Abstract:
A bus bar wiring board comprising a bus bar pattern for electric wiring formed in a predetermined shape, and a bus bar piece formed separately from the bus bar pattern and electrically connected and secured to the bus bar pattern. A method of producing the bus bar wiring board comprising a bus bar pattern punching step for punching a bus bar pattern for electric wiring that is laid out in a predetermined shape out of an electrically conducting metal plate, a bus bar piece punching step for punching a bus bar piece laid out in a predetermined shape in a remaining space on the electrically conducting metal plate, and a connection step for electrically connecting and securing together the bus bar pattern punched in the bus bar pattern punching step and the bus bar pieve punched in the bus bar piece punching step, whereby reducing the waste in the electrically conducting metal plate out of which the bus bar patterns are punched and decreasing the cost of production or the cost of a product.
Abstract:
A bus bar wiring board comprising a bus bar pattern for electric wiring formed in a predetermined shape, and a bus bar piece formed separately from the bus bar pattern and electrically connected and secured to the bus bar pattern. A method of producing the bus bar wiring board comprising a bus bar pattern punching step for punching a bus bar pattern for electric wiring that is laid out in a predetermined shape out of an electrically conducting metal plate, a bus bar piece punching step for punching a bus bar piece laid out in a predetermined shape in a remaining space on the electrically conducting metal plate, and a connection step for electrically connecting and securing together the bus bar pattern punched in the bus bar pattern punching step and the bus bar pieve punched in the bus bar piece punching step, whereby reducing the waste in the electrically conducting metal plate out of which the bus bar patterns are punched and decreasing the cost of production or the cost of a product.
Abstract:
A method and an apparatus for providing a planar and compliant interface between a semiconductor chip (120) and its supporting substrate to accommodate for the thermal coefficient of expansion mismatch therebetween. The compliant interface is comprised of a plurality of compliant pads (110) defining channels (117) between adjacent pads. The pads are typically compressed between a flexible film chip carrier (100) and the chip. A compliant filler (170) is further disposed within the channels to form a uniform encapsulation layer having a controlled thickness.
Abstract:
A microelectronic connection component includes a dielectric sheet (34) having an area array of elongated, strip-like leads (60). Each lead has a terminal end (66) fastened to the sheet and a tip end (68) detachable from the sheet. Each lead extends horizontally parallel to the sheet, from its terminal end to its tip end. The tip ends are attached to a second element, such as another dielectric sheet or a semiconductor wafer (86). The first and second elements are then moved relative to one another to advance the tip end of each lead vertically away from the dielectric sheet and deform the leads into a bent, vertically extensive configuration. The preferred structures provide semiconductor chip assemblies with a planar area array of contacts on the chip, an array of terminals on the sheet positioned so that each terminal is substantially over the corresponding contact, and an array of metal S-shaped ribbons connected between the terminals and contacts. A compliant dielectric material may be provided between the sheet and chip, substantially surrounding the S-shaped ribbons.
Abstract:
A microelectronic connection component includes a dielectric sheet (34) having an area array of elongated, strip-like leads (60). Each lead has a terminal end (66) fastened to the sheet and a tip end (68) detachable from the sheet. Each lead extends horizontally parallel to the sheet, from its terminal end to its tip end. The tip ends are attached to a second element, such as another dielectric sheet or a semiconductor wafer (86). The first and second elements are then moved relative to one another to advance the tip end of each lead vertically away from the dielectric sheet and deform the leads into a bent, vertically extensive configuration. The preferred structures provide semiconductor chip assemblies with a planar area array of contacts on the chip, an array of terminals on the sheet positioned so that each terminal is substantially over the corresponding contact, and an array of metal S-shaped ribbons connected between the terminals and contacts. A compliant dielectric material may be provided between the sheet and chip, substantially surrounding the S-shaped ribbons.
Abstract:
A method and an apparatus for providing a planar and compliant interface between a semiconductor chip (120) and its supporting substrate to accommodate for the thermal coefficient of expansion mismatch therebetween. The compliant interface is comprised of a plurality of compliant pads (110) defining channels (117) between adjacent pads. The pads are typically compressed between a flexible film chip carrier (100) and the chip. A compliant filler (170) is further disposed within the channels to form a uniform encapsulation layer having a controlled thickness.
Abstract:
A two-layer or multilayer printed circuit board (1) comprises a support plate (2) which consists of a basic material and which carries a first conductor pattern (3) and a second conductor pattern (17) connected to the support plate (2) via an adhesive layer (11) consisting of an electrically insulating adhesive material. At least one opening (12, 13) is provided in the adhesive layer (11), which opening leads to a connecting section (4, 5) of the first conductor pattern (3) and to which a connecting section (18, 19) of the second conductor pattern (17) extends, and by means of which the connecting sections (4, 5, 18, 19) of the two conductor patterns (3, 17) can be electrically interconnected by means of an electrically conducting material connection (28, 29). The adhesive layer (11) here consists of an adhesive material which in a certain temperature range has a higher hardness than the region (2a) of the support plate (2) adjoining the first conductor pattern (3), and the first conductor pattern (3) is pressed into the support plate (2) by the adhesive layer (11) exclusively in its region covered by the adhesive layer (11) as a result of a pressing process for joining together the adhesive layer (11) and the support plate (2), while the region of each connecting section (4, 5) of the first conductor pattern (3) surrounded by an opening (12, 13) is given a curved shape in the direction of a connecting section (18, 19) of the second conductor pattern (17).
Abstract:
An electrical contact comprises a printed circuit layout defining the contact elements on a flexible membrane (6). The membrane is attached to a resilient foam backing (10). The backing urges the contacts into engagement with the terminals of a component to which connection is to be made and also accommodates for differences in the location of the terminals from one component to another. The invention provides reliable electrical connection both in temporary (i.e. programmed test) situations and more permanent applications.
Abstract:
A circuit board in which the patterns of electrically conductive strips and/or pads can be of either standard or non-standard form and which can be designed and assembled by a user comprises a rigid electrically insulating board 1 having a multiplicity of holes 2 through the board arranged in a pattern of rows and columns and, secured to one major surface of the board, a separately formed flexible sheet 4 of electrically insulating material carrying on the surface of the sheet remote from the board a pattern of electrically conductive strips and/or pads 8 which overlies holes in the board. The strips and/or pads 8 are of such an electrically conductive material and of such a thickness that, when a pin C is urged through an electrically conductive strip or pad and the underlying flexible sheet 4 into an underlying hole 2 in the board, electrically conductive material pierced by the pin will effect an electrical contact with the pin passing through the material.