997 patents
Page 28 of 50
Utility
Semiconductor test circuit, semiconductor test apparatus, and semiconductor test method
4 May 21
A semiconductor test circuit, apparatus, and method having a first relay disposed between a power supply and a switching element, a second relay disposed between a connection point of the switching element and a reverse conducting-insulated gate bipolar transistor (RC-IGBT) chip and a snubber circuit, a third relay disposed between the switching element and the RC-IGBT chip and a coil, and a fourth relay disposed between a diode and the switching element.
Mitsuru Yoshida
Filed: 30 Oct 18
Utility
Semiconductor device and method of manufacturing semiconductor device
27 Apr 21
A semiconductor device includes a conductive plate to which a semiconductor element is mounted on a front surface; a sealing resin internally encapsulating at least the front surface of the conductive plate and the semiconductor element; and an external connection terminal connected to the conductive plate and exposed outside the sealing resin.
Tatsuo Nishizawa
Filed: 30 Jan 19
Utility
Semiconductor device with improved current flow distribution
27 Apr 21
A semiconductor device is provided, including: a semiconductor substrate; a transistor section provided in the semiconductor substrate; and a diode section provided in the semiconductor substrate being adjacent to the transistor section, wherein the diode section includes: a second conductivity-type anode region; a first conductivity-type drift region; a first conductivity-type cathode region; a plurality of dummy trench portions arrayed along a predetermined array direction; a contact portion provided along an extending direction of the plurality of dummy trench portions that is different from the array direction; and a lower-surface side semiconductor region provided directly below a portion of the contact portion at an outer end in the extending direction.
Tatsuya Naito
Filed: 26 Jan 20
Utility
Semiconductor device and method of manufacturing semiconductor device
27 Apr 21
A semiconductor device includes a semiconductor substrate, a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type, a first semiconductor region of the first conductivity type, a second semiconductor region of the second conductivity type, a gate electrode, a first electrode, and a gate electrode pad.
Yasuyuki Hoshi, Keishirou Kumada, Yuichi Hashizume
Filed: 27 Dec 18
Utility
Lead acid battery device, control device for lead acid battery, and control method for lead acid battery
13 Apr 21
A lead acid battery device includes a lead acid battery, a charge control unit to charge the lead acid battery by alternately and repeatedly performing high voltage charging, in which a pulsed high voltage is applied to the lead acid battery, and low voltage charging, in which a low voltage lower than the high voltage is applied to the lead acid battery, and an internal resistance calculation unit to calculate an internal resistance of the lead acid battery based on the voltage difference and the current difference of the lead acid battery between a condition at which the pulsed high voltage is applied and a condition at which the pulsed high voltage is not applied.
Takaharu Ohkanda, Kazuyuki Yoda, Hiroshi Takano
Filed: 5 Feb 19
Utility
Semiconductor device and method for manufacturing semiconductor device
13 Apr 21
A semiconductor device including an insulated circuit board on which a semiconductor chip is mounted, and a housing implemented by a plurality of side-walls including at least a first pair of facing side-walls, each of the facing side-walls having joint edges configured to be jointed with the insulated circuit board, and each of the joint edges has an arc-shape such that a center in an extending direction of the joint edge protrudes toward the insulated circuit board more than both ends of the extending direction of the joint edge.
Kenshi Kai, Rikihiro Maruyama, Yoshihiro Miyazaki
Filed: 22 Jan 19
Utility
Semiconductor device
13 Apr 21
Provided is a semiconductor device capable of reducing a mounting area.
Morio Iwamizu, Shigeyuki Takeuchi
Filed: 26 Jul 19
Utility
Schmitt trigger inverter circuit
13 Apr 21
To suppress the generation of a shoot-through current in a Schmitt trigger inverter circuit, a Schmitt trigger inverter circuit SINVa includes: a CMOS inverter CI having the input and output connected to the input and output of the Schmitt trigger inverter circuit, respectively; a first transistor MN3 having the gate connected to the output of the CMOS inverter; and a first current limiting element DEP1 connected to the first transistor in series.
Isao Saito
Filed: 28 Nov 18
Utility
Semiconductor device
6 Apr 21
A case includes a terminal disposition portion which includes a disposition surface projecting from an inner wall surface toward an open area, exposes an exposure region on a front surface of an external connecting terminal, and embeds therein a rear surface of the external connecting terminal.
Takashi Katsuki
Filed: 30 Jan 20
Utility
Semiconductor device, cooling module, power converting device, and electric vehicle
6 Apr 21
A semiconductor device includes: a first cooling device including a plurality of first flow channels through which a fluid flows, between a first main surface and a second main surface opposed to each other; a second cooling device including a plurality of second flow channels through which a fluid flows, between a third main surface and a fourth main surface parallel to the first main surface; a semiconductor element interposed between the first main surface and the third main surface facing each other; and a control terminal penetrating from the third main surface to the fourth main surface in a terminal-penetrating region defined at a predetermined position between the plurality of second flow channels, and electrically connected to a control electrode of the semiconductor element.
Kohei Yamauchi, Hiromichi Gohara, Katsumi Taniguchi
Filed: 22 Mar 19
Utility
Semiconductor device
6 Apr 21
A semiconductor device includes a power semiconductor switching element including a characteristic test terminal, and a control circuit configured to control an operation of the power semiconductor switching element.
Yuya Abe, Takanori Kohama
Filed: 31 Aug 18
Utility
Drainage processing apparatus and drainage processing method
30 Mar 21
A drainage processing apparatus that processes drainage expelled from a scrubber apparatus is provided.
Yosuke Hanai, Yasuzo Sakai
Filed: 28 Jun 18
Utility
Pressure sensor
30 Mar 21
A pressure sensor for detecting pressure is provided.
Kazuhiro Matsunami, Mutsuo Nishikawa, Yuko Fujimoto
Filed: 29 Oct 18
Utility
Sensor device utilizing adhesives and manufacturing method thereof
30 Mar 21
A sensor device including: a sensor portion; a casing portion housing the sensor portion; a first adhesive that is provided between the casing portion and the sensor portion; and a second adhesive that is provided between the first adhesive and the sensor portion and has an interface between the first adhesive and the second adhesive is provided.
Hiroki Ikesho
Filed: 25 Jan 19
Utility
Photosensitive body for electrophotography, method for producing same and electrophotographic apparatus
30 Mar 21
Shinjiro Suzuki, Seizo Kitagawa, Yuji Ogawa
Filed: 27 Jun 18
Utility
Semiconductor device
30 Mar 21
Power cycle life of an intelligent power module that includes an IGBT is estimated by an abnormality detection circuit(s) while a chip temperature detection circuit or a case temperature detection circuit is outputting a chip overheating warning signal or a case overheating warning signal.
Naoki Shimizu
Filed: 7 May 19
Utility
Power supply controller with delay adjustment
30 Mar 21
When an input voltage changes due to switching of an AC power supply, as a result of a change in a timing at which an inductor current becomes zero and an element voltage of a switching element becomes local minimum, a switching loss increases.
Yuta Endo
Filed: 24 Oct 19
Utility
Semiconductor device and manufacturing method of semiconductor device
30 Mar 21
A semiconductor device includes: a sealed unit that seals a semiconductor element therein; a connection terminal that is electrically connected to the semiconductor element and is provided so as to project outward from the sealed unit; and a pedestal that is provided to surround a bottom part of an exposed portion of the connection terminal that is exposed from the sealed unit.
Hayato Nakano
Filed: 7 Jan 19
Utility
Coin processor
30 Mar 21
This coin processor includes a sorting portion sorting coins, a coin container containing coins, a first coin outlet employed at least for discharging coins for refund payment, a second coin outlet employed at least for discharging coins for change, and a control portion discharging coins of a prescribed type reaching at least a prescribed number substantially filling up the coin container from the coin container to one of the first coin outlet and the second coin outlet when the number of coins of the prescribed type contained in the coin container reaches at least the prescribed number.
Nobuyuki Niizuma
Filed: 24 Jul 18
Utility
Semiconductor device and method of manufacturing semiconductor device
30 Mar 21
In a method of manufacturing a semiconductor device, selectively forming a first semiconductor region and a fourth semiconductor region to be away from each other in a surface layer of a first principal surface of a semiconductor substrate at a same impurity implantation and impurity diffusion process, selectively forming a second semiconductor region in the first semiconductor region and selectively forming a fifth semiconductor region in the fourth semiconductor region at a same impurity implantation and impurity diffusion process, and selectively forming a third semiconductor region that penetrates the first semiconductor region in a depth direction and selectively forming a sixth semiconductor region that penetrates the fourth semiconductor region in the depth direction at a same impurity implantation and impurity diffusion process.
Yoshiaki Toyoda, Hideaki Katakura
Filed: 5 Jun 20