Abstract:
An electronic device includes a base body, which has a top side and also an underside lying opposite the top side. The base body has connection locations at its underside. An electronic component is arranged at the base body at the top side of the base body. The base body has at least one side area having at least one point of inspection having a first region and second region. The second region is embodied as an indentation in the first region. The first and the second region contain different materials.
Abstract:
There are provided the steps of preparing a contact (10, 20), which is formed from a metallic sheet including a base portion (11, 21), an elastic deformation portion (12, 22), and a contact portion (13, 23), and in which a recess (15, 25) is formed on a bottom surface of the base portion and a plurality of through-holes (16, 26, 27) are formed to be arranged above the recess and in parallel to the bottom surface of the base portion to extend through the base portion, and holding solder on the through-holes formed on the contact. A desired, solder-attached contact (10a, 20a) is fabricated by the manufacturing method. Further, the solder is a solder ball (90) and the step of holding solder includes the step of preparing the solder ball and the step of press fitting the solder ball into the through-hole.
Abstract:
An LED assembly includes a substrate and a plurality of LEDs mounted on the substrate. Each LED includes a base and a first and a second electrode leads inserted in the base. The first lead forms a groove in an end thereof, and the second lead forms a tab from an end thereof. The tab of each LED is received in the groove of an adjacent LED to thereby cooperatively define an accommodating space in the groove and above the tab. The accommodating space is used for receiving excess solder when soldering the first and the second leads together.
Abstract:
The invention discloses a lead frame having stitching-assisting structures, an electronic device having such lead frame, and an apparatus having such electronic device. The apparatus according to the invention also includes a flexible substrate and a plurality of conductive threads. Particularly, the conductive threads are sewn through the flexible substrate and the stitching-assisting structures to fix the electronic device on the flexible substrate, and the conductive threads electrically contact with the stitching-assisting structures of the electronic device.
Abstract:
A switch having terminals that provide from side surfaces of a switch housing for mounting on a substrate. Through-holes are provided in the terminals. A main body is installed in a cutaway part of the substrate to form a gap between the housing side surface and the cutaway part. When soldering a solder connection surface of the terminal to the solder mounting surface of the substrate, flux flows out to a substrate end surface through a space formed continuously between each through-hole and the gap, such that there is no penetration of flux into the interior of the switch. As a result, contact operation is made stable. In addition, the solder connection strength is also improved by forming a solder fillet on the interior surface of the through-hole.
Abstract:
A socket, adapted for electrically connecting a printed circuit board to an IC package, comprises a housing and a plurality of contacts arranged in an angular fashion within the passageways. The housing defines a mating face and a mounting face opposed to the mating face and a number of angular passageways extending from the mating face to the mounting face. Each contact includes a bend portion, a first leg and a second leg extending from two opposed ends of the bend portion. The second leg has an arc contacting portion extending out of the mating face for contacting with the IC package. Firstly a solder ball is disposed on a bottom surface of the bend portion and soldered to the printed circuit board to mount the contact to the printed circuit board. Or secondly the contacts (Mounting end) have no solder balls and solder paste is applied to PCB then connector is placed onto PCB and reflow soldered into place without use of solder balls.
Abstract:
The present invention relates to a surface-mount connector for electrically interconnecting a first circuit board and a second circuit board. The surface-mount connector includes a first end part and a second end part. The first end part is bonded onto the first circuit board. The second end part has a sidewall and a receptacle defined within the sidewall for receiving a solder bump therein. The solder bump is partially protruded from the sidewall and bonded onto the second circuit board such that the first circuit board and the second circuit board are electrically connected to each other.
Abstract:
An electrically conductive pin comprising a pin stem and a pin head attached to the pin stem. The pin head is adapted to be mounted onto a surface of a microelectronic substrate to support the pin stem. The pin head defines at least one slot therein, the at least one slot being configured to allow gases to escape therethrough from a region at an underside of the pin head.
Abstract:
A chip package structure including a circuit board, a solder mask, and a chip package is provided. The circuit board has at least one contact on its surface. The solder mask covers the circuit board and has at least one first opening for exposing the contact. The chip package is disposed on the circuit board, and includes a chip and a leadframe, which has at least one lead that is electrically connected to the chip. The lead has an insertion portion that corresponds to the contact and inserts into the first opening. A solder bump is filled into the first opening and fastened to the insertion portion, thereby the connection between the lead and the contact of the chip package structure is secured.
Abstract:
A method for providing a PCB (printed circuit board) with a shield can (1) comprising a metal shell with a free rim (5). The method prescribes that the rim (5) of the shield can (1) is provided with an extra amount of solder (8) before the shield can (1) is placed on the PCB. A shield can (1) is also described.