Abstract: An electronic apparatus is disclosed that includes a board and an electronic component having a body. The board has multiple through-holes and multiple lands covering multiple through-holes. The electronic component has multiple terminals. The terminals are respectively coupled with the lands while a part of each terminal being inserted into a through-hole. A shape of the through-hole is generally circular and different from a part of the land on a back surface of the board. The part of the land on the back surface has a width and the width is different in directions.

Abstract: A ball grid array includes: a semiconductor chip having multiple pads; and an interposer for mounting the semiconductor chip on a first surface. The interposer includes multiple wirings on the first surface and multiple ball terminals on a second surface opposite to the first surface. Each wiring is connected to a corresponding pad of the semiconductor chip, and is electrically connected to a corresponding ball terminal. At least one of ball terminals providing a power supply terminal or a ground terminal provides a common ball terminal for connecting to at least two of the pads of the semiconductor chip through two wirings.

Abstract: An electronic device includes a printed circuit board and an electronic element having a terminal. The terminal has a surface section and an insertion section. The printed circuit board includes a through hole extending from a first surface to a second surface of the printed circuit board, a surface land disposed on the first surface, and an insertion land integrally disposed on a sidewall of the through hole and on a periphery around the through hole. The surface section is coupled with the surface land through a solder. The insertion section is disposed in the through hole and is coupled with the insertion land through the solder. The surface section has a recess part and a portion of recess part is disposed so as to be axially aligned with a portion of the through hole.

Abstract: In a knock sensor signal processing apparatus, a first apparatus which receives an engine knock sensor signal performs A/D conversions of the signal with a predetermined period and transmits successive pluralities of A/D values in parallel, by serial data communication, to a second apparatus in response to respective commands received from the second apparatus. The number of communication lines provided for transmitting the A/D values is made greater than those for transmitting commands from the second apparatus to the first apparatus, so that a high A/D conversion frequency together with low data rate of transmitting the A/D values can be achieved, thereby reducing communication-generated noise.

Abstract: An electronic apparatus is disclosed that includes a board and an electronic component having a body. The board has multiple through-holes and multiple lands covering multiple through-holes. The electronic component has multiple terminals. The terminals are respectively coupled with the lands while a part of each terminal being inserted into a through-hole. A shape of the through-hole is generally circular and different from a part of the land on a back surface of the board. The part of the land on the back surface has a width and the width is different in directions.

Abstract: A retaining member includes at least a leg portion having a latch portion, a coupling portion and a spring portion. When the spring portion is displaced, the coupling portion is twisted. Then, the latch portion and the coupling portion are inserted into the opening so that an electric component is retained on a main face of the substrate. In this state, a part of the latch portion is disposed at the periphery of the opening on a rear face of the substrate, a part of the coupling portion is disposed in the opening, and the spring portion is disposed on the main face of the substrate. Therefore, the retaining strength of the electric component to the substrate can be improved, and damage of a side wall of the opening can be decreased.

Abstract: An electronic device includes a printed circuit board having lands and an electronic element having a body and terminals. First and second lands provide a zigzag pattern. Each first land is coupled with the first terminal, and each second land is coupled with the second terminal. The second terminal includes a first parallel member, a first connection member, a second parallel member and a first mounting member. The first parallel member is completely embedded in the body, or another part of the first parallel member exposed from the body is shorter than the second parallel member. A second height between the second parallel member and the printed circuit board is smaller than a first height between the first parallel member and the printed circuit board.

Abstract: In a connector, a connector terminal has a first portion partially supported by a connector housing to be parallel to a wiring board, a second portion exposed outside the housing to be parallel to the board and located closer to the board than the first portion, a joint portion having a first end joined to the first portion and a second end exposed outside the housing and joined to the second portion, and a contact portion soldered to a corresponding land of the board. The first portion of a first terminal is located farther from the board than the first portion of a second terminal. The joint portions of the first and second terminals are located at different distances from the housing. The joint portion of the first terminal is supported by the housing between the first portions of the first and second terminals.

Abstract: A mounting structure includes: a surface mounting connector including a housing and a plurality of terminals; a substrate including a plurality of lands, each of which is electrically connected to the terminal with a bonding member; a plurality of support portions for supporting the connector on the substrate; and a plurality of fixing members for positioning the connector on the substrate. Each fixing member is connected to the housing, and contacts a part of the substrate, which is different from a surface portion of the substrate contacting the support portion. Each terminal is positioned on the substrate with a predetermined distance between the terminal and the substrate by the support portions and the fixing members.

Abstract: A reinforcing tab for reinforcing connection between a circuit board and a surface-mounted connector includes a fixing wall to be fixed to a housing of the connector and a connecting wall defining a connecting surface on its end to be connected to the circuit board. The connecting wall extends from the fixing wall and includes a bend at least at a part. Further, the connecting wall has a recess on the connecting surface at a position corresponding to the bend.

Abstract: An electronic device includes a printed circuit board, a connector mounted on the printed circuit board, and a case housing the printed circuit board. The connector includes a housing and a plurality of terminals arranged in the housing. The case has an opening portion on one side thereof and the housing covers the opening portion. The case includes a wall having a case-side fixing part and a case-side engaging part at a portion adjacent to the opening portion. The housing has a housing-side fixing part and a housing-side engaging part. The case-side fixing part engages with the housing-side fixing part for fixing the housing to the case. The case-side engaging part engages with the housing-side engaging part for restricting the portion of the case adjacent to the opening portion from separating from the housing.

Abstract: An electronic device includes a printed circuit board and an electronic element having a terminal. The terminal has a surface section and an insertion section. The printed circuit board includes a through hole extending from a first surface to a second surface of the printed circuit board, a surface land disposed on the first surface, and an insertion land integrally disposed on a sidewall of the through hole and on a periphery around the through hole. The surface section is coupled with the surface land through a solder. The insertion section is disposed in the through hole and is coupled with the insertion land through the solder. The surface section has a recess part and a portion of recess part is disposed so as to be axially aligned with a portion of the through hole.

Abstract: An electronic device includes a printed circuit board, a connector mounted on the printed circuit board, a casing, and a sealing member. The casing houses the printed circuit board and a part of the connector in such a manner that the other part of the connector protrudes to an outside of the casing. The casing has a casing-side recess portion and a casing-side protruding portion that are connected each other to have a loop shape. The housing has a connector-side protruding portion and a connector-side recess portion that are connected to each other to have a loop shape. The connector-side protruding portion is fitted into the casing-side recess portion through the sealing member and the casing-side protruding portion is fitted into the connector-side recess portion through the sealing member.

Abstract: An electronic component mounting structure includes a board and an electronic component mounted on a surface of the board. The board includes lands. The electronic component includes a body and terminals extending from the body. Each terminal is electrically connected to a corresponding one of the lands of the board. The terminal has a first terminal portion extending along the surface of the board and a second terminal portion extending toward the surface of the board. Each land includes a land portion electrically soldered to the first terminal portion and a blind hole for receiving the second terminal portion. The first terminal portion is soldered to the land portion in a reflow process under the condition that the second terminal portion is inserted in the blind hole.

Abstract: A connector mounting structure includes a circuit board, a surface mount connector mounted to the circuit board, and an electronic component. The connector includes a connector body and a plurality of conductive terminals. The connector body has a base portion placed on a front surface of the circuit board and a tube portion. The terminals are disposed in the base portion of the connector body. The tube portion has a first opening portion for partially receiving the circuit board and a second opening portion for communicating with an external device. The electronic component is mounted to a back surface of the circuit board. A space for the electronic component is provided approximately beneath the base portion, between the back surface of the circuit board and the first opening portion of the tube portion.

Abstract: An electronic component mounting structure includes a board and an electronic component mounted on a surface of the board. The board includes lands. The electronic component includes a body and terminals extending from the body. Each terminal is electrically connected to a corresponding one of the lands of the board. The terminal has a first terminal portion extending along the surface of the board and a second terminal portion extending toward the surface of the board. Each land includes a land portion electrically soldered to the first terminal portion and a blind hole for receiving the second terminal portion. The first terminal portion is soldered to the land portion in a reflow process under the condition that the second terminal portion is inserted in the blind hole.

Abstract: A connector mounting structure includes a circuit board and a male connector. The male connector is surface-mounted to the circuit board and has a housing and terminals. The housing includes a body member and a fixing member fixed to the body member. The fixing member has a tube portion and a protection portion. The tube portion receives a housing of an external female connector. Each terminal has first and second ends. The first end is exposed to a surface of the body member and soldered to the circuit board. The second end is also exposed to the surface of the body member to be electrically connectable to the female connector. The protection portion is placed between the first and second ends in a thickness direction of the circuit board to cover facing area between adjacent first ends.

Abstract: An electronic device includes a printed circuit board having lands and an electronic element having a body and terminals. First and second lands provide a zigzag pattern. Each first land is coupled with the first terminal, and each second land is coupled with the second terminal. The second terminal includes a first parallel member, a first connection member, a second parallel member and a first mounting member. The first parallel member is completely embedded in the body, or another part of the first parallel member exposed from the body is shorter than the second parallel member. A second height between the second parallel member and the printed circuit board is smaller than a first height between the first parallel member and the printed circuit board.

Abstract: An electronic device includes a printed circuit board with multiple lands and through holes and an electronic element with multiple terminals on the board. Each terminal is coupled with the land through a solder. The lands include a surface land on the board and an insertion land on a sidewall of the through hole. The terminals include a branch terminal having an insertion member and a surface member. The insertion member is coupled with the insertion land through the solder. The surface member is coupled with the surface land through the solder. The surface member is parallel to the printed circuit board. The insertion member is perpendicular to the printed circuit board. The insertion member extends from a part of the surface member, which faces the surface land and disposed above the through hole.

Abstract: A detector for detecting a different kind of object among objects being carried with high resolution using a plane spectrometer.