摘要:
Electronic device is provided, including: a base wafer whose surface is made of silicon crystal; a Group 3-5 compound semiconductor crystal formed directly or indirectly on partial region of the silicon crystal; an electronic element including a portion of the Group 3-5 compound semiconductor crystal as active layer; an insulating film formed directly or indirectly on the base wafer and covering the electronic element; an electrode formed directly or indirectly on the insulating film; a first coupling wiring extending through the insulating film, having at least a portion thereof formed directly or indirectly on the insulating film, and electrically coupling the electronic element with the electrode; a passive element formed directly or indirectly on the insulating film; a second coupling wiring extending through the insulating film, having at least a portion thereof formed directly or indirectly on the insulating film, and electrically coupling the electronic element with the passive element.
摘要:
A high-quality GaAs-type crystal thin film using an inexpensive Si wafer with good thermal release characteristics is achieved. Provided is a semiconductor wafer comprising an Si wafer; an inhibiting layer that is formed on the wafer and that inhibits crystal growth, the inhibiting layer including a covering region that covers a portion of the wafer and an open region that does not cover a portion of the wafer within the covering region; a Ge layer that is crystal-grown in the open region; a buffer layer that is crystal-grown on the Ge layer and is a group 3-5 compound semiconductor layer containing P; and a functional layer that is crystal-grown on the buffer layer. The Ge layer may be formed then annealing with a temperature and duration that enables movement of crystal defects.
摘要:
The objective is to improve capabilities such as high-speed switching of a compound semiconductor device. Provided is a semiconductor wafer comprising a silicon wafer; an insulating film that is formed on the silicon wafer and that has an open portion reaching the silicon wafer; a Ge crystal formed in the open portion; a seed compound semiconductor crystal that is grown with the Ge crystal as a nucleus and that protrudes beyond a surface of the insulating film; and a laterally grown compound semiconductor layer that is laterally grown on the insulating film with a specified surface of the seed compound semiconductor crystal as a seed surface.
摘要:
There is provided a method of producing a semiconductor wafer by thermally processing a base wafer having a portion to be thermally processed that is to be thermally processed. The method comprises a step of providing, on the base wafer, a portion to be heated that generates heat through absorption of an electromagnetic wave and selectively heats the portion to be thermally processed, a step of applying an electromagnetic wave to the base wafer, and a step of lowering the lattice defect density of the portion to be thermally processed, by means of the heat generated by the portion to be heated through the absorption of the electromagnetic wave.
摘要:
A method of controlling communication in a communication system includes a plurality of communication devices and a controller that transmits multi-channel data to the plurality of communication devices, executed in a communication device group to which power is supplied without passing through the controller, the method comprising the steps of determining a master communication device in the communication device group that sends the multi-channel data received wirelessly from the controller to other communication device included in the communication device group, according to wireless connection conditions between the controller and each communication device included in the communication device group, and sending, by the master via a wired connection, the multi-channel data received wirelessly from the controller to the other communication device included in the communication device group.
摘要:
A communication apparatus performs communication of data using assigned time slots within a frame. In a case where data cannot be transmitted in a transmission time slot that has been assigned in order to transmit data, a time slot later than this transmission time slot is reserved as a time slot used to transmit the data, this later time slot being reserved within the frame having the transmission time slot in which the data cannot be transmitted.
摘要:
There is provided a method of producing a semiconductor wafer by thermally processing a base wafer having a portion to be thermally processed that has a single-crystal layer and is to be subjected to thermal processing and a portion to be protected that is to be protected from heal, to be added during the thermal processing. The method comprises a step of forming, above the portion to be protected, a protective layer for protecting the portion to be protected from an electromagnetic wave to be applied to the base wafer, and a step of annealing the portion to be thermally processed, by applying the electromagnetic wave to the entire base wafer.
摘要:
A semiconductor wafer including: a base wafer; a seed crystal disposed on the base wafer; a compound semiconductor disposed above the seed crystal; and a high resistance layer disposed between the seed crystal and the compound semiconductor, the high resistance layer having a larger resistivity than the seed crystal, and the seed crystal lattice matching or pseudo lattice matching the compound semiconductor is provided.
摘要:
A high-quality GaAs-type crystal thin film using an inexpensive Si water with good thermal release characteristics is achieved. Provided is a semiconductor wafer comprising an Si wafer; an inhibiting layer that is formed on the wafer and that inhibits crystal growth, the inhibiting layer including a covering region that covers a portion of the wafer and an open region that does not cover a portion of the wafer within the covering region; a Ge layer that is crystal-grown in the open region; a buffer layer that is crystal-grown on the Ge layer and is a group 3-5 compound semiconductor layer containing P; and a functional layer that is crystal-grown on the buffer layer. The Ge layer may be formed by annealing with a temperature and duration that enables movement of crystal defects.
摘要:
The objective is to improve capabilities such as high-speed switching of a compound semiconductor device. Provided is a semiconductor wafer comprising a silicon wafer; an insulating film that is formed on the silicon wafer and that includes an open portion reaching the silicon wafer and having an aspect ratio of √3/3 or more; a seed compound semiconductor crystal that is formed in the open portion and that protrudes beyond a surface of the insulating film; and a laterally grown compound semiconductor layer that is laterally grown on the insulating film with a specified surface of the seed compound semiconductor crystal as a seed surface.