Abstract:
A packaging substrate is formed of an array of packaging units. Each packaging unit has a chip pad carrying a chip, a plurality of pins arranged around the chip pad and spaced from one another and the chip pad by an open space, an insulative member formed of a plurality of insulative member layers and filled up the open space, and a set of electrical elements, which includes a plurality of plated through holes cut through the insulative member layers, first lead wires embedded in the insulative member to electrically connect the plated through holes to one another, and second lead wires that connect the plated through holes to a respective adjacent pin.
Abstract:
This invention provides an iron pipe furniture assembly structure principally using the pipe connector as the connection construction component of the supporting shaft and the pipe element, and utilizing the elongated round-shaped fastening shaft of the pipe connector at the insertion center for connection with the pipe element and coupled with the diamond round-shaped insertion hole of the insertion cork of the pipe element end portion and the long diameter direction slot of the insertion hole to give sufficient room for movement, and further supplemented with the indent groove on the lateral side near the end portion of the pipe element for the tool to operate and spiral turn the pipe element, thereby the assembly operation of the pipe element and the pipe connector can be easily and speedily accomplished with certain simple insertions and spiral turning operations.
Abstract:
A packaging substrate is formed of an array of packaging units. Each packaging unit includes a chip pad on which a chip is carried, a plurality of pins arranged around the chip pad and spaced from one another and the chip pad by an open space, an insulative member filling up the open space and forming with the pins and the chip pad a platform, and lead wires located at the insulative member for connecting pins directly or through a passive component.
Abstract:
A method of making an IC substrate includes the steps of: a) preparing a substrate having a front side and a back side and half-etching the substrate to form a filling space in the front side of the substrate subject to a predetermined depth and area, b) putting the substrate thus obtained from step a) in a cavity of a mold and employing a polymer filling and mold pressing procedure to fill up the filling space with an insulative polymer, and c) removing the substrate from the mold and half-etching the back side of the substrate body so as to obtain an IC substrate.
Abstract:
A packaging substrate includes an array of packaging units. Each packaging unit has a chip pad carrying a chip, a plurality of pins arranged around the chip pad and spaced from one another and the chip pad by an open space, an insulative member filling up the open space, passive components each connected between two pins, a bonding adhesive applied to the pins to which the passive components is connected to affix the connection between the passive components and the respective pins, and a plurality of overflow-preventive grooves respectively provided around the bonding adhesive at each of the pins to which the passive components are connected to prevent overflow of the bonding adhesive.
Abstract:
A multi-purpose tubular frame structure that is assembled by an interlocking conjoinment and, furthermore, provides for height adjustment. A plurality of retaining holes are formed in the corner posts of the invention herein and each retaining hole is a semi-trapezoidal opening with the sides at the lower half gradually angled inward such that cleat blocks disposed on a horizontal tube can be positionally engaged therein.
Abstract:
A lead frame has contacting pins of different thickness arranged around a die pad and spaced from one another and the die pad to fit the demands of the designed integrated circuit, for enabling the fabricated integrated circuit to have the desired optimum electric characteristics.
Abstract:
A packaging substrate is formed of an array of packaging units. Each packaging unit has a chip pad carrying a chip, a plurality of pins arranged around the chip pad and spaced from one another and the chip pad by an open space, an insulative member formed of a plurality of insulative member layers and filled up the open space, and a set of electrical elements, which includes a plurality of plated through holes cut through the insulative member layers, first lead wires embedded in the insulative member to electrically connect the plated through holes to one another, and second lead wires that connect the plated through holes to a respective adjacent pin.
Abstract:
A packaging substrate is formed of an array of packaging units. Each packaging unit includes a chip pad on which a chip is carried, a plurality of pins arranged around the chip pad and spaced from one another and the chip pad by an open space, an insulative member filling up the open space and forming with the pins and the chip pad a platform, and lead wires located at the insulative member for connecting pins directly or through a passive component.
Abstract:
A modular rack comprises a plurality of upright support rods and shelves which are supported on various levels of the upright support rods in conjunction with a plurality of locating pieces, sleeves, and retaining pieces. The sleeves are fastened with the upright support rods in conjunction with the locating pieces and are provided with a retaining seat. The retaining pieces are fastened with four comers of the shelves. The shelves are releasably retained at various levels of the upright support rods such that the retaining pieces of the shelves are releasably retained by the retaining seats of the sleeves.