Abstract:
A circuit board or each circuit board of a multi-layer circuit board includes an electrically conductive sheet coated with an insulating top layer covering one surface of the conductive sheet, an insulating bottom layer covering another surface of the conductive sheet and an insulating edge layer covering an edge of the conductive sheet. An insulating interlayer can be sandwiched between a pair of adjacent circuit boards of a multi-layer circuit board assembly. A landless through-hole or via can extend through one or more of the circuit boards for connecting electrical conductors on opposing surfaces thereof.
Abstract:
A miniature PWB (101) with features that incorporate the required circuitry changes and component footprints (105), which has been enhanced with micro-castellations (111) such as those found on ceramic surface mount packages. The miniature PWB (101) is mounted on the circuit board (125) using techniques well known in the art. This combination of technologies provides an adaptable, durable interconnect methodology, which allows for circuit (109) and part changes (113, 115, 117) without changing the layout of the base printed wiring board (125).
Abstract:
A connection structure of printed wiring board for connecting one printed wiring board (12) with another printed wiring board (14) disposed oppositely to one printed wiring board (12) at a specified interval, characterized in that one printed wiring board is connected with another printed wiring board physically and electrically through a connector (20) having a printed wiring board structure incorporating a signal layer arranged with a wiring pattern.
Abstract:
The electronic device of the invention is such constructed that the antenna part (3) and the RF circuit part (4) can show their respective functions even after the antenna part (3) and the RF circuit part (4) have been separated. Besides a scribe line 6 is formed on a - preferably ceramic - substrate for separating the antenna part (3) from the RF circuit part (4). Both parts may be separated after a change in any environmental condition, such as a change in the circuit configuration of the board on which the device (10) is to be mounted.
Abstract:
System for connecting in orthogonal position an auxiliary board to a double face or multilayer printed circuit base board, said base board (1) having internally metallized orifices (2) which are transverse to a dielectric substrate (3) and which interconnect electrically tracks (4) defined in one or two faces of said plate (1). Conductor members (5) of the auxiliary board (6) are inserted into the orifices (2) and are connected electrically to tracks (7) of said board; the conductor layer/surface lining internally the metallized orifices (2) is divided in various portions which are electrically separated. In said auxiliary board (6), a dielectric substrate (10) has appendices (8), each of which comprising various separated conductor parts (9a, 9b) which are connected to corresponding tracks (7a, 7b) of the board (6). The conductor parts (9a, 9b) of each appendice (8) correspond in number and position to those of the separated parts (2a, 2b) of each metallized orifice (2).
Abstract:
A package for connecting electrical components to a substrate is disclosed. The package includes conductive castellations around the perimeter of the package. The castellations are configured to electrically connect to the substrate, and to electrically connect to conductive features at an interior portion of the package. In turn, electrical components may be electrically connected to the castellations. The package may be used to form a module by electrically connecting the electrical components to the package and integrating the components by connecting various components or portions thereof to other components or portions thereof.
Abstract:
Resin-sealed surface mounting type electronic parts which are formed in such a way that an electronic part element (5) is mounted on a resin-made wiring board (1) and a sealed area having a cavity housing the element (5) is formed by bonding a lid member to the board (1) so as to cover the element (5), and then side-face electrodes (21) are formed in through conductive grooves provided inside the bonding surface of the cap member on the board (1). Plated layers in the through conductive grooves have conductors (10 and 11) on the upper and lower surfaces of the board (1) each constituted of two or more kinds of metallic layers containing a plated gold layer (13) formed as the uppermost layer and a plated copper layer (12) and connected to the peripheral edges of the conductive grooves. On the upper conductor (10), however, only the plated copper layer (12) is formed and the other plated layers including the gold layer (13) are not formed on the conductor (10) so as to improve the reliability of the adhesion between the board (1) and cap member. Therefore, the reliability of the adhesion between the board (1) and the cap member for forming the sealed area having a cavity housing the element (5) is improved and the reliability of the airtight sealing of the element (5) is improved.
Abstract:
A plated plastic castellated interconnect (20) comprises a substrate (22) made from a molded polymeric material and having top and bottom surfaces (30, 34) with a plurality of separate mutually spaced apart castellations (32) integrally molded to the substrate (22) and projecting from the bottom surface (34) of the substrate (22). A plurality of separate spaced apart recessed regions (40) may be molded in an edge of the substrate (22) and aligned with the castellations (32). A plurality of metal conductors (46) are plated to the substrate (22) as separate conductive circuit traces (48), so that each circuit trace (48) extends continuously from the top surface (30) along the surface of a corresponding recess (40) and to a common plane on a respective castellation (32) at the bottom (34) of the substrate (22). The plated metal castellations are arranged for soldering or gluing to contacts (99) on a printed circuit board (102) for electrical connection to an electrical component such as an IC chip (26) connected to the circuit traces (48) on the substrate (22). The plated plastic castellations on one component provide high lead pitch densities, complex configurations, and compliancy of electrical connections to a second electrical component, as well as other advantages.