Abstract:
A printed circuit board with a quartz crystal oscillator includes a mounting area for receiving the quartz crystal oscillator, two first vias, and two second vias. A copper foil is arranged on the mounting area. Pins of the quartz crystal oscillator are inserted into the first vias. The second vias are connected to a ground layer of the PCB and communicate with the copper foil, for transmitting noise of the quartz crystal oscillator to the ground layer of the PCB.
Abstract:
The wide usable interconnecting component of the present invention is capable of reducing number of components or electric elements and reducing number of interconnecting sections without limiting circuit design. The interconnecting component electrically interconnects electric components, and the interconnecting component acts as an electric element. Namely, the interconnecting component acts as a passive element or an active element.
Abstract:
A supporting device includes a housing for receiving one or more batteries. A spring blade has a middle flap and an end limb secured to the board, and includes a bent segment for engaging with the batteries. Another spring blade is engaged through the board for attaching to the circuit board, and includes a panel for detachably securing the battery to the housing. The board has two legs for spacing the board from the circuit board.
Abstract:
A combination axial and surface mounted cylindrically-shaped package containing at least one electronic component and being surface mountable to a printed circuit board with electrical lands by the use of conventional axial component through hole mounting machinery that includes a hollow, electrically-insulated, and generally circular-cylindrically-shaped housing, at least one electronic component that is contained in the hollow, electrically-insulated, and generally circular-cylindrically-shaped housing, a pair of electrically-conductive axial leads that are in electrical communication with the at least one electronic component, and at least one circumferentially-disposed, laterally-oriented, and electrically-conductive ring also in electrical communication with the at least one electronic component.
Abstract:
The prior art terminal for making a solder bond between a lead and a bond site is modified so as to enhance the reliability of the solder bond. In one embodiment, this modification entails solder relief terminals: solder relief holes through the terminal, notches, grooves or ridges on the surface of the terminal, or bending of the terminal. In a second embodiment, this modification entails predeposit of a predetermined and controlled amount of solid solder and flux on the terminal.
Abstract:
A vehicle lamp is mounted on vehicles such as automobiles. The lamp has an inner chamber constructed by a lamp housing and a lens, respectively having long shapes. In the chamber, there is a long light source fixing face member on which plural light sources are fixed. All light sources or electric bulbs are neatly fitted to convex or concave guide portions. Circuit patterns are printed on an inner face of the housing. Terminals of the light sources come into contact with the circuit patterns. The housing is made of particular synthetic resin having a good heat conductivity, so that no heat is accumulated in the chamber.
Abstract:
A passive electric component suitable for SMD-technique and having a cylindrical supporting member or a supporting member in the form of a rectangular parallelepiped and having electric connection elements at its ends which surround the supporting member in the form of a tube and do not cover the end faces of the supporting member.
Abstract:
Method and apparatus are disclosed for printed circuit board assembly wherein optimal placement of components are effected. Components, such as microminiature components, are placed, at least on the underside of the circuit board, whereby specially contoured solder pads effect a self-alignment of such components prior to their being affixed in place by a suitable adhesive material.
Abstract:
An electrical device designed for leadless surface mounting on a PC board has molding compound which surrounds the electrical component and is so shaped as to have an outer surface which defines a flat, so that when the device is placed on the board it will remain in proper location and not roll away. An appropriately shaped mold is provided to accommodate the shape the molding compound simultaneously for a plurality of devices.
Abstract:
Two substrates carrying printed circuit patterns are coupled together back-to-back with an adhesive tape interposed therebetween. A plurality of holes are formed through the substrates, and apertures of small diameter are punched in the portions of the adhesive tape backing these holes. Electric components to be held to the substrate are then inserted through the holes punched in the adhesive tape and soldered firmly into portion by an automatic soldering apparatus.