摘要:
An optoelectronic integrated circuit device which has less signal damping and signal transmission loss is provided. The optoelectronic integrated circuit device of the present invention includes a first optoelectronic integrated circuit and a second optoelectronic integrated circuit. Each of the first optoelectronic integrated circuit and the second optoelectronic integrated circuit includes an electric circuit unit, an optical output terminal unit, and an optical input terminal unit. The first optoelectronic integrated circuit and the second optoelectronic integrated circuit are arranged so that each optical output terminal unit faces each corresponding optical input terminal unit. In this arrangement, light signal transmission can be carried out between a plurality of optoelectronic integrated circuit devices. Thus, signal damping and transmission loss can be reduced, and signal transmission delay time can be shortened.
摘要:
The prevent invention relates to a collective connection structure, optical connector arraying member, and adapter, which are suitable for application in the field of optical transmission, and which are able to collectively, easily and accurately connect a plurality of optical connectors with fewer number of parts. Optical connectors (3a) through (3f) and (4a) through (4f) corresponding to the first and second plugs (5) and (6) are arrayed and accommodated in a float-like state. The tip ends of the respective optical connectors protrude from the tip end of the first and second plugs (5) and (6) corresponding thereto. The connection end face (45) side of the respective optical connector groups (3) and (4) is inserted from both sides of the adapter (8) along guides (31) and (33) at both sides of the adapter (8). The optical connectors of the respective connection pairs are position-regulated in the X direction orthogonal to the optical axis and Y direction, thereby causing the axes to be matched, wherein the optical connector groups (3) and (4) are collectively connected via the adapter (8).
摘要:
A sample signal is sequentially transported through a plurality of serial shift registers in respective data channels. The sample signal varies between a pair of levels, namely a first level and a second level, to resemble a step with respect to time. The shift registers are monitored by a skew detection circuit to identify the shift register that receives the sample signal at the time of a generated timing signal. Data signals are then passed through the recorded shift register while compensating for detected skew in parallel transmission data.
摘要:
Provided is a method of manufacturing a resin molded gear, which is to be integrally formed by injection molding, and includes: a tooth portion formed along an outer peripheral surface of a rim; a web extending along an inner peripheral surface of the rim; and a gate portion arranged at a boss, which joins to at least part of the web and is formed on a core portion located at a center axis, the method using a synthetic resin having a melting temperature of Tm° C., the method including: injecting and loading the synthetic resin molten at the melting temperature of Tm° C. into a cavity of a mold for forming the resin molded gear; and setting, when the gate portion is solidified, a thickness center temperature T1 of the web to (Tm−20)° C. or more to (Tm+20)° C. or less and a surface temperature T2 of the tooth portion to (T1−50)° C. or less.
摘要:
A liquid epoxy resin composition for semiconductor encapsulation comprising: (A) at least one epoxy resin, (B) at least one curing accelerator and (C) at least one acid anhydride terminated polyamic acid. The liquid epoxy resin composition provides a cured material that has an excellent adhesiveness to a semiconductor chip surface and has an excellent moisture resistance.
摘要:
Provided is a method of manufacturing a resin molded gear, which is to be integrally formed by injection molding, and includes: a tooth portion formed along an outer peripheral surface of a rim; a web extending along an inner peripheral surface of the rim; and a gate portion arranged at a boss, which joins to at least part of the web and is formed on a core portion located at a center axis, the method using a synthetic resin having a melting temperature of Tm° C., the method including: injecting and loading the synthetic resin molten at the melting temperature of Tm° C. into a cavity of a mold for forming the resin molded gear; and setting, when the gate portion is solidified, a thickness center temperature T1 of the web to (Tm−20)° C. or more to (Tm+20)° C. or less and a surface temperature T2 of the tooth portion to (T1−50)° C. or less.
摘要:
A mask blank manufacturing department manufactures a mask blank by forming a thin film to be a mask pattern on a mask blank transparent substrate. When providing the mask blank to a mask manufacturing department, the mask blank manufacturing department provides optical characteristic information (transmittance variation) of the mask blank transparent substrate and optical characteristic information (transmittance variation and/or phase difference variation) of the mask blank to the mask manufacturing department. The optical characteristic information of the mask blank transparent substrate is provided to the mask blank manufacturing department from a materials processing department that manufactures mask blank transparent substrates.
摘要:
An image reading system includes an information processing apparatus and a scanner connected to the information processing apparatus via a network. Upon receiving input of information that specifies the number of pages to be included in a file through an input unit and a web browser, the information processing apparatus transmits the information through a first communication unit to the scanner. The scanner reads image data through a reading unit, and divides the image data into files based on the information through a data management unit. The scanner transmits the files to the information processing apparatus through a second communication unit. The information processing apparatus displays images of the files on a monitor.
摘要:
In flip chip attach of electronic components, underfill is filled between the component and the substrate to alleviate, for example, thermal stress. In electronic component mounting using copper pillars conducted so far, filler contained in the underfill may cause separation in the process of heating and curing the resin. Disclosed is plating the surfaces of the copper pillars with solder. Mobilization of the filler charged in the underfill due to electric fields produced by local cells that are developed upon contact between dissimilar metals, is suppressed, and occurrence of crack at connection portions is obviated. Thus, connection reliability is increased.
摘要:
A technology for effectively preventing deformation of a light reflector plate fabricated by forming a synthetic resin reflector plate into a three-dimensional shape enabling a thinner light reflector plate, and additionally, reducing processing costs is provided. An adhesive tape for shape-retention is adhered onto a reflector plate which is fabricated by forming predetermined areas of a light-reflecting plastic film or sheet into a three-dimensional shape.