Abstract: A semiconductor structure includes a functional die, a dummy die, a redistribution structure, a seal ring and an alignment mark. The dummy die is electrically isolated from the functional die. The redistribution structure is disposed over and electrically connected to the functional die. The seal ring is disposed over the dummy die. The alignment mark is between the seal ring and the redistribution structure, wherein the alignment mark is electrically isolated from the dummy die, the redistribution structure and the seal ring. The insulating layer encapsulates the functional die and the dummy die.

Abstract: A hybrid RF-acoustic relay is provided where some but not all of the incident RF power is rectified to power the relay and, optionally, to provide power for further link features. The remaining fraction of the incident RF power is used to directly drive an acoustic transceiver array in communication with one or more acoustically powered nodes. In this manner, power, control and communication can be efficiently provided to acoustically powered nodes even in situations where an RF link or an acoustic link would perform poorly.

Abstract: A ventilation device for a building comprising: a first ventilation system, a second ventilation system, a third ventilation system, a fourth ventilation system, a fifth ventilation system, a sixth ventilation system, a seventh ventilation system, an eighth ventilation system, and an air intake system, The first ventilation system, the second ventilation system, the third ventilation system, the fourth ventilation system, the fifth ventilation system, and the air intake system are mounted on a spire of a roof top and tilted roof sheeting of the building. The sixth ventilation system, the seventh ventilation system, and the eighth ventilation system are fixed on a bottom chord and a wall of the building.

Abstract: A ventilation stricture for a building contains: a cover mounted on an exhaust orifice of a roof The cover includes a short extension and a long extension. The long extension has a first tilted section, a second tilted section, a first light transmission plate, a second light transmission plate, a first beveled guide plate extending from a top of the short extension to the cover, a hooked plate extending from a top of the first tilted section of the long extension, an air outlet defined between the beveled guide plate and the hooked plate, at least one atop plate arranged on the air outlet, a side plate located below the beveled guide plate, a second beveled guide plate connected with the side plate and the second tilted section of the long extension, and a drainage hole defined between the second beveled guide plate and the second tilted section.

Abstract: A lens detection system includes a system chip, and the system chip includes a first lens selection pin and a protocol path pin. A lens detection method includes performing a reset step by the system chip; enabling the first lens selection pin by the system chip; detecting a first lens identification code via the protocol path pin by the system chip; loading first lens data by the system chip and entering a first lens operation mode for controlling an externally connected first lens if the first lens identification code is detected; and disabling the first lens selection pin by the system chip if the first lens identification code is undetected.

Abstract: An air circulation apparatus is fixed on a building and contains: multiple intake systems, a first exhaust system, and multiple second exhaust systems. Each of the multiple intake systems includes a first cover, a second cover, an entrance, a first partition, a second partition, a water guide sheet, and a water outlet. The first exhaust system includes two shells, two first orifices, a third partition, two fourth partitions obliquely, and two opposite fifth partitions. Each of the multiple second exhaust systems includes a first lid, a second lid, a second orifice, a fifth partition, a first accommodation plate, a second accommodation plate, a third orifice, two fourth orifices, and a discharge pipe, wherein the first lid has a first extension, and the second lid has a second extension.

Abstract: An air circulation apparatus is fixed on a building and contains: multiple intake systems, a first exhaust system, and multiple second exhaust systems. Each of the multiple intake systems includes a first cover, a second cover, an entrance, a first partition, a second partition, a water guide sheet, and a water outlet. The first exhaust system includes two shells, two first orifices, a third partition, two fourth partitions obliquely, and two opposite fifth partitions. Each of the multiple second exhaust systems includes a first lid, a second lid, a second orifice, a fifth partition, a first accommodation plate, a second accommodation plate, a third orifice, two fourth orifices, and a discharge pipe, wherein the first lid has a first extension, and the second lid has a second extension.

Abstract: A lens detection system includes a system chip, and the system chip includes a first lens selection pin and a protocol path pin. A lens detection method includes performing a reset step by the system chip; enabling the first lens selection pin by the system chip; detecting a first lens identification code via the protocol path pin by the system chip; loading first lens data by the system chip and entering a first lens operation mode for controlling an externally connected first lens if the first lens identification code is detected; and disabling the first lens selection pin by the system chip if the first lens identification code is undetected.

Abstract: Efficient power transmission from an acoustic transmitter to an electrical load on an implanted device is provided using a control system that at least varies the transmitted acoustic frequency. Varying the transmitted frequency can change the electrical impedance of the acoustic transducer in the receiver that receives power from the transmitter. This ability to vary the transducer impedance can be used to optimize power delivery to the load.

Abstract: The present invention provides a semiconductor memory device, includes at least one static random access memory (SRAM) cell, wherein the SRAM cell includes a first pick-up node, and a dielectric oxide SRAM (DOSRAM), disposed in a first dielectric layer and disposed above the SRAM cell when viewed in a cross section view, wherein the DOSRAM includes an oxide semiconductor filed effect transistor (OSFET) and a capacitor, a source of the OSFET is electrically connected to the first pick-up node of the SRAM cell through a via structure, and at least parts of the first dielectric layer are disposed between the source of the OSFET and the via structure, and the capacitor is disposed above the OSFET and electrically connected to a drain of the OSFET when viewed in the cross section view.

Abstract: Efficient power transmission from an acoustic transmitter to an electrical load on an implanted device is provided using a control system that at least varies the transmitted acoustic frequency. Varying the transmitted frequency can change the electrical impedance of the acoustic transducer in the receiver that receives power from the transmitter. This ability to vary the transducer impedance can be used to optimize power delivery to the load.

Abstract: The invention discloses the Schlieren type ultrasonic wave observer system. The invention states optics interference by the ultrasonic wave sound field after perturbation the medium, and combines to make the interference penetration optical projection the image, the goal lies in the observation ordinary naked eye blind ultrasonic wave sound field distribution. Characteristic of the invention using the spectroscope and the reflector combination, as well as microcontroller precise time delay control, might formerly be limited under the 4F optical field length limit to enhance largely the field of vision the several fold.

Abstract: The invention discloses the Schlieren type ultrasonic wave observer system. The invention states optics interference by the ultrasonic wave sound field after perturbation the medium, and combines to make the interference penetration optical projection the image, the goal lies in the observation ordinary naked eye blind ultrasonic wave sound field distribution. Characteristic of the invention using the spectroscope and the reflector combination, as well as microcontroller precise time delay control, might formerly be limited under the 4F optical field length limit to enhance largely the field of vision the several fold.