摘要:
Example embodiments are directed to circuit boards, connectors, cases, circuit board assemblies, case assemblies, devices and methods of manufacturing the same, which are common to at least two different form factors.
摘要:
A small, flat rectangularly shaped electronic circuit card, such as one containing non-volatile memory, has a row of contacts mounted on bottom surfaces of a row of recesses extending along a short edge and an adjacent angled corner. At least one of the recesses opens to the angled corner and the remaining recesses open to the short edge. Two surface contacts are included in at least one of the recesses, while the remaining recesses each contain a single contact.
摘要:
A Universal-Serial-Bus (USB) device includes a PCBA mounted inside a molded plastic housing structure such that metal contacts are exposed on a plug portion of the housing structure, and includes a metal plug shell attached to the housing structure such that an upper wall of the metal plug shell is spaced from the metal contacts by a predetermined gap distance. A USB controller IC is mounted onto a relatively narrow portion of the PCBA under the metal contacts to reduce overall length of the USB device. The metal plug shell is molded or snap-coupled onto tabs formed on the plug portion of the housing structure. An optional locking collar secures a rear edge of the metal plug shell to the housing structure. An optional rear cover is attached over a rear opening of the housing structure and secures a rear edge of the PCBA.
摘要:
A flexible circuit board is provided, comprising a flexible substrate having an upper surface and a lower surface and a plurality of electrically conductive pads overlaid on an upper surface of the flexible substrate. Front ends of the electrically conductive pads do not reach a front edge of the flexible substrate and are separated from the front edge of the flexible substrate by a distance.
摘要:
A display device includes a display panel which includes an effective display section, a flexible board which supplies a driving signal to the effective display section, a connection part at which the display panel and the flexible board are connected, and a plurality of connection wiring lines which connect the connection part and the effective display section. The connection part includes a first connection section including at least two connection pad groups, which are composed of connection pads that are connected to the effective display section via the connection wiring lines, and a dummy pad group which is disposed between the connection pad groups, and is composed of dummy pads, and a second connection section including connection terminal groups, which are composed of connection terminals corresponding to the connection pads, and a dummy terminal group which is composed of dummy terminals corresponding to the dummy pads.
摘要:
A circuit board (PCB) and connector design, which provides for better electrical connection between the PCB and its host, especially for when used in high-speed optical systems. The PCB has an electrical flex embedded within it. The flex is connected to electrical component located on the PCB by means of a via at one end and protrudes from the PCB at the other end. The connector has a flex connection means arranged to receive the flex protruding from the PCB.
摘要:
A bifurcated conductive pad positioned on an electrical mating component, such as a circuit card, a contact portion of a cable assembly, or the like, having a main body and a mating edge. The bifurcated conductive pad receives a mating element having a built-up charge. The conductive pad comprises an initial contact portion and a final contact portion. The initial contact portion is configured to receive the mating element before the final contact portion receives the mating element, and wherein at least one of the initial and final contact portions is grounded so that the final contact portion receives a reduced amount of the built-up charge.
摘要:
A signal channel extends from motherboard to a daughter card across an edge connection. The daughter card includes a conductive plane that is held at a constant electrical potential. In order to compensate for a number of sources of inductance within the signal line at the edge connection, a circuit trace forming a portion of the signal channel includes an enlarged portion, spaced inward along the daughter card from the contact pads forming the edge connection, that adds capacitive coupling of the signal channel with the conductive plane.
摘要:
A signal connector assembly with a plug contact within a plug having a high resistive portion. When the plug of the assembly first makes contact with the electrical receptacles within a mating receptacle, the high resistive portion prevents a current surge. As the plug is further inserted into the receptacle, the energy passing from the plug to the receptacle is gradually increased. Eventually, the receptacle contacts within the receptacle pass the high resistive portion and make contact with the conductive portion of the plug contact, thereby permitting transmission of valid signals without the generation of spurious errors.
摘要:
A printed circuit board (1) provided with an attachement (3) which surrounds surface contacts (11) of the printed circuit board (1) that are to be contacted by a printed circuit board connector that covers the portion of the printed circuit board (1) and edges of the printed circuit board (1) around the surface contacts (11) and includes recesses (31) corresponding to the surface contacts (11) assuring proper connection with contacts (21) of a printed circuit board connector.