Abstract:
An electronic structure (for example a reliability board or a cycling control module) has a body including a body portion insertable into a connector. A plurality of contact structures are provided on a side of the body portion, each contact structure comprising a first contact and a second contact spaced from the first contact, with the first and second contacts of each contact structure being aligned in the direction of insertion of the body portion into the connector. A corresponding second plurality of contact structures is provided on a side of the body portion opposite the first-mentioned side. These contacts connect with respective corresponding contacts of the connector.
Abstract:
A double-sided flexible circuit board with enhanced rigidity of terminals by using copper foil on an opposite side of the circuit board is provided. The flexible circuit board having wiring patterns P for connecting terminals on each of a front surface A and a back surface B of its periphery, includes: terminal patterns with linear-planar-shaped traces, the traces of which are equally spaced and disposed on the peripheries of each of the front surface and the back surface of the board; and backing patterns with planar-shaped traces, the traces of which are combined with the terminal patterns and bent so that the central portion of the backing pattern is offset from that of the terminal pattern, wherein the traces of the backing patterns are disposed on the corresponding opposite side of the traces of the terminal patterns on the board so as to be positioned overlapping with the traces of the terminal patterns.
Abstract:
The present invention provides a flexible circuit electrode array adapted for neural stimulation, comprising: a polymer base layer; metal traces deposited on said polymer base layer, including electrodes suitable to stimulate neural tissue; a polymer top layer deposited on said polymer base layer and said metal traces at least one tack opening; wherein said polymer base layer, said metal traces and said polymer top layer are thermoformed in a three dimensional shape. The present invention provides further a method of making a flexible circuit electrode array comprising depositing a polymer base layer; depositing metal on said polymer base layer; patterning said metal to form metal traces; depositing a polymer top layer on said polymer base layer and said metal traces; preparing at least one tack opening; and heating said flexible circuit electrode array in a mold to form a three dimensional shape in said flexible circuit electrode array.
Abstract:
In a first embodiment, the invention provides a memory module having an electronic printed circuit board and a plurality of semiconductor chips of the same type that are mounted on at least one outer face of the printed circuit board. The printed circuit board has a connector strip, which runs at a first edge of the at least one outer face in a first direction and has a multiplicity of electrical contacts that are lined up in the first direction. The printed circuit board extends in the first direction between two opposite second edges. At least nine of the semiconductor chips of the same type are respectively mounted next to one another on the outer face of the printed circuit board between the center of the printed circuit board and the respective second edge of the printed circuit board. The semiconductor chips of the same type respectively have a smaller dimension and, in the direction perpendicular to the smaller dimension, a larger dimension that is larger than the smaller dimension. A respective first group of four of the semiconductor chips of the same type, which are oriented so as to have their shorter dimension parallel to the connector strip, is arranged at the respective second edge of the printed circuit board. A second group of five semiconductor chips of the same type is respectively arranged between the first group of semiconductor chips and the center of the printed circuit board. The first group of semiconductor chips and the second group of semiconductor chips are actuated by two separate line buses whose conductor tracks branch toward all the semiconductor chips in the respective group of semiconductor chips.
Abstract:
A flexible circuit sheet is electrically connected to an electric device. The electric device has a first row of electric terminals and a second row of electric terminals. Both the first row of electric terminals and the second row of electric terminals extend along a first direction, the second row of electric terminals extends parallel to the first row of electric terminals. The flexible circuit comprises a base sheet, a first row of lands formed on the base sheet to be electrically connected to the first row of electric terminals, and a second row of lands formed on the base sheet to be electrically connected to the second row of electric terminals. A positional relationship between the first row of lands and the second row of lands is equal to a positional relationship between the first row of electric terminals and the second row of electric terminals. A surface area of each land of the first row of lands is greater than a surface area of each land of the second row of lands.
Abstract:
A method of making an electrical connector includes the steps of: providing a connector body (2) having an insert (5) defining a recessed area (54a) at one side and a number of channels (54b) at an opposite side; assembling a ground bus (4) to the recessed area of the insert, the ground bus including a carrier strip (46) with a number of fingers (460) extending therefrom; assembling a number of signal contacts (3) to the channels of the insert, each signal contact including a board mounting portion (32); and displacing the carrier strip such that each finger extends into space (320) between the mounting portions of two adjacent signal contacts.
Abstract:
Circuit board 10 is of substantially rectangular shape, provided in the upper half of the juxtaposed face 13 with a substantially circular test terminal 20. In the lower half are provided a plurality of substantially rectangular terminals 21–27, arrayed in two rows, i.e., an upper and lower row, the upper row containing an I/O terminal 21 for data input/output, a power supply terminal 22 for supplying power, and a chip select terminal 23 for input of a chip select signal CS. The lower row of juxtaposed face 13 contains a ground terminal 24, a read/write terminal 25 for inputting read/write control signals W/R, a clock terminal 26 for inputting a clock signal CLK, and a ground terminal 27.
Abstract:
A double-sided flexible circuit board with enhanced rigidity of terminals by using copper foil on an opposite side of the circuit board is provided. The flexible circuit board having wiring patterns P for connecting terminals on each of a front surface A and a back surface B of its periphery, includes: terminal patterns with linear-planar-shaped traces, the traces of which are equally spaced and disposed on the peripheries of each of the front surface and the back surface of the board; and backing patterns with planar-shaped traces, the traces of which are combined with the terminal patterns and bent so that the central portion of the backing pattern is offset from that of the terminal pattern, wherein the traces of the backing patterns are disposed on the corresponding opposite side of the traces of the terminal patterns on the board so as to be positioned overlapping with the traces of the terminal patterns.
Abstract:
A removable electronic device having an application module for transferring data to or from a host having a plurality of contact terminals, the device comprising a first row of contact pads, each of the contact pads of the first row including a substantially tapered end, and a second row of contact pads, each of the contact pads of the second row including a substantially tapered end that corresponds to the substantially tapered end of at least one of the contact pads of the first row in an interweaving relationship, wherein the first and second rows of contacts pads are configured to receive the plurality of contact terminals.
Abstract:
Integrated circuits utilizing standard commercial packaging are arranged on a printed circuit board to allow the production of 1-Gigabyte and 2-Gigabyte capacity memory modules. A first row of integrated circuits is oriented in an opposite orientation to a second row of integrated circuits. The integrated circuits in a first half of the first row and in the corresponding half of the second row are connected via a signal trace to a first register. The integrated circuits in a second half of the first row and in the corresponding half of the second row are connected to a second register. Each register processes a non-contiguous subset of the bits in each data word.