-
公开(公告)号：US20240120423A1
公开(公告)日：2024-04-11
申请号：US18073356
申请日：2022-12-01
发明人： TETSUYA OKADA , KIKUO OKADA , REMI HAGIWARA
IPC分类号： H01L29/872 , H01L21/225 , H01L21/265 , H01L21/304 , H01L21/66 , H01L29/47 , H01L29/66
CPC分类号： H01L29/872 , H01L21/2253 , H01L21/26513 , H01L21/304 , H01L22/12 , H01L29/47 , H01L29/66143
摘要： A semiconductor device includes a semiconductor substrate; an anode electrode, formed on a surface on one side of the semiconductor substrate; a cathode electrode, formed on a surface on the other side of the semiconductor substrate; a P layer, formed on the anode electrode side in the semiconductor substrate; and an N layer, formed on the cathode electrode side in the semiconductor substrate and on the other side of the P layer. The cathode electrode and the N layer are Schottky functioned, the cathode electrode is a metal having work function ranging from 4.2 to 4.3, and the carrier concentration of the N layer ranges from 1×e12 to 1×e18/cm3.
-
公开(公告)号：US11899487B2
公开(公告)日：2024-02-13
申请号：US17835160
申请日：2022-06-08
发明人： Hiroyuki Kimura
摘要： The present invention includes: a first current source, through which a first current is made to flow; a second current source, through which a second current set at a certain ratio to the first current is made to flow; a first current path, which includes a second resistor, a first resistor, and a first bipolar transistor that are connected to the first current source in a sequential manner, and through which the first current is made to flow; a second current path, which includes a third resistor and a 0th bipolar transistor that are connected to the second current source in a sequential manner, and through which the second current is made to flow; an operational amplifier, which controls current amounts of the first current and the second current by an output from an output end, and of which a positive input end is connected to a connection point between the second resistor and the first resistor, and of which a negative input end is connected to a connection point between the third resistor and the 0th bipolar transistor; and a buffer amplifier, which outputs a reference voltage, and of which a positive input end is connected to a connection point between the second current source and the third resistor, and of which a negative input end is connected to an output end; wherein an area ratio of the first bipolar transistor to the 0th bipolar transistor is n:1, and a reference voltage of which temperature dependence is corrected is obtained by adjusting resistance values of the first and the third resistor and a value of the area ratio n.
-
公开(公告)号：US20230421115A1
公开(公告)日：2023-12-28
申请号：US17878456
申请日：2022-08-01
发明人： HIROAKI SASAKI
IPC分类号： H03F3/04
CPC分类号： H03F3/04 , H03F2200/129
摘要： An error amplifier circuit includes: a plurality of error amplifiers, each of which obtains an output for an error between two input signals; and a multiplexer, which selects or deselects the outputs of the plurality of error amplifiers and outputs the selected output of the error amplifier as a control signal for a circuit to be controlled. Regarding the multiplexer, in an error amplifier which is one of the plurality of error amplifiers and of which the output is not selected, a delay element arranged in an input path of the one error amplifier is short-circuited to widen the bandwidth of the error amplifier.
-
公开(公告)号：US20230411984A1
公开(公告)日：2023-12-21
申请号：US17873951
申请日：2022-07-26
发明人： MANABU ISHIDA
IPC分类号： H02J7/00
CPC分类号： H02J7/00712 , H02J2207/20
摘要： A power supply system includes a regulator, outputting a system voltage; a load, receiving the system voltage to operate; a battery, charged by the system voltage; a charging transistor, receiving the system voltage and controlling a charging current to the battery; and a three-input amplifier, in which three factors including a charging current detection value, a reference charging current, and a reference limit current determined according to a difference between the system voltage and a minimum system voltage are input, and which obtains an output corresponding to a difference between the reference charging current and the charging current detection value when the reference charging current is equal to or less than the reference limit current, and obtains an output corresponding to a difference between the reference limit current and the charging current detection value when the reference charging current exceeds the reference limit current.
-
公开(公告)号：US20230376065A1
公开(公告)日：2023-11-23
申请号：US17835160
申请日：2022-06-08
发明人： Hiroyuki KIMURA
摘要： The present invention includes: a first current source, through which a first current is made to flow; a second current source, through which a second current set at a certain ratio to the first current is made to flow; a first current path, which includes a second resistor, a first resistor, and a first bipolar transistor that are connected to the first current source in a sequential manner, and through which the first current is made to flow; a second current path, which includes a third resistor and a 0th bipolar transistor that are connected to the second current source in a sequential manner, and through which the second current is made to flow; an operational amplifier, which controls current amounts of the first current and the second current by an output from an output end, and of which a positive input end is connected to a connection point between the second resistor and the first resistor, and of which a negative input end is connected to a connection point between the third resistor and the 0th bipolar transistor; and a buffer amplifier, which outputs a reference voltage, and of which a positive input end is connected to a connection point between the second current source and the third resistor, and of which a negative input end is connected to an output end; wherein an area ratio of the first bipolar transistor to the 0th bipolar transistor is n:1, and a reference voltage of which temperature dependence is corrected is obtained by adjusting resistance values of the first and the third resistor and a value of the area ratio n.
-
公开(公告)号：US11372143B2
公开(公告)日：2022-06-28
申请号：US16878138
申请日：2020-05-19
发明人： Patrick Smith , Paul Wickboldt , Patrick A. Worfolk , Steven Molesa , Young Lee , Richard Klenkler
摘要： Fingerprint sensors include a plurality of optical sensor elements, a collimator filter disposed above the plurality of optical sensor elements, and a display disposed above the collimator filter, wherein the display is a fingerprint imaging light source. The collimator filter has a plurality of apertures, and the plurality of optical sensor elements is configured to receive light transmitted through one aperture of the plurality of apertures.
-
公开(公告)号：US11281336B2
公开(公告)日：2022-03-22
申请号：US17024398
申请日：2020-09-17
摘要： Systems and methods for optical imaging are disclosed. An optical sensor includes: an image sensor array comprising a plurality of pixels; and a collimator filter disposed above the image sensor array, the collimator filter comprising a plurality of light collimating apertures and light blocking material, wherein multiple light collimating apertures of the plurality of light collimating apertures are disposed within a photosensitive area of one of the pixels in the plurality of pixels, and wherein the multiple light collimating apertures are disposed over different portions of the photosensitive area of the one of the pixels.
-
公开(公告)号：US20210004121A1
公开(公告)日：2021-01-07
申请号：US17024398
申请日：2020-09-17
摘要： Systems and methods for optical imaging are disclosed. An optical sensor includes: an image sensor array comprising a plurality of pixels; and a collimator filter disposed above the image sensor array, the collimator filter comprising a plurality of light collimating apertures and light blocking material, wherein multiple light collimating apertures of the plurality of light collimating apertures are disposed within a photosensitive area of one of the pixels in the plurality of pixels, and wherein the multiple light collimating apertures are disposed over different portions of the photosensitive area of the one of the pixels.
-
公开(公告)号：US10809853B2
公开(公告)日：2020-10-20
申请号：US16041096
申请日：2018-07-20
摘要： Systems and methods for optical imaging are disclosed. An optical sensor includes: an image sensor array comprising a plurality of pixels; and a collimator filter disposed above the image sensor array, the collimator filter comprising a plurality of light collimating apertures and light blocking material, wherein multiple light collimating apertures of the plurality of light collimating apertures are disposed within a photosensitive area of one of the pixels in the plurality of pixels, and wherein the multiple light collimating apertures are disposed over different portions of the photosensitive area of the one of the pixels.
-
公开(公告)号：US10705272B2
公开(公告)日：2020-07-07
申请号：US15823457
申请日：2017-11-27
发明人： Patrick Smith , Paul Wickboldt , Patrick A. Worfolk , Steven Molesa , Young Lee , Richard Klenkler
摘要： Systems and methods for optical imaging are disclosed. The optical fingerprint sensor includes an image sensor array; a collimator filter layer disposed above the image sensor array, the collimator filter layer having an array of apertures; and an illumination layer disposed above the collimator filter layer. The collimator filter layer filters reflected light such that only certain of the reflected light beams reach optical sensing elements in the image sensor array. Employing the collimator filter layer prevents blurring while allowing for a lower-profile image sensor.
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.026 秒)
