Abstract:
An aluminum electrolytic capacitor includes a main body, two electric leads, and a metal set plate. The main body has a base and a plastic insulating film. The electric leads are located at one end of the base. The metal set plate is located at opposite end, with a connecting portion and a soldering portion. The connecting portion is located at the surface of the other end of the base opposite of the two electric leads. The soldering portion extends outside of the main body. The plastic insulating film wraps around the main body and the outer edge of the connecting portion. Thereby, the metal set plate is secured firmly with the main body. The soldering portion of the metal set plate is soldered onto the printed circuit board, allowing the aluminum electrolytic capacitor to be firmly attached to the printed circuit board.
Abstract:
An ovenized oscillator package including at least a heater and a crystal package mounted on opposite sides of a circuit board. Vias extend through the body of the circuit board to transfer heat from the heater to the crystal package. Layers of thermally conductive material extend through the body of the circuit board and are in thermally coupled relationship with the vias for spreading heat throughout the circuit board and other elements mounted thereon.
Abstract:
Methods and apparatus for accessing a high speed signal routed on a conductive trace on an internal layer of a printed circuit board (PCB) using high density interconnect (HDI technology) are provided. The conductive trace may be coupled to a microvia (μVia) having a conductive dome disposed above the outer layer pad of the μVia. In-circuit test (ICT) fixtures or high speed test probes may interface with the conductive dome to test the high speed signal with decreased reflection loss and other parasitic effects when compared to conventional test points utilizing plated through-hole (PTH) technology.
Abstract:
There are provided an electronic component permitting easy surface mounting onto a circuit board and, a mounted structure and an inverter device therewith.A surface mount type electronic component has a dielectric element body, electrodes, lead conductors, and lead wires. The dielectric element body has principal faces and side faces. One electrode is formed on one principal face, the other electrode is formed on the other principal face, and the electrodes face each other. A first portion of one lead conductor is laid on one side face. A first portion of the other lead conductor is laid on another side face. First portions of the lead wires are connected to the corresponding first portions of the lead conductors.
Abstract:
A lead plate-attached coin-type battery is constituted from a combination of a coin-type battery and a positive lead plate. In the coin-type battery, a negative cap seals the aperture of a positive outer can. In a lateral view, the positive lead plate is crank-shaped, and one end thereof is attached to the outer surface of the positive outer can of the coin-type battery. A lead plate is not attached to the negative cap. One or more projections that project in the Z axis direction are provided on the negative cap. In the lead plate-attached coin-type battery, the positive lead plate and negative cap have been attached to respective conductive lands on a circuit board by a solder reflow method.
Abstract:
An optical mouse has a housing, a printed circuit board, a light source unit, a photodetector unit, a light-guiding unit and a lens unit. The light source unit has different colors of image light sources and is disposed on the printed circuit board. The light-guiding unit is arranged in the housing and adjacent to the light source unit for guiding a non-complementary color light relative to a reflection surface from one of the image light sources to the reflection surface. The lens unit is arranged in the housing and positioned below the photodetector unit for converging a reflected light reflected by the reflection surface into the photodetector unit. Furthermore, the optical mouse can be operated on various colors of reflection surfaces, and still retains better sensitivity.
Abstract:
A unique side mounted LED and side sensing photo-transistor with free-end contacts, useful for thin profile side and back lighting and low-profile touch screen photo-circuits, and a method of manufacturing the side mounted side emitting or sensing photo circuit components.
Abstract:
A secondary battery or capacitor fitted with terminals and occupies less area on a packaging substrate. Either one of the positive and negative terminals is mounted within the outer surface of the secondary battery or capacitor. This reduces the area occupied by the secondary battery or capacitor fitted with terminals on the substrate. At least one step is formed on the terminal positioned opposite to the substrate. This prevents electrical shorting between the positive electrode can and the negative terminal.
Abstract:
This invention eliminates the requirement of a battery compartment of electronic devices, so that the size of the electronic devices can be greatly reduced. This invention is very usefully especially for medical devices and portable devices or the like.
Abstract:
A very small computer memory card is densely packed with a large number of flash EEPROM integrated circuit chips. A computer memory system provides for the ability to removably connect one or more of such cards with a common controller circuit that interfaces between the memory cards and a standard computer system bus. Alternately, each card can be provided with the necessary controller circuitry and thus is connectable directly to the computer system bus. An electronic system is described for a memory system and its controller within a single memory card. In a preferred physical arrangement, the cards utilize a main circuitry board with a plurality of sub-boards attached thereto on both sides, each sub-board carrying several integrated circuit chips.