Abstract:
A circuit board of a solid-state image sensor (CCD) in an electronic endoscope apparatus for inspecting internal cavities of the body by inserting an electronic endoscope having the CCD at one end thereof into an object of inspection and displaying the image of the object on a monitor. The circuit board has a package to which the CCD is attached. A groove portion is provided at one end of the package and connecting terminals are disposed on the upper surface and the under surface of the groove portion. A substrate with a wiring pattern formed both sides thereon is fitted into the groove portion and the circuits are connected. In an endoscope in which the image picked up by the CCD is reversed side by side, the substrate is connected upside down to the package. Thus, this circuit board facilitates correspondence to various structures of endoscopes. Reduction of the diameter of the endoscope is also possible.
Abstract:
A printed circuit board capable of resilient deformation having two major surfaces and a contact edge. Electrically conductive traces are provided on each major surface of the board which lead to electrically conductive contact pads at the contact edge of the board. A gap is provided between the two major surfaces of the board along the contact edge. The gap permits resilient deformation of the board so that a force is created upon deformation which will bias the major surfaces toward their undeformed position. An elastomeric biasing member may be provided in the gap.
Abstract:
An electrical circuit device having a substrate including circuit components on at least one side thereof and a plurality of through openings in the substrate. Terminal leads are positioned in the openings each with a deformation intermediate the ends of the leads and spaced internally of the opening from a soldered area at the juncture of the exposed portion of the leads and the termination edge of the substrate. Two methods of assembly of leads to the substrate are also disclosed.
Abstract:
A lead frame assembly of indefinite length having a pair of spaced parallel carrier strips, collapsible rungs extending between the strips at regular intervals along the length of the assembly and a number of leads extending inwardly from the opposed edges of the strip between the rungs are collapsed inwardly to seat the ends of the leads against the sides of circuit modules previously positioned between the ends of the leads. The lead ends are seated in recesses in the circuit modules and are subsequently soldered to metalized surfaces on the modules. Following the bending of the leads, the carrier strips and rungs are cut away.
Abstract:
An electrical circuit device having a ceramic substrate including a thick or thin film circuit on at least one surface thereof and an elongated groove formed in a surface substantially normal to the first mentioned surface. In one embodiment the elongated groove is divided into juxtaposed alternately distended and constricted portions, the constricted portions being adapted to receive an end portion of relatively flat lead wires. Prior to insertion of the lead wires, the respective constricted groove portions and the surface portion extending laterally therefrom are first metallized to define conducting areas leading to the respective lead wires. The lead wires are inserted and soldered in place.