摘要:
A method and apparatus to mount a capacitor plate to a substrate, under a component. One embodiment of the invention involves a method to assemble a capacitor plate on a substrate. A second embodiment of the invention involves a method to fabricate a capacitor plate. A third embodiment of the invention involves an assembled substrate with a capacitor plate on the second side of the assembled substrate, under an electrical contact area of a component on the first side of the assembled substrate.
摘要:
Thermistor chips are produced by preparing ceramic green sheets, applying an inorganic material such as a glass paste on these green sheets in areas including lines along which they are to be later cut, stacking a plurality of these green sheets one on top of another to obtain a stacked body, obtaining chips by cutting this stacked body along those pre-specified lines and subjecting these chips to a firing process to obtain sintered bodies, and forming outer electrodes on mutually opposite end surfaces of these sintered bodies. A thermistor chip thus produced has a thermistor element having outer electrodes on its mutually opposite end surfaces, and diffused layers of an inorganic material having a higher specific resistance than material of the thermistor element. These diffused layers are formed proximally to externally exposed surfaces of the thermistor element.
摘要:
A method for changing an electrical resistance of a resistor. Initially, the resistor is provided, wherein the resistor has a length L and an electrical resistance R1. A portion of the resistor is exposed to a laser radiation, wherein the portion includes a fraction F of the length L of the resistor. After the resistor has been exposed to the laser radiation, the resistor has an electrical resistance R2, wherein R2 is unequal to R1.
摘要:
A sensor device is assembled by placing a sensor and a potentiometer within a sensor casing. An electrical connection extending from inside to outside the sensing casing has an interior portion inside the sensor casing and an exterior portion outside the sensor casing. The sensor and the potentiometer are coupled to the interior portion and are sealed within the sensor casing. A potentiometer setting apparatus is coupled to the exterior portion and is used to set the potentiometer. Then, the interior portion of the electrical connection is destroyed so that the potentiometer cannot be subsequently reset.
摘要:
A sensor, such as a proximity sensor, having its components sealed within a case, has its sensitivity adjusted with a remotely settable digital potentiometer after assembly of the sensor. The adjustment connection is then destroyed.
摘要:
A surface of a first ceramic component is joined to a surface of a second ceramic component using a silver-based composition. The silver-based composition is a mixture of silver metal and a metal oxide and the metal in the metal oxide is a metal other than silver. The silver-based composition is applied to the surface of the first ceramic component and to the surface of the second ceramic component. The silver-based composition applied to the first ceramic component is contacted to the silver-based composition applied to the second ceramic component. The surfaces of the first and second ceramic components are heated to melt the applied silver-based compositions. The surfaces of the first and second ceramic components are cooled to form a bond between the first and second ceramic components.
摘要:
In a device for measuring the filling level, thermoelements (20) are used which are disposed on a sheet-shaped support (25). The thermoelements (20) consist of two different materials and are disposed in two rows (71, 72) placed side by side. Two adjacent thermoelements (20) of said rows (71, 72) have a common junction point (23) that is heated. Both rows (71, 72) of thermoelements also have two additional junction points that are cold. A first group of thermoelements (20) is disposed with their supports (25) in the interior of the container and operate as measuring detectors. A second group of thermoelements (20) serves as reference sensors since they regulate the heat flow impinging upon the junctions points (23) relative to a defined reference voltage.
摘要:
A ceramic chip-type device having a glass coating film and a fabricating method thereof are provided, in which a coating film having an excellent acid-resistant property is formed on the surface of the ceramic chip device. Thus, the ceramic chip-type device having a glass coating film stands an attack due to a flux at the time of reflow soldering, to thereby maintain an initial insulation resistance. The ceramic chip-type device is made of a ceramic passive device chip including a pair of external electrode terminals on either end of the ceramic chip-type device, and a glass coating film of an excellent acid-resistant property formed on the surface of a ceramic body located between the pair of external electrode terminals.
摘要:
A resistor connector (C) includes a pair of parallel lead frames (1, 1), a resistor (10) with a pair of electrodes (14, 14) and a mold resin (2). Each said lead frame (1) includes a terminal portion (1a) and an electrode connection portion. Said pair of electrodes (14, 14) are electrically connected to respective said electrode connection portions of said pair of lead frames (1, 1) through solder (b). Said mold resin (2) covers said resistor (10) so as to expose said terminal portion (1a, 1a). Said lead frame (1) includes solder flow inhibit means (40, 41) between said electrode connection portion and said terminal (1a) for preventing said solder (b) to flow towards said terminal portion (1a).
摘要:
A method of adjusting a resistance value of a film resistor. The method includes defining, as a single resistive element, a portion of a resistive film formed over a first linear conductive film formed at a position at which a first resistance value is detected when an electric contact is slid thereto, and a second linear conductive film formed at a position at which a second resistance value is detected when the electric contact is slid thereto. The method also includes trimming a portion of the resistive element at opposite sides of the first linear conductive film in a longitudinal direction substantially perpendicular to the width direction to form first and second trimmed portions; and trimming a portion of the resistive element from an end of the second trimmed portion in the width direction toward the second linear conductive film to form a third trimmed portion.