Disclosed herein is a high thermal emissive semiconductor device package which comprises a substrate having a plurality of external connection leads, a plurality of connection lands and wires between the leads and the lands; at least one semiconductor chips mounted on the substrate; bonding wires electrically connecting bonding pads of the chip and the connection lands of the substrate; a heat spr...

A discrete element electronic package (100) includes a heat spreader (180) with a cavity (185) for receiving a substrate (110), a substrate (110) mounted within the cavity (185) of the heat spreader (180), a heat-generating semiconductor device (170), such as a power transistor (170), mounted on the substrate (110), and electrical connectors (140) located on the substrate (110) to provide an elect...

A resin molded type semiconductor device has a metallic guard ring that is formed to cover the peripheral edge of the surface of a tetragonal semiconductor substrate. In order to prevent a passivation film on the guard ring from being cracked by stresses due to a resin mold package concentrating in the four corners of the semiconductor substrate, slits or rows of small holes are formed in the corn...

An illumination system with a panel that is capable of producing electroluminescence as well as reflecting incident light independent of the electroluminescence function of the panel. A layer of phosphor is excited by a power source, and a reflective layer disposed on top of the phosphor layer reflects incident light from an outside light source. The reflective layer is transparent and does not in...

A method of and an apparatus for thermally recording an image on a thermo-sensitive recording medium. The apparatus comprises a heating mechanism for applying the thermo-sensitive recording medium with a coloring thermal energy to record the image, a conveying mechanism for moving the recording medium in a sub-scanning direction, a moisture content adjusting mechanism for adjusting the moisture co...

The quality of an image can be improved by adjusting the print. When a carriage of an electrographic device is conveyed in a perpendicular direction to the feeding direction of the recording paper for exposure, development and photographic fixing, temperature and/or himidity is detected to determine an absolute humidity. The feeding amount of the paper is altered. A new feeding amount of the recor...

PROBLEM TO BE SOLVED: To exactly close the opening of a curving container by a pull tab by putting the pull tab on opening and bonding the pull tab to the surface of a container wall while following up to the curving container wall. SOLUTION: The pull tab 8 is put on the aperture 6 of the container wall 9. The pull tab 8 is heat sealed to the container wall 9 by a bonding device 70. The abutment s...

PROBLEM TO BE SOLVED: To simply and rapidly bond polymer substrates having an arbitrary shape by coating one substrate with a microwave absorbing medium at the boundary surface to other substrate in a method for thermally bonding two polymer substrates while using the microwave absorbing medium. SOLUTION: When plastic substrates are bonded, at least one substrate is directly coated with a microwav...

PURPOSE: To increase the engaging part of an upper rail and a lower rail, and to omit a welding work, by inserting a ratch to a ratch hole for locking at the upper part of the vertical wall of the upper rail, or to either one of plural lock holes formed along the front end to the rear end in the longitudinal direction of the lower rail. CONSTITUTION: A lower rail 12 is composed of a main body 12c ...

PURPOSE: To provide a fixing device of seat for vehicle which can respond to various seat settings easily, requires no reforming work when the seat setting is converted, never hurts the floor material, and has a fine appearance. CONSTITUTION: At the upper end of a connecting member 17 to connect a floor member 15 at the upper side and a floor member 16 at the lower side, a rail 23 furnishing a lin...

PURPOSE: To obtain a colored artificial aggregate having clear hue and excellent wear resistance, durability, mechanical strength and dislocation resistance, etc., by specifying an aggregate composition in the aggregate derived from burning a mixture of porcelain body with a prescribed pigment. CONSTITUTION: The objective aggregate is made to have a dense structure by including <=0.15 wt.%, prefer...

PURPOSE: To obtain a repairing material capable of imparting an early strengthening property to the concrete panel to shorten the hardening time by compounding a white cement, light-weight aerated concrete panel powder and/or lime powder, pearlite and a specific substance in specific amounts, subse quently. CONSTITUTION: This repairing material comprises 30-50 pts.wt. of a white cement, 27-55 pts....

Draining concrete with a porosity of 10-35 vol.%, contains a cement as hydraulic binder (I) and a polymeric binder (II) in the form of an anionic styrene-(meth)acrylate copolymer, together with an aggregate with particle size of 2-32 mm. Also claimed is a method of mfg. the concrete.

Fluorinated copolymers in salt or quaternised form contg. (by wt.): (a) 50-92 (70-90) % of polyfluorinated monomer(s) of formula (I); (b) 1-25 (2-18) % of one or more monomers of formula (II); (c) 1-25 (2-10) % of a vinyl deriv. of formula (III); and (d) 0-30 (2-15) % of other comonomers different to (I), (II) and (III). Rf-X-O-C(O)-C(R)=CH-R (I) Rf = a perfluorinated radical having opt. branche...

PURPOSE: To improve the safety of an outdoor unit by eliminating the removal of a protective net from the outside in the outdoor unit for an air conditioner in which the back surface of an outdoor heat exchanger is protected by a latticelike protective net having a plurality of longitudinal and lateral sashes. CONSTITUTION: The upper end of the fin 6 of an outdoor heat exchanger 4 is laterally inc...

PURPOSE: To provide an air conditioner in-which suitable air discharge can be always obtained in response to an installing place. CONSTITUTION: A discharge outlet guard 6A having a plurality of rectangular lattices 7 is provided in a discharge port 2 for discharging the air after heat exchanging with circulating refrigerant by a heat exchanger in a horizontal direction out of a housing 1A, while t...

PURPOSE: To provide an air conditioner which has high safety and excellent air diffusing efficiency. CONSTITUTION: A discharge port guard 3A is provided in a discharge outlet 2 for discharging the air after heat exchanging with circulating refrigerant by a heat exchanger out of a body case, and the many air discharge openings 6 of the guard 3A are formed of concentric ribs 4 provided concentricall...

PURPOSE: To form the outdoor unit case of an air conditioner in a rigid structure by a simple forming method, to prevent the contamination of the case surface with rain water, and to efficiently mount the outdoor unit. CONSTITUTION: A plurality of protruding surfaces 18a, 18b are formed in a direction crossing with an air duct at the top plate 2b of the body case 2 of an outdoor unit 1 having atmo...

PURPOSE: To provide a refrigerant tube connecting unit for an air conditioner in which a mounting time can be shortened and many indoor units can be connected to an outdoor unit. CONSTITUTION: First valve 1 and second valve 4 connected to a plurality of refrigerant tubes for circulating to supply refrigerant from a compressor provided in an outdoor unit to a heat exchanger disposed in an indoor un...

PURPOSE: To improve the operability for fixing the one side of an electric equipment box to a partition plate by providing locking means by male and female at one side of the box and near the opening. CONSTITUTION: A first locking piece 2c is formed integrally with the flange 2a of a partition plate 2, and a second locking piece 2i is formed integrally with the flange 2h of the plate 2. A grooveli...