公开(公告)号：US20170194050A1

公开(公告)日：2017-07-06

申请号：US15462956

申请日：2017-03-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideki UOCHI ,  Koichiro KAMATA

IPC: G11C13/00 ,  H01L27/115 ,  H01L29/24

Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.

公开(公告)号：US20150008758A1

公开(公告)日：2015-01-08

申请号：US14456058

申请日：2014-08-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yutaka SHIONOIRI ,  Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

IPC: H02J17/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: An object is to provide a power feeding system and a power feeding method which are more convenient for a power feeding user at the power receiving end, without causing increases in complexity and size of devices. An object is to provide a power feeding system and a power feeding method which also allow a power feeding provider (a company) which feeds power (at the power transmitting end) to supply power without waste. A power feeding device which wirelessly supplies power to a power receiver detects the position and the resonant frequency of the power receiver by receiving a position and resonant frequency detection signal using a plurality of sub-carriers having different frequencies from the power receiver, and controls the frequency of a power signal to be transmitted to the power receiver on the basis of the information. An efficient power feeding service can be offered by transmitting a power signal to the power receiver at an optimum frequency for high power transmission efficiency.

Abstract translation: 本发明的目的是提供一种供电系统和馈电方法，其对于供电用户在电力接收端更方便，而不会增加设备的复杂性和尺寸。 本发明的目的是提供一种馈电系统和馈电方法，其还允许馈电供应商（在发电端发电）供电而不浪费电力。 向功率接收器无线供电的供电装置通过使用具有与电力接收器不同的频率的多个子载波接收位置和谐振频率检测信号来检测电力接收器的位置和谐振频率，并且控制 根据该信息将电力信号的频率发送到电力接收器。 通过以最佳频率向功率接收器发送功率信号以实现高功率传输效率，可以提供有效的馈电服务。

公开(公告)号：US20140375263A1

公开(公告)日：2014-12-25

申请号：US14481435

申请日：2014-09-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yutaka SHIONOIRI ,  Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

IPC: H02J7/02 ,  H02J5/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0093

Abstract: An object is to provide a power feeding system and a power feeding method which are more convenient for a power feeding user at the power receiving end. An object is to provide a power feeding system and a power feeding method which also allow a power feeding provider (a company) which feeds power (at the power transmitting end) to supply power without waste. A power feeding device which wirelessly supplies power to a power receiver detects the position and the resonant frequency of the power receiver to be supplied with power, and controls the frequency of a power signal to be transmitted to the power receiver on the basis of the information. An efficient power feeding service can be offered by transmitting a power signal to the power receiver at an optimum frequency for high power transmission efficiency.

Abstract translation: 本发明的目的是提供一种供电系统和馈电方法，其对于电力接收端的馈电用户更为方便。 本发明的目的是提供一种馈电系统和馈电方法，其还允许馈电供应商（在发电端发电）供电而不浪费电力。 向功率接收器无线供电的供电装置检测供电电源的位置和谐振频率，并根据信息控制发送到电力接收器的电力信号的频率 。 通过以最佳频率向功率接收器发送功率信号以实现高功率传输效率，可以提供有效的馈电服务。

公开(公告)号：US20140093992A1

公开(公告)日：2014-04-03

申请号：US14097677

申请日：2013-12-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koichiro KAMATA

IPC: G01N27/414 ,  H01L29/66

CPC classification number: G01N27/4141 ,  H01L27/12 ,  H01L27/1225 ,  H01L29/66969

Abstract: It is an object to provide a gas sensor which is formed by a simple manufacturing process. Another object is to provide a gas sensor whose manufacturing cost is reduced. A transistor which includes an oxide semiconductor layer in contact with a gas and which serves as a detector element of a gas sensor, and a transistor which includes an oxide semiconductor layer in contact with a film having a gas barrier property and which forms a detection circuit are formed over one substrate by the same process, whereby a gas sensor using these transistors may be formed.

Abstract translation: 本发明的目的是提供一种通过简单的制造工艺形成的气体传感器。 另一个目的是提供一种制造成本降低的气体传感器。 一种晶体管，包括与气体接触并用作气体传感器的检测器元件的氧化物半导体层，以及晶体管，其包括与具有阻气性的膜接触的氧化物半导体层，并形成检测电路 通过相同的工艺形成在一个衬底上，由此可以形成使用这些晶体管的气体传感器。

公开(公告)号：US20230138802A1

公开(公告)日：2023-05-04

申请号：US18091432

申请日：2022-12-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideki UOCHI ,  Koichiro KAMATA

IPC: G11C13/00 ,  G11C11/404 ,  H01L29/24 ,  H10B69/00 ,  H01L29/16 ,  H01L29/49

Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.

公开(公告)号：US20170093221A1

公开(公告)日：2017-03-30

申请号：US15281745

申请日：2016-09-30

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Koichiro KAMATA

IPC: H02J50/12 ,  H01F38/14

Abstract: Not a structure in which a resonance frequency of a power transmission device is set after a resonance frequency of a power receiving device is directly measured but a structure in which the resonance frequencies of the power receiving device and the power transmission device are estimated after reflection of an electromagnetic field for transmitting electric power to the power receiving device is monitored by the power transmission device is employed. After a capacitance value of a variable capacitor in a resonance coil of the power receiving device is once set to 0, an S11 parameter is detected while a frequency of an electromagnetic wave is changed, and the resonance frequency of the power transmission device is estimated on the basis of the S11 parameter.

公开(公告)号：US20170070102A1

公开(公告)日：2017-03-09

申请号：US15355278

申请日：2016-11-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koichiro KAMATA

IPC: H02J50/12 ,  B60L11/18 ,  H02J50/80 ,  H02J7/02

CPC classification number: H02J50/12 ,  B60L53/12 ,  H02J7/025 ,  H02J50/80 ,  H02J50/90 ,  H02J2007/0096 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/14 ,  Y02T90/16

Abstract: A novel power receiving device and a novel power transmission device are provided. Power feeding and communication are performed using a magnetic resonance method. Specifically, in one embodiment of the present invention, power feeding is performed by generating a second high-frequency voltage based on a first high-frequency voltage induced in a resonant coil and communication is performed by modulating amplitude of the first high-frequency voltage induced in the resonant coil. Thus, it is possible to perform communication and power feeding based on data obtained by the communication in pseudo-parallel.

Abstract translation: 提供了一种新颖的受电装置和新颖的动力传递装置。 使用磁共振法进行供电和通信。 具体地，在本发明的一个实施例中，通过基于在谐振线圈中感应的第一高频电压产生第二高频电压来进行馈电，并且通过调制第一高频电压的振幅来进行通信 在谐振线圈中。 因此，可以基于通过伪并行获得的数据来执行通信和馈电。

公开(公告)号：US20170040891A1

公开(公告)日：2017-02-09

申请号：US15331029

申请日：2016-10-21

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Kei TAKAHASHI ,  Koichiro KAMATA ,  Misako MIWA ,  Shuhei MAEDA

IPC: H02M3/156 ,  H02J7/02

CPC classification number: H02M3/156 ,  G05F3/08 ,  H02J5/005 ,  H02J7/00 ,  H02J7/025 ,  H02J50/12 ,  H02M2001/0022

Abstract: A circuit capable of keeping input impedance constant is provided. Further, a circuit which can contribute to improvement in power feeding efficiency in power feeding by a magnetic resonance method is provided. A voltage (a former voltage) proportional to a direct-current voltage input to a DC-DC converter from the outside and a voltage (a latter voltage) proportional to a current input from the outside are detected, and the ratio of the former voltage and the latter voltage are held constant. Accordingly, input impedance can be kept constant. Further, impedance conversion is performed in the DC-DC converter. Thus, even when the battery in which power feeding is performed exists on an output side of the DC-DC converter, input impedance can be kept constant. Consequently, power can be supplied to a power receiving device including the DC-DC converter and the battery with high power feeding efficiency by a magnetic resonance method.

Abstract translation: 提供能够保持输入阻抗恒定的电路。 此外，提供了可以通过磁共振方法有助于提高馈电的馈电效率的电路。 检测与从外部输入到DC-DC转换器的直流电压成比例的电压（前一个电压）和与从外部输入的电流成比例的电压（后一个电压），并且前一个电压 并且后一电压保持恒定。 因此，输入阻抗可以保持恒定。 此外，在DC-DC转换器中进行阻抗转换。 因此，即使在DC-DC转换器的输出侧存在进行供电的电池，也可以保持输入阻抗恒定。 因此，可以通过磁共振方式向具有高功率馈送效率的DC-DC转换器和电池的电力接收装置供电。

公开(公告)号：US20160134133A1

公开(公告)日：2016-05-12

申请号：US15000109

申请日：2016-01-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koichiro KAMATA

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/80

Abstract: A contactless power feeding system includes a power transmitting device and a power receiving device. The power transmitting device includes a first AC power source configured to generate an AC power with a first frequency, a second AC power source configured to generate an AC power with a second frequency which is different from the first frequency, a first electromagnetic induction coil, and a first resonant coil. The power receiving device includes a second resonant coil, a second electromagnetic induction coil, and a power storage unit. Power is wirelessly supplied to the power storage unit at the second frequency by a magnetic resonance phenomenon which occurs between the first resonant coil and the second resonant coil.

公开(公告)号：US20150171739A1

公开(公告)日：2015-06-18

申请号：US14632104

申请日：2015-02-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Koichiro KAMATA

IPC: H02M1/32 ,  H02J17/00 ,  H02M7/217

CPC classification number: H02M1/32 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/07749 ,  H01L27/0248 ,  H01L27/0285 ,  H01L27/1225 ,  H02H9/046 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02M7/217

Abstract: To prevent damage on an element even when a voltage high enough to break the element is input. A semiconductor device of the invention operates with a first voltage and includes a protection circuit which changes the value of the first voltage when the absolute value of the first voltage is higher than a reference value. The protection circuit includes: a control signal generation circuit generating a second voltage based on the first voltage and outputting the generated second voltage; and a voltage control circuit. The voltage control circuit includes a transistor which has a source, a drain, and a gate, and which is turned on or off depending on the second voltage input to the gate and thus controls whether the value of the first voltage is changed based on the amount of current flowing between the source and the drain. The transistor also includes an oxide semiconductor layer.

Abstract translation: 即使输入足够高的电压来破坏元件，也能防止元件的损坏。 本发明的半导体器件以第一电压工作，并且包括当第一电压的绝对值高于参考值时改变第一电压的值的保护电路。 所述保护电路包括：控制信号生成电路，其基于所述第一电压生成第二电压，并输出所生成的第二电压; 和电压控制电路。 电压控制电路包括具有源极，漏极和栅极的晶体管，并且其根据输入到栅极的第二电压而导通或截止，从而基于第一电压的值是否改变第一电压的值 在源极和漏极之间流动的电流量。 晶体管还包括氧化物半导体层。