconductor chip that is flush with a back surface of the resin encapsulation body, a metal layer and a laminated film are formed. The laminated film is formed on a front surface of the conductive layer, and an external terminal is arranged on an inner side of an outer edge of the semiconductor chip.

    POWER SUPPLY CIRCUIT
    64.
    发明申请

    公开(公告)号:US20190305686A1

    公开(公告)日:2019-10-03

    申请号:US16363061

    申请日:2019-03-25

    申请人: ABLIC Inc.

    发明人: Kotaro WATANABE

    IPC分类号: H02M3/158 H02M3/157

    摘要: Provided is a power supply circuit including a series regulator step-down power circuit, a charge pump step-up power circuit, and a voltage selection circuit to which a voltage of an input terminal and a voltage of an output terminal are supplied and configured to output a higher voltage from the supplied voltages. A connection point of a first resistor and a second resistor which are connected between the output terminal and a ground terminal is connected to an input of a differential amplifier circuit. An output of the differential amplifier circuit is connected to a gate terminal of an output transistor via a first switch. An output of the voltage selection circuit is connected to the gate terminal of the output transistor via a second switch. The output of the voltage selection circuit is connected to a substrate electrode of the output transistor.

    Reference voltage circuit and semiconductor device

    公开(公告)号:US10401891B2

    公开(公告)日:2019-09-03

    申请号:US16227740

    申请日:2018-12-20

    申请人: ABLIC Inc.

    发明人: Kaoru Sakaguchi

    摘要: A reference voltage circuit includes: a depletion type MOS transistor and an enhancement type MOS transistor connected in series, and having gates thereof connected in common, the enhancement type MOS transistor providing a reference voltage from a drain thereof, the depletion type MOS transistor including at least a first depletion type MOS transistor and a second depletion type MOS transistor connected in series; and a capacitor having one end connected to a drain of the first depletion type MOS transistor, and the other end connected to a source of the first depletion type MOS transistor.

    REVERSE-CURRENT-PREVENTION CIRCUIT AND POWER SUPPLY CIRCUIT

    公开(公告)号:US20190220048A1

    公开(公告)日:2019-07-18

    申请号:US16221770

    申请日:2018-12-17

    申请人: ABLIC Inc.

    发明人: Tsutomu TOMIOKA

    摘要: A reverse-current-prevention circuit includes a reverse-current-prevention transistor of a P-channel MOS transistor inserted between an input terminal supplied with a power supply voltage and an output stage transistor of a P-channel MOS transistor providing an output voltage from an output terminal, and a reverse-current-prevention controller configured to turn the reverse-current-prevention transistor from on to off according to exceedance of the output voltage to the power supply voltage. The reverse-current-prevention controller includes a first transistor of a depletion type P-channel MOS transistor having a source and gate respectively connected to the output terminal and the input terminal, and a second transistor of a depletion type P-channel MOS transistor having a source and gate respectively connected to a drain of the first transistor and a gate of the reverse-current-prevention transistor, and a drain grounded.

    Resin-encapsulated semiconductor device and method of manufacturing the same

    公开(公告)号:US10354968B2

    公开(公告)日:2019-07-16

    申请号:US15926830

    申请日:2018-03-20

    申请人: ABLIC Inc.

    发明人: Noriyuki Kimura

    摘要: The resin-encapsulated semiconductor device includes a bump electrode (2) formed on an element surface side of a semiconductor chip (1), a conductive layer (3) electrically connected to the bump electrode (2), and a resin encapsulation body (6) covering the semiconductor chip (1), the bump electrode (2), and the conductive layer (3). On a back surface of the semiconductor chip (1) that is flush with a back surface of the resin encapsulation body (6), a metal layer (4) and a laminated film (5) are formed. The laminated film (5) is formed on a front surface of the conductive layer (3). The external terminal (9) is arranged on an inner side of an outer edge of the semiconductor chip (1).

    CURRENT GENERATION CIRCUIT
    68.
    发明申请

    公开(公告)号:US20190187739A1

    公开(公告)日:2019-06-20

    申请号:US16220762

    申请日:2018-12-14

    申请人: ABLIC Inc.

    IPC分类号: G05F3/26 G05F3/24 G05F3/30

    CPC分类号: G05F3/262 G05F3/24 G05F3/30

    摘要: A current generation circuit includes: a current source circuit including a first transistor and a first resistor, and configured to output a first current based on a source voltage or a drain voltage of the first transistor and a resistance of the first resistor; a current control circuit including a voltage input terminal, a second transistor and a third transistor, and configured to output a second current based on a source voltage of the second transistor and a resistance of the third transistor; and an impedance circuit including a second resistor formed of a same resistive body as the first resistor and a fourth transistor diode-connected to the second resistor, and configured to generate a control voltage at the voltage input terminal by the first current and the second current, wherein the current generation circuit is configured to output a current based on the second current.

    Semiconductor device having a gate electrode embedded in a trench

    公开(公告)号:US10263076B2

    公开(公告)日:2019-04-16

    申请号:US15874342

    申请日:2018-01-18

    申请人: ABLIC Inc.

    摘要: To obtain a semiconductor device in which a reduction in channel formation density in a trench extending direction is suppressed, provided is a semiconductor device including a first region and a second region alternately arranged in the trench extending direction. The first region includes a first front surface semiconductor electrode layer of a first conductivity type having a portion along an outer side surface of the trench from the front surface of the semiconductor device to the first height to which a gate electrode is embedded into the trench. The second region includes a base contact region having a depth from the front surface of the semiconductor device to the second height higher than the first height and a second front surface semiconductor electrode layer of the first conductivity type from the first height to the second height.

    Semiconductor device and electronic apparatus

    公开(公告)号:US10262924B2

    公开(公告)日:2019-04-16

    申请号:US15936738

    申请日:2018-03-27

    申请人: ABLIC Inc.

    发明人: Kiyoaki Kadoi

    摘要: Provided is a semiconductor device enabling highly accurate adjustment of a mounting height at a time when the semiconductor device is mounted on an assembly board, and an electronic apparatus. A linear lead is extracted from a bottom surface of a cylindrical resin sealing body covering a semiconductor chip, and a plurality of helical leads are arranged so as to wind around the linear lead, to thereby form a multi-helical structure. The plurality of helical leads forming the multi-helical structure has the same pitch.