摘要:
A database for design of an integrated circuit device having data stored therein in a flexibly utilizable state, and a method for designing an integrated circuit device using such a database. A virtual core database (VCDB) for storing design data and a VCDB management system (VCDBMS) as a control system are provided. The VCDB includes virtual core (VC) clusters, test vector clusters, and purpose-specific function testing models. The VCDB also includes a system testing database having shared test clusters and peripheral model clusters. The VCDBMS includes a function testing assist section for generating test scenarios, the purpose-specific function testing models, system testing models, and the like, a VC interface synthesis section, and the like.
摘要:
A database, in which data is stored in a flexibly usable state, is provided for use in the design of an integrated circuit device, and a method for designing an integrated circuit device using such a database is also provided. A design environment includes: a virtual core database (VCDB), which is hierarchical design data storage; and a virtual core database management system (VCDBMS) as a control system. The VCDB includes architecture information and a VC cluster. The VC cluster includes: a specification VC for storing therein data at a specification level; an architecture VC for storing therein data at an architectural level; an RTL-VC for storing therein data at a register transfer level; and a performance index used for evaluating the performance of the respective VCs. By providing these VCs for respective layers, new VCs can be generated, data within the VCs can be modified and instances can be generated at the respective levels. As a result, the data can be used flexibly and recycled as well.
摘要:
A simulator capable of counting a number of events occurring in each of functional modules constituting an LSI and calculating an index value for selecting a simulation method for each functional module in simulation of an operation of the LSI with a first test vector set. The simulator further capable of selecting one simulation method among a plurality of simulation methods for each functional module based on the selection index value, and of controlling execution of simulation of the LSI operation with a second test vector set in the simulation method selected for each functional module.
摘要:
A light emitting device is provided with a semiconductor light emitting element and a wavelength conversion portion. The wavelength conversion portion includes an outer peripheral portion between an input surface and an output surface. The outer peripheral portion includes a first inclined part at a side of the input surface and a second inclined part at a side of the output surface. The first inclined part and the second inclined part define a projecting portion that is projected on the outer peripheral portion.
摘要:
A light emitting module includes: a plurality of semiconductor light emitting elements; a substrate by which the arranged plurality of semiconductor light emitting elements are supported; and a plate-shaped light wavelength conversion component that is provided so as to face the light emitting surfaces of the plurality of semiconductor light emitting elements and that converts the wavelength of the light emitted by the semiconductor light emitting element. A phosphor layer has a shielding portion formed in the boundary between respective areas facing the respective light emitting surfaces of the adjacent semiconductor light emitting elements.
摘要:
In a light emitting module board, an electrode receiving the supply of current for light emission is provided in the light emitting surface of a semiconductor light emitting device. A light wavelength conversion member is a plate-like member mounted on the light emitting surface, and emits light after converting the wavelength of the light emitted by the semiconductor light emitting device. A relay electrode is provided in the surface of the light wavelength conversion member. The relay electrode extends from a position in contact with the electrode to an exposed position in the external space in a state where the light wavelength conversion member is mounted on the light emitting surface. The relay electrode is provided so that the upper part of the relay electrode, which is the exposed position, extends to a position located opposite to the lower part of the relay electrode which is the contacted position.
摘要:
A light emitting module includes a board on which a plurality of light emitting devices are mounted, a first interconnecting section having first interconnections, one end of each of which being connected to one of an anode side and an cathode side of an associated one of the light emitting devices, a second interconnecting section having second interconnections, one end of each of which being connected to the other of the anode side and the cathode side of an associated one of the light emitting devices, and a power supply portion provided along one side of the board to receive an external power. The second interconnecting section has at least one, but less than the number of the second interconnections, collectively interconnecting portion to which another end of each of the second interconnections is connected.
摘要:
A light emitting module includes: a plurality of semiconductor light emitting elements; a substrate by which the arranged plurality of semiconductor light emitting elements are supported; and a plate-shaped light wavelength conversion component that is provided so as to face the light emitting surfaces of the plurality of semiconductor light emitting elements and that converts the wavelength of the light emitted by the semiconductor light emitting element. A phosphor layer has a shielding portion formed in the boundary between respective areas facing the respective light emitting surfaces of the adjacent semiconductor light emitting elements.
摘要:
A light emitting module includes: light emitting elements arranged with a distance interposed therebetween, each of the light emitting elements includes: a first light emitting surface, and second light emitting surfaces bordering the first light emitting surface; optical wavelength conversion members that convert a wavelength of light emitted from corresponding light emitting elements; and a reflecting member that extends from a gap between adjacent light emitting elements to a gap between the adjacent optical wavelength conversion members so as to surround each of the light emitting elements and so as to separate the adjacent light emitting elements. The reflecting member includes reflecting surfaces that respectively face each of the second light emitting surfaces. Each of the reflecting surfaces is inclined such that a distance between the reflecting surface and the second light emitting surface that the reflecting surface faces is gradually increased toward the optical wavelength conversion member.
摘要:
A white light emitting device includes a semiconductor light emitting element that has a peak of an emission spectrum in a range of 370 nm to 480 nm, and at least one kind of phosphor that is excited by light emitted from the semiconductor light emitting element to emit visible light. The phosphor is represented by the formula: Sr1-x-yBaxSi2O2N2:Eu2+y, wherein x is in the range of 0.3