997 patents
Page 47 of 50
Utility
Solder joining
9 Dec 19
The present invention suppresses fracture at an interface between different materials, and provides a solder joining which includes: a solder joining layer 10 having a melted solder material, containing Sb at more than 5.0% by mass and 10.0% by mass or less, Ag at 2.0 to 4.0% by mass, Ni at more than 0 and 1.0% by mass or less, and a balance made up of Sn and inevitable impurities; and joining members 11 and 123 at least one of which is a Cu or Cu-alloy member 123, in which the solder joining layer includes a first structure 1 containing (Cu, Ni)6(Sn, Sb)5 and a second structure 2 containing (Ni, Cu)3(Sn, Sb)X (in the formula, X is 1, 2, or 4) at an interface with the Cu or Cu-alloy member 123, and an electronic device and a semiconductor device including the solder joining.
Hirohiko Watanabe, Shunsuke Saito, Yoshihiro Kodaira
Filed: 30 May 18
Utility
Semiconductor device including a shoulder portion and manufacturing method
9 Dec 19
A semiconductor device including a semiconductor substrate; a trench formed in a front surface of the semiconductor substrate; a gate conducting portion formed within the gate trench; and a first region formed adjacent to the trench in the front surface of the semiconductor substrate and having a higher impurity concentration than the semiconductor substrate.
Tatsuya Naito
Filed: 4 Sep 16
Utility
Switch apparatus
9 Dec 19
A drive circuit that operates stably and has a small circuit size.
Shigemi Miyazawa
Filed: 29 Nov 16
Utility
Driving apparatus and switching apparatus
9 Dec 19
A driving apparatus including: gate driving circuit to drive gates of a first semiconductor element and a second semiconductor element connected in series between a positive side power supply line and a negative side power supply line; a first timing generating circuit to generate a first timing signal when voltage applied to the second semiconductor element becomes reference voltage during a turn-off period of the first semiconductor element; and a first driving condition change circuit, wherein the gate driving circuit relaxes change in a charge amount of the gate of the first semiconductor element, according to the first timing signal.
Kunio Matsubara, Hirotoshi Kaneda
Filed: 17 Apr 18
Utility
Door opening/closing device
2 Dec 19
A door opening/closing device includes: an opening/closing bar attached to a door, which is actuated by a motor and is used for opening and closing the door; a door closing state detecting part configured to detect whether the door is in a closed state; a locking device configured to lock and unlock the door; a lock pin capable of being moved to a locked position or an unlocked position by the locking device; an engaging member attached to the opening/closing bar, which includes an engaging part configured to engage with the lock pin moved to the locked position; a first spring provided between the opening/closing bar and the engaging member; and a locking control unit configured to cause the locking device to lock the door when the closed state is detected by the door closing state detecting part.
Kenji Fujita, Atsushi Kitabata
Filed: 16 Apr 19
Utility
Semiconductor device and a method of manufacturing the same
2 Dec 19
A semiconductor device has a U terminal with an internal joint portion at one end that is joined to a circuit board, an intermediate portion that is embedded in a case, and an external joint portion at another end that is exposed from the case, the U terminal being provided with a shock absorbing portion that is positioned between an inner surface of the case and the internal joint portion and absorbing stress that acts upon the internal joint portion.
Yuta Tamai, Fumihiko Momose
Filed: 15 Jun 17
Utility
Semiconductor device
2 Dec 19
A current sensing part that detects overcurrent of a main semiconductor element is arranged on a same silicon carbide base as the main semiconductor element.
Yasuyuki Hoshi, Takashi Shiigi, Shoji Yamada
Filed: 23 May 18
Utility
Drive circuit and semiconductor module utilizing a capacitance ratio between different switches
2 Dec 19
A drive circuit, including a first switch located on a low side of the drive circuit, a second switch located on a high side of the drive circuit and connected in series with the first switch, the first switch and the second switch forming an output circuit, each of the first and second switches having a high-potential end, a low-potential end and a gate terminal, a control unit that controls switching operations of the first switch and the second switch, and a capacitive element having two ends thereof respectively connected to the gate terminal of the second switch and the low potential end of the first switch.
Tadahiko Sato
Filed: 25 Jun 18
Utility
Operation control apparatus for crane
25 Nov 19
An operation control apparatus for a crane for moving a suspended load in vertical and horizontal directions to a target position includes: a trajectory creating unit configured to create in advance a movement trajectory of the suspended load; a function creating unit configured to create a function indicating a relationship between a horizontal direction position and a height in the trajectory; a vertical direction command value updating unit configured to generate a vertical direction position command value by sequentially updating, in accordance with the horizontal direction position and based on the function, the vertical position at which the load should be present; a vertical direction control unit configured to generate a vertical direction speed command value based on the position command value; and a vertical direction driving unit configured to move the load in the vertical direction in accordance with the speed command value.
Takashi Hayashi
Filed: 21 Oct 18
Utility
Method of manufacturing semiconductor device
25 Nov 19
A back alignment mark on a surface of a semiconductor substrate is detected and a resist mask patterned into a circuit pattern corresponding to a surface element structure is formed on a back of the semiconductor substrate.
Naoko Kodama
Filed: 21 Oct 18
Utility
Silicon carbide semiconductor device and method of manufacturing silicon carbide semiconductor device
25 Nov 19
A silicon carbide semiconductor device includes a silicon carbide semiconductor substrate, a first semiconductor layer, a first semiconductor region, a second semiconductor layer, a second semiconductor region, a third semiconductor region, a fourth semiconductor sub-region, a first electrode, a gate insulating film, a gate electrode, and second electrode.
Shin'ichi Nakamata, Takashi Shiigi, Yasuyuki Hoshi, Yuichi Harada
Filed: 29 Mar 18
Utility
Insulated-gate semiconductor device and method of manufacturing the same
25 Nov 19
An insulated-gate semiconductor device, which has trenches arranged in a chip structure, the trenches defining both sidewalls in a first and second sidewall surface facing each other, includes: a first unit cell including a main-electrode region in contact with a first sidewall surface of a first trench, a base region in contact with a bottom surface of the main-electrode region and the first sidewall surface, a drift layer in contact with a bottom surface of the base region and the first sidewall surface, and a gate protection-region in contact with the second sidewall surface and a bottom surface of the first trench; and a second unit cell including an operation suppression region in contact with a first sidewall surface and a second sidewall surface of a second trench, wherein the second unit cell includes the second trench located at one end of an array of the trenches.
Keiji Okumura
Filed: 24 Oct 18
Utility
Semiconductor device and semiconductor device manufacturing method
25 Nov 19
Protons are injected from a back surface side of a semiconductor substrate to repair both defects within the semiconductor substrate and also defects in a channel forming region on a front surface side of the semiconductor substrate.
Yuichi Onozawa
Filed: 28 Aug 16
Utility
Controller for AC electric motor
18 Nov 19
A controller for an AC electric motor includes an acquirer that acquires at least one of a frequency of an output voltage of a power converter and an estimated value of a rotational speed of the AC electric motor, and a frequency component remover that removes a predetermined frequency component from an acquired value by feedforward control, using the acquired value acquired by the acquirer as an input value.
Hirokazu Tajima
Filed: 23 Jul 18
Utility
Semiconductor device with sealing portion to suppress connection corrosion
18 Nov 19
To enhance the reliability of a semiconductor device.
Yoshihiro Yasuda
Filed: 22 Nov 17
Utility
Semiconductor device, starter circuit, and switched-mode power-supply circuit
18 Nov 19
A semiconductor device includes a p-type semiconductor substrate; an n-type drift layer on the substrate; an n-type drain region in contact with the drift layer to be provided on the semiconductor substrate at a center of the drift layer; a p-type gate region on the substrate in an outer side of the drift layer, the gate region including U-shaped first and second concave patterns in a planar pattern, each having entrances of the U-shapes located with equal distances from the drain region, the bottoms of the U-shapes protruding toward an outer side of the planar pattern; n-type source regions in an inner side of the first concave patterns, each of the source regions contacts with the drift layer and the gate region; and n-type surge-current guiding-regions in an inner side of the second concave patterns, each of the surge-current guiding-regions contacts with the drift layer and the gate region.
Taichi Karino
Filed: 25 Jul 18
Utility
Insulated gate semiconductor device and method of manufacturing same
18 Nov 19
An insulated gate semiconductor device includes p+ gate bottom protection regions embedded in a drift layer at the bottoms of trenches that goes through n+ source regions and p-type base regions, and p+ base bottom embedded regions embedded in the drift layer below the base regions.
Keiji Okumura
Filed: 7 May 18
Utility
Semiconductor device
18 Nov 19
A semiconductor device including: a semiconductor substrate having a drift region of the first conductivity type; a cathode region formed on the lower surface of the semiconductor substrate; a diode portion having the cathode region formed on the lower surface of the semiconductor substrate; the first dummy trench portion provided from the upper surface of the semiconductor substrate to the drift region, including one part provided inside the diode portion and the other part provided outside the diode portion, and provided extending in series from inside the diode portion to outside the diode portion in a predetermined extending direction on the upper surface of the semiconductor substrate; and the first lead-out portion that is provided on the upper surface of the semiconductor substrate, and electrically connected to the first dummy trench portion outside the diode portion is provided.
Mutsumi Kitamura, Tohru Shirakawa
Filed: 19 Sep 18
Utility
Loose component supply device and component mounter
18 Nov 19
Kazuma Ishikawa
Filed: 2 Jun 14
Utility
Beverage supply device
11 Nov 19
A beverage supply device applied to a beverage dispenser providing a beverage to a beverage container and has a beverage supply route for supplying a milk beverage to the beverage container, includes a washing unit to, in response to a washing instruction, mix an undiluted wash fluid with a wash hot water to generate a wash fluid, the undiluted wash fluid being supplied from an undiluted wash fluid accommodating unit configured to accommodate the undiluted wash fluid, the hot water being supplied from a hot water storage unit configured to stores the hot water which is for generating pressurized steam for forming the milk beverage, supply the wash fluid to the beverage supply route communicating with the washing unit, and supply the hot water supplied from the hot-water storage unit to the beverage supply route as a rinse hot water.
Yukihide Mochida
Filed: 29 Nov 16