Abstract: The present invention provides a stacked LED array structure, comprising a substrate and a plurality of LED dies stacked on the substrate in turn. Each LED die comprises a first semiconductor layer and a second semiconductor layer. The first semiconductor layer is provided thereon with a first electrode and stacked with the second semiconductor layer, while the second semiconductor layer is provided thereon with a second electrode and stacked with the first semiconductor layer of another LED die. The second electrode of each LED die is connected to the first electrode of another LED die in series via a metal layer to from an LED array. A plurality of LED dies may be stacked to be an LED array in a stacked manner, resulting in not only easy manufacturing, but also an effectively reduced volume for arranging the whole LED array.

Abstract: A semiconductor device with a bipolar transistor and a capacitor that has a down-sized circuit area is presented. During the manufacture of the bipolar transistor, a polysilicon-insulator-polysilicon capacitor, a polysilicon-insulator-metal layer or a metal-insulator-metal capacitor can be formed on the isolating insulator and/or the protective insulator to achieve reduced circuit area, less manufacturing steps and lowered manufacturing cost.

Abstract: The present invention provides a coilless AC/DC power supply device, comprising: an AC voltage input terminal; a rectifier circuit used to receive and rectifier the input AC voltage so as to output a rectified DC voltage; a charging device, connected to the rectifier circuit at its input terminal and connected to the load at its output terminal; and a voltage detecting device, connected to the output terminal of the charging device at its input terminal and connected in a feedback configuration to the control input terminal of the charging device. In other words, the AC voltage is input into the input terminal and then is performed with full-wave or half-wave rectification by the rectifier circuit exemplified by a bridge full-wave rectifier circuit, so as to obtain a DC voltage. In the present invention, a transformer is not necessary during voltage leveling process. Therefore, complicated winding fabrication is omitted which leads to a reduced fabrication cost.

Abstract: An optical-electronic integrated circuit combining photo detection with an integrated circuit is provided where a light signal input thereto can be directly translated into an electronic signal. The electronic signal can be received and processed by the same integrated circuit. For this optical-electronic integrated circuit, the photo detection circuit is made by a process—a current is generated when the photo detection circuit is impinged by photons.

Abstract: An optical-electronic integrated circuit combining photo detection with an integrated circuit is provided where a light signal input thereto can be directly translated into an electronic signal. The electronic signal can be received and processed by the same integrated circuit. For this optical-electronic integrated circuit, the photo detection circuit is made by a metal-semiconductor-metal process. A current is generated when the photo detection circuit is impinged by photons.