Abstract:
A printed circuit board unit includes: a printed circuit board including a through hole including first and second inner surfaces opposite to each other; a terminal pin including an insertion portion inserted into the through hole; solder filled into the through hole, and joining the printed circuit board with the terminal pin, wherein the insertion portion includes a base portion abutting the first inner surface, and a protruding portion including: a projection surface projecting from the base portion to the second inner surface and abutting the second inner surface; and a recess surface located at a rear side of the projection surface and spaced apart from the first inner surface, and a length of the protruding portion in a thickness direction of the printed circuit board is greater than a thickness of the printed circuit board.
Abstract:
A wiring substrate 11A includes a high heat radiation substrate 21 which has a high thermal conductive layer in which at least one of a front surface and a rear surface thereof is a mounting surface 21a for a variety of components; a connection terminal 31 which is extended from the high heat radiation substrate 21 and bent in a direction perpendicular to a surface of the high heat radiation substrate 21; and a heat radiation piece section 35 which is integrally installed to the connection terminal 31.
Abstract:
An electronic circuit contains a circuit board with conducting tracks to which one or more electronic components with conducting contacts are positioned overlying portions of the conducting tracks and each such electronic component is held in place by a clamp that covers and is contact with the top surface of the electronic components so as to hold their conducting contacts in electrical contact with the conducting tracks of the circuit board. The clamp can include a resilient layer held between the top surface of electronic components and a rigid clamping sheet.
Abstract:
The invention relates to contact pins for providing an electrical connection between electronic devices. In one aspect the pin is adapted to be inserted into a hole of a circuit carrier and the pin comprises at least three portions; namely a contact termination portion, an electrical contact portion and a mechanical fastening portion. The mechanical fastening portion preferably allows a fastening of the contact pin without any soldering.
Abstract:
The invention relates to an electronic component having a semiconductor component, particularly a semiconductor chip, and at least one SMD component, a chip carrier with a support platform and with connecting leads. Whereby the semiconductor component, which is connected electrically via chip bonds to bond fingers of the connecting leads is mounted on the support platform and the SMD component connects the support platform to a connecting lead via contact surfaces arranged thereon, a housing, which encloses the semiconductor component, the SMD component, and at least partially the chip carrier. The support platform and the connecting lead in the area of the SMD component are profiled to create barriers in such a way that flowing of a free-flowing material from the contact surfaces connected to the SMD component of the chip carrier both onto the support platform and onto the connecting lead is prevented.
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:
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 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 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:
An integrated circuit (IC) package 100 comprises an IC 102 and leads 104 coupled to the IC. Each lead has a first end 106 configured to be coupled to the integrated circuit and a second end 108 configured to pass through one of a plurality of mounting holes 110 extending through a mounting board 112. The leads comprise at least one positioning lead 114 comprising a stop 118 being a continuous part of the positioning lead and having a lateral dimension 120 greater than a diameter 122 of a first hole 124 of the plurality of mounting holes. The leads further comprise at least one non-positioning lead 116 having a continuous uniformly shaped body 130 with a lateral dimension 132 less than a diameter 134 of a second hole 136 of the plurality of mounting holes. The stop limits an extension of the non-positioning lead through the second hole.