An electronic package comprising a semiconductor chip mounted on a substrate is formed by bonding a structure which covers at least an outer surface of the semiconductor chip and has the same or about the same thermal expansion coefficient as the substrate to the semiconductor chip's side surface of the substrate. This reduces warp and deformation caused by temperature changes during package opera...

Two IC chips in a multiple-chip module are stacked together on a common lead frame or substrate of a ball-grid array package to save space. The top chip is wire-bonded to the lead frame. The bottom chip is flip-chip bonded to the lead frame, thus allowing more leads. The common substrate of the two chips are connected together by a conductive layer of metal plate, solder or conductive epoxy. The c...

Apparatus and methods of packaging and testing die. In one embodiment, a stacked die package includes a packaging substrate having a first surface with a recess disposed therein and a plurality of conductive leads coupled thereto, a first die attached to the packaging substrate within the recess and having a plurality of first bond pads electrically coupled to at least some of the conductive leads...

A method of aligning a lithographic fabrication tool to a substrate to be exposed or patterned by the tool includes the steps of providing a first conductive coil pattern on a surface of the substrate, applying electrical current to the coil pattern, providing a second conductive coil on a surface of the tool, sensing an electro-magnetic field generated by the first coil and the second coil, and a...

The present invention relates to selected 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 trimethyl piperidine derivatives which are substituted in the 4 position by an oxygen or nitrogen atom; a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives. Further aspects of the present invention are a proces...

PROBLEM TO BE SOLVED: To solve a problem that a seedling transplanter is equipped with a soil covering press wheel which is arranged behind a seedling planting position, rolled on the surface of a ridge with a progress of a machine body and compacts the surface of the ridge while covering the circumference of a seedling after seedling planting with soil, the soil covering press wheel is used only ...

PROBLEM TO BE SOLVED: To provide a system in a combine harvester or the like, designed to control regulating output so as to avoid excessive regulation when the threshing depth for grain culms to be fed to a threshing device is regulated to deep threshing side in making a high-level reaping on a levee edge and then subjected to reverse regulation to shallow threshing side. SOLUTION: This control s...

PROBLEM TO BE SOLVED: To reduce breaking damages generated on a wrapped film by placing a loading part, which supports a roll bail freely rotatably to perform a wrapping work, on the machine frame in such a manner that the height of the falling of the roll bail whose wrapping is completed toward the ground surface is decreased, and suppressing the shock caused by falling and discharging the roll b...

PROBLEM TO BE SOLVED: To provide an inexpensive whirlwind type sucking apparatus having a truly simple structure of a small scale to a large scale, and easy in maintenance, and further to provide a smoke-separating machine by utilizing the sucking apparatus. SOLUTION: This smoke-separating machine is obtained by installing the whirlwind type sucking apparatus 2 on a main body 3 of the smoke-separa...

PROBLEM TO BE SOLVED: To provide a primer design system capable of efficiently designing a plurality of primers capable of specifically hybridizing with mutually different DNAs. SOLUTION: This primer design system is capable of receiving base sequences of the DNAs from a database containing the base sequences of the plurality of different DNAs and determining the base sequence of a primer capable ...

PROBLEM TO BE SOLVED: To provide a system that permits efficiently designing primers that can specifically hybridize to DNAs that are different from each other. SOLUTION: This system is such as to receive a DNA base sequence from a database containing different DNA base sequences, and determine a primer base sequence that can specifically hybridize to the received DNA.

PROBLEM TO BE SOLVED: To produce glycine from glycinonitrile in the absence of any acids, alkalis or buffers for adjusting the pH. SOLUTION: The reaction is carried out by acting Acinetobacter sp. or Rhodococcus maris on a glycinonitrile aqueous solution and separating ammonia formed in the reaction solution by means of distilling it off under a reduced pressure or in the presence of an inactive g...

PROBLEM TO BE SOLVED: To simply, stably and highly sensitively assay the oxidative damage index of DNA in a biological sample. SOLUTION: An antioxidizing storage liquid for biological samples, comprising an aqueous solution containing 0.5 to 2 mM/L of EDTA, 2 to 5 wt.% of methanol, and 10 to 40 wt.% of glycerol. The system for assaying the oxidative damage index of DNA in a biological sample, char...

PROBLEM TO BE SOLVED: To retain strongly the shape of a knob closure to be used for a purse, a handbag or the like, using an aluminum material that cannot be soldered or brazed and using a special connection and coupling means to reduce the overall weight. SOLUTION: Arched frames 4 are formed of upper frame members 2 presenting a U section, leg members 3 connected to both ends of the upper frame m...

PROBLEM TO BE SOLVED: To increase the tightness by an internal lid when the screwing force of an external lid acts by making the internal lid sink uniformly in the entire periphery. SOLUTION: The airtight container is furnished with a container body 11, an internal lid 13 openably screwed onto the container body 11 through hinges 19, an external lid 14 containing the internal lid 13 and fitted ont...

PROBLEM TO BE SOLVED: To provide a top board for a desk, capable of being easily dismantled and sorted into every materials when the desk is scrapped. SOLUTION: The top board having a laminated structure provided with a plurality of layers is constituted of a base plate material 4, a surface material 5, and an edge material 6. In the material 4, an engaging step part is formed into an edge part 11...

PROBLEM TO BE SOLVED: To provide a pullout guide for a drawer and the drawer provided with the pullout guide where a positional adjustment can be made to adjust only the inclination of a front plate, while the front plate is being maintained approximately at a certain height. SOLUTION: In the pullout guide for drawers (2, 3 and 4), an outside and drawer side pullout rails (6) are provided respecti...

PROBLEM TO BE SOLVED: To make easily readable the bar code of a price card that is inserted into a price rail or a pop rail without removing the card case for accommodating a pop paper, and at the same time, facilitate operation and control of the card case. SOLUTION: A nipping part 51 of an attachment 50 is engaged with a cleat piece 402 of a pop rail 40 that is mounted to the front end face of a...

PROBLEM TO BE SOLVED: To prevent the luminous flux necessary for measuring the natural information of a subject eye from being rejected by the pupil to perform a stable measurement. SOLUTION: An inspector positions a test eye E to an eye inspection part while watching an anterior part image E' projected on a television monitor 29, and pushes an alignment mark display switch when the rough position...

PROBLEM TO BE SOLVED: To provide a fundus photographic instrument capable of providing a photographic light quantity according to the part to be photographed of the fundus. SOLUTION: This instrument comprises a plurality of fixing targets 31 visually confirmable by a test eye when lighted, and one of them is lighted to guide the visual line. For example, when a fixing target switch 30a is pressed,...