Abstract: A transistor package includes a power transistor chip having first and second opposite sides. The first side has source, drain, and gate electrode metallizations. A multi-layer laminate substrate includes: a first structured metal layer facing the first side of the chip and electrically connected to the source electrode metallization, the drain electrode metallization, and the gate electrode metallization; a second structured metal layer having a source package terminal pad, a source sense package terminal pad, a drain package terminal pad, and a gate package terminal pad; at least one insulating layer between the structured metal layers; and vias running through the insulating layer and connecting segments of the first structured metal layer to the terminal pads of the second structured metal layer.

Abstract: A method for manufacturing a semiconductor device includes forming a first dielectric layer over a semiconductor fin. The method includes forming a second dielectric layer over the first dielectric layer. The method includes exposing a portion of the first dielectric layer. The method includes oxidizing a surface of the second dielectric layer while limiting oxidation on the exposed portion of the first dielectric layer.

Abstract: Disclosed are a reaction tower, a production system, and a production method for producing potassium manganate. The reaction tower includes a reaction tower body and a bubble generator. The reaction tower body has a reaction chamber. The bubble generator includes an outer housing. The outer housing is disposed in the reaction chamber and has a gas flow channel therein. The outer housing is configured to direct an external reactant gas into the gas flow channel. The outer housing is provided with multiple first pores each having a diameter less than 10 mm, via which the gas flow channel communicates with the reaction chamber. The reaction tower is used in the production system. The reactant gas is introduced into the reaction chamber in the form of small bubbles by the action of the bubble generator, to increase the area of contact of the reactant gas with manganese ore powder and lye.

Abstract: The present disclosure provides a production system and a production method of potassium manganate, belonging to the technical field of production of potassium manganate. The production system of potassium manganate comprises a hot air generating device, a production device and a circulating air pipeline. The hot air generating device is configured provide hot air in a manner of burning fuel gas. The production device is configured to absorb heat in the hot air generated by the hot air generating device. The circulating air pipeline is configured to introduce the hot air passing through the production device into the hot air generating device to adjust temperature of the hot air.

Abstract: Disclosed are a reaction tower, a production system, and a production method for producing potassium manganate. The reaction tower includes a reaction tower body and a bubble generator. The reaction tower body has a reaction chamber. The bubble generator includes an outer housing. The outer housing is disposed in the reaction chamber and has a gas flow channel therein. The outer housing is configured to direct an external reactant gas into the gas flow channel. The outer housing is provided with multiple first pores each having a diameter less than 10 mm, via which the gas flow channel communicates with the reaction chamber. The reaction tower is used in the production system. The reactant gas is introduced into the reaction chamber in the form of small bubbles by the action of the bubble generator, to increase the area of contact of the reactant gas with manganese ore powder and lye.

Abstract: A separated anti-collision car includes a frame and an independent passenger cabin, wherein the independent passenger cabin is arranged on the frame separately, a connected part between a front part of the independent passenger cabin and the frame is provided with a wedge-shaped slope mutually matched with the two, the slope is provided with a damping supporting rod separating the independent passenger cabin from the frame during collision, one end of the damping supporting rod is fixed on the frame, and the other end is connected to the independent passenger cabin; and a back part of the independent passenger cabin is hinged with the frame through an elastic expansion rod.

Abstract: A separated anti-collision car includes a frame and an independent passenger cabin, wherein the independent passenger cabin is arranged on the frame separately, a connected part between a front part of the independent passenger cabin and the frame is provided with a wedge-shaped slope mutually matched with the two, the slope is provided with a damping supporting rod separating the independent passenger cabin from the frame during collision, one end of the damping supporting rod is fixed on the frame, and the other end is connected to the independent passenger cabin; and a back part of the independent passenger cabin is hinged with the frame through an elastic expansion rod.

Abstract: An electronic lock for controlling a lock mechanism includes a processor, a controller coupled to the processor and configured to change a locked/unlocked status of the electronic lock, a first communication receiver configured to receive information indicating a user proximity event relative to the electronic lock, and a transceiver coupled to the processor, the transceiver configured to receive data from a remote application over a network. The processor can be configured to define a geofencing boundary around the electronic lock, transmit the geofencing boundary information to the remote application over the network, receive data from the remote application over the network indicating a geofencing entry or exit event, and transmit an unlock command to the controller if a user's location is within a predetermined distance of the electronic lock and a user geofencing entry event occurred within a first predetermined prior time frame.

Abstract: A dam construction method utilizing refrigerating technology is provided, the method takes natural water as the material to construct the dam and constructs an ice dam body by utilizing the refrigerating technology. The method includes the following steps: choosing the forms and quantity of ice unit bodies, determining the positions and quantity of frozen contact points, manufacturing sufficient ice unit bodies by frozen units, choosing heat insulating material with high performance as the heat preservation layer to cover on the outside of the frozen ice unit bodies; temporarily fixing the ice unit bodies; quickly freezing the seams of the ice unit bodies to form a whole ice dam; mounting temporary generating equipment and completing the temporary dam body; thawing the ice dam body after a permanent dam body is completed.

Abstract: A dam construction method utilizing refrigerating technology is provided, the method takes natural water as the material to construct the dam and constructs an ice dam body by utilizing the refrigerating technology. The method includes the following steps: choosing the forms and quantity of ice unit bodies, determining the positions and quantity of frozen contact points, manufacturing sufficient ice unit bodies by frozen units, choosing heat insulating material with high performance as the heat preservation layer to cover on the outside of the frozen ice unit bodies; temporarily fixing the ice unit bodies; quickly freezing the seams of the ice unit bodies to form a whole ice dam; mounting temporary generating equipment and completing the temporary dam body; thawing the ice dam body after a permanent dam body is completed.