Metida

A trench metal-oxide-semiconductor field-effect transistor (MOSFET) structure and a manufacturing method thereof are provided. The trench MOSFET structure includes an N+ substrate (100), an N- drift region (110), a P-type base region (120), a source metal (400) and a drain source. An N+ source region (140) is disposed on an upper portion of the P-type base region (120). P + regions (130) are respectively disposed on two sides of the N+ source region (140). A trench gate structure is formed in the middle portion of the N+ source region (140). The trench gate structure penetrates the N+ source region (140) downwards and extends into the P-type base region (120). A bottom portion of the trench gate structure is connected to the N- drift region (110) by an N-type region (150). The N-type region (150) is N-type doped. An interlayer dielectric layer (300) is covered on the trench gate structure.

The present disclosure relates to a slant rod folding mechanism for an electric scooter, including a pedal frame, a slant rod and a folding device, the slant rod including an upper slant rod and a lower slant rod, the upper slant rod and the lower slant rod being connected via the folding device, and the upper slant rod being able to rotate via a pin shaft. The folding device includes a handle, a first hinge portion, a second hinge portion, and a tension adjustment portion. The first hinge portion includes a push-pull locking block I, a joint middle latch, and a tension spring. The push-pull locking block I is hinged with the handle and is provided with a joint middle latch capable of extending out of the upper slant rod and being clamped in a clamping slot.

A controller grip is configured to be detachably connected to two game controllers. The controller grip includes a central unit and two connection units respectively arranged on two opposite sides of the central unit. A direction from one of the connection units towards another connection unit is defined as a first direction; the two connection units extend at least partially along a second direction, and the second direction is perpendicular to the first direction. A magnetic member is provided inside each connection unit, and the magnetic member is configured to attract a magnetic component in the game controller, enabling the game controllers to be detachably connected to the connection units respectively.

The invention provides a system and method for secure, intent-based authentication in access control applications, ensuring access is granted only when a user's natural movement and environmental conditions are verified. It prevents relay attacks and position spoofing by integrating motion trajectory analysis with wireless signal authentication. The system includes a user device (smartphone or wearable) equipped with inertial sensors (accelerometer, gyroscope, barometer) and short-range wireless communication (BLE, UWB). It interacts with external and internal stationary devices at the access point, which facilitate wireless authentication and environmental verification. A processing unit evaluates movement patterns and signal data to define an authentication signature. The method involves detecting and verifying a user's motion trajectory and environmental conditions while approaching an access point. By ensuring authentication signals alone are insufficient, the invention enhances security and user convenience, particularly in hands-free access control environments, effectively preventing unauthorized access.

The present invention provides a control system (100) for an engine including a distributed electronic assembly (102). The distributed electronic assembly (102) includes a first electronic substrate (104) and a second electronic substrate (106) different from the first electronic substrate (104). The first electronic substrate (104) is configured with a first sectored architecture comprising a plurality of first sectors (108), and the second electronic substrate (106) is configured with a second sectored architecture comprising a plurality of second sectors (110). Further, communication between the first electronic substrate (104) and the second electronic substrate (106) is performed through electrical interface harnesses (112), thereby enabling coordinated and hassle-free operation of electronic modules positioned at different locations relative to the engine.

An IGBT device having a power clamping function and a method for manufacturing the same are provided. The IGBT device includes a P region (100), an N-type buffer region (210), an N-drift region (220), a P-type body region (310), N+ regions (330), P+ regions (320), front gate trench structures (500), a collector metal (800) and an emitter metal (600). The collector metal (800) is connected to SBR gate trench structures (700). The SBR gate trench structures (700) are configured to suppress a decrease in a resistance of the N- drift region (220) when an induced voltage on the IGBT device exceeds a predetermined threshold. By providing the SBR gate trench structures (700), when subjected to a large voltage surge, the IGBT device limits a decrease of a resistance of the N- drift region (220), preventing a significant increase in current flowing through the IGBT device.

A protective package device, configured to protect a device, includes a first housing comprising a first receiving chamber for receiving the device; a second housing comprising a second receiving chamber. Wherein the first housing is capable of being assembled to the second receiving chamber, with the first receiving chamber facing to the second receiving chamber; and at least one storage unit is provided on one side of the second housing facing the second receiving chamber, and the at least one storage unit is used to store cards.

Disclosed are a collaboratively foldable and unfoldable carry cot and a baby stroller, having an unfolded use state and a folded use state, including a frame assembly (1), a base frame assembly (2), a front linkage assembly (3), a rear linkage assembly (4), and a vertical slide rod (5); the front frame and the rear frame are rotatably connected via a frame joint (13), and a joint avoidance slot (1311) is provided on the front joint block (131) or the rear joint block (132), such that the front joint block or the rear joint block is rotatably and slidably constrained to the vertical slide rod; the front joint block and the rear joint block slide along the vertical slide rod, and the front joint block or the rear joint block having the joint avoidance slot rotates relative to the vertical slide rod around the joint pivot shaft of the frame joint.

A method for preparing a solar cell (100) includes providing an N-type silicon substrate (11) with alternating first regions (A1) and second regions (A2) on a first surface (11a). A first stack (12) including a first tunneling layer (121), a boron-doped polysilicon layer (122), and a first mask layer (123) is formed and selectively removed in second regions (A2) and intermediate regions (G) to create arc-shaped grooves (11r). A second stack (13) with a phosphorus-doped polysilicon layer (132) is then deposited over the entire first side. After removing wrap-around coating on the second surface (11b), portions of the second stack (13) are removed from first regions (A1) and intermediate regions (0). Finally, both mask layers (123, 133) are stripped.

The disclosure relates to the field of panel connection technology and particularly discloses a connecting assembly, a drawer connecting device, and a drawer. Herein, the connecting assembly comprises the base plate, the rotatable latch, and the elastic component. The rotatable latch is connected to the base plate and rotatable about the first axis to enter the unlocking or locking state. The rotatable latch is provided with the slot that has an opening at one end. When the insert is inserted into the connecting assembly in the first direction, the lock component of the insert can be engaged into the slot through the opening, allowing the rotatable latch and the insert to form the locking state. Furthermore, the insert and the rotatable latch can remain in the locking state in which the insert cannot be withdrawn from the rotatable latch. The disclosure has a simple structure, and is safe and reliable. When the insert is pulled in the direction opposite to the first direction, it can prevent loosening between the panels without the need for bolts or other fastening members for fastening, thereby improving user experience.