摘要:
An optical transceiver module and a method for manufacturing thereof, which are adopted for providing a reduced manufacturing cost and an improved signal quality, are achieved. The optical transceiver module 1 includes a VCSEL 13 that is capable of emitting light; a thermoplastic resin layer 22 provided on the VCSEL 13 and transparent to the above-described light; a copper foil 21, provided in the thermoplastic resin layer 22 and the resin layer, and having an opening 21a that is transparent to light; a dimple 22a, provided in a surface of the thermoplastic resin layer 22 in a side opposite to the VCSEL 13; and a lens provided in the dimple. The dimple 22a is located above the opening 21a.
摘要:
A semiconductor package has a semiconductor device chip and a flexible substrate having a thermoplastic insulating resin layer. An electrode provided on the flexible substrate is connected to a predetermined electrode of the semiconductor device chip and sealed by the thermoplastic insulating resin layer. The flexible substrate is bent and provided with electrodes on the electrode-bearing and other surfaces. The flexible substrate has multi-layered wirings. Grooves or thin layer portions having a different number of wiring layers are formed at bends of the flexible substrate or regions including the bends, thereby creating a cavity at a portion in which a semiconductor device is packaged. Then, the flexible substrate is bent at predetermined positions to form a semiconductor package which does not depend on the outer dimensions of the semiconductor device chip.
摘要:
A method of generating a value for a missing pixel “x” by determining a “least harmful” local edge direction between pixels, or sub-pixels, on substantially opposing sides of the missing pixel, and interpolating the difference to arrive at a value for pixel “x”. The method involves generating sub-pixel values for locations within neighboring pixels, the sub-pixels may comprise half-pixels, quarter-pixels, three-quarter pixels, and so forth, wherein any fractional pixel quantity may be created. Absolute difference values are calculated between neighboring pixels, or sub-pixel values, to determine a least harmful local edge direction along which a value is generated for pixel “x” by interpolation.
摘要:
A capacitor has a lower electrode, a dielectric thin film, an upper electrode, and an insulation cover layer formed on an insulation substrate made of an organic film or a ceramic material, and through holes formed at positions corresponding to input and output pads of a semiconductor element or to input and output terminals of a semiconductor package, with electrodes for connection to input and output pads of a semiconductor element or to input and output terminals of a semiconductor package provided within through holes. In a method for mounting the capacitor, the capacitor is interposed between a flip-chip connected semiconductor element and a mounting substrate.
摘要:
The present invention provides a conductive rubber composition with a low hardness and low distortion, and exhibiting less variations in volume specific resistance value and less dependence on environment, a manufacturing method thereof, and further, a conductive rubber member using the same. The conductive rubber composition of the present invention contains a particulate polymer (A1, crosslinked particulate polymer, and the like), an uncrosslinked polymer (A2), and a conductivity imparting agent (B). The particulate polymer (A1) is a nonpolar polymer (SBR, and the like), the uncrosslinked (A2) is a polar polymer (NBR, and the like), and the more conductivity imparting agent (B) exists in the uncrosslinked polymer than in the crosslinked particulate polymer. This composition can be obtained by starting the kneading of the above-described respective compounds at such a temperature (T C.) that the Mooney viscosity of the uncrosslinked polymer is equal or less than the Mooney viscosity of particulate polymer. The particulate polymer (A1) preferably has an average particle diameter of 25 mm or less, and a Duro A hardness of 45 to 80. The conductive rubber member, according to the present invention, can be obtained by molding the above-described conductive rubber composition and then vulcanizing it.
摘要:
To provide a parallel processor apparatus which can perform processing with a good efficiency on signals comprised of data of different lengths. A parallel processor configured by a serial connection of a first parallel processor and a second parallel processor having n number of individual processors and (m-n) number of individual processors. For signals comprised of data of a length, serving as the unit of processing, of m or less and n or more, these parallel processors are connected and used as a single parallel processor apparatus which performs processing equivalent to that by a conventional parallel processor apparatus. For signals comprised of data of a length of n or less, these parallel processors are independently used to perform pipeline processing and thereby perform two times the amount of processing of that performed by a conventional parallel processor apparatus.
摘要:
A multiplying circuit for forming a partial product in accordance with a Booth's algorithm, performing a sign correcting process of the partial product, and adding the partial product so as to multiply a multiplicand by a multiplier, includes: initial value setting circuit for setting an initial value and for supplying data necessary for the sign correcting process and adding circuit for adding the partial product and data supplied from a preceding circuit. The initial value setting circuit is adapted to output the data necessary for the sign correcting process in a format where the data accords with at least a part of a data input format of the adding circuit. In the adding circuit at least a part of a data input format of data thereof is the same as at least a part of a data output format thereof. According to the multiplying circuit, in the initial value setting circuit, data necessary for a sign correcting process, that is, calculating the complement of 2, of a partial product is converted into a format compatible with a data input format of an adding circuit. The resultant data is supplied to the adding circuit.
摘要:
In order to improve mixing efficiency of highly viscous fluid, while structural simplicity being maintained, two types of stirring impellers are employed in a single stirring apparatus. One of such stirring impellers is a large flat impeller and the other is a slanted or screw-shaped impeller to cause an up-and-down flow. This principle is further utilized in a stirring tower type polymerization reaction apparatus which has an array of mixing areas, each of which corresponds to the stirring apparatus above, and partitions between the mixing areas. The partitions are disposed so that the temperature of reaction can be controlled easily. Undesirable effects such as "dead space", space in which flow is insufficient, and the attachment of gelled material to the rotational shaft can be avoided while rather obvious, but no less important, advantages of efficient and uniform mixing, etc., are secured.
摘要:
A digital adder circuit has a plurality of adders for adding binary numbers. A carry calculator calculates carry data to a higher bit on the basis of added results of the plurality of adders, and a carry corrector adds the carry data to the added results of the plurality of adders. An accumulator accumulates a plurality of binary numbers sequentially supplied thereto. The accumulator includes more than two adders of a plurality of bits, a delay register for delaying each of outputs and each of carry outputs of the adders by a predetermined time. The binary numbers sequentially supplied thereto and a delayed output of the delay register are sequentially added by the adders, and a carry corrector supplied with an accumulated result expressed as redundant by each of outputs of the adders corrects each of the outputs by each of the carry outputs to generate an accumulated added result having no redundancy. Thus, the digital adder circuit and the accumulator can perform calculations at high speed without substantially increasing the size of the circuit.
摘要:
A digital filter has an input terminal provided with an input digital signal. A delay circuit connected to the input terminal produces a plurality of delayed digital signals each having a different delay time with respect to the input digital signal. A first circuit adds the input digital signal and/or the plurality of delayed digital signals to one or more digital coefficient signals of the same value so as to produce one or more added digital signals. A circuit multiplies the one or more respective digital coefficient signals by the one or more added digital signals and/or one or more of the plurality of delayed digital signals to produce a plurality of multiplied digital signals. A second circuit adds the plurality of multiplied digital signals to produce an output digital signal, and a circuit connected between the delay circuit and a multiplying circuit increases the one or more added digital signals and/or the one or more of the plurality of delayed digital signals by one or more predetermined numbers of times, whereby the one or more respective digital coefficient signals have inversely proportional values corresponding to the one or more predetermined numbers of times of the values of the one or more added digital signals and/or the one or more of the plurality of delayed digital signals.