Abstract:
A contact tail for an electronic component compatible with surface mount manufacturing techniques. The contact tail is stamped, providing a relatively low manufacturing cost and high precision. High precision in the contact tails in turn provides more reliable solder joints across an array of contact tails in an electronic component. Further, the contact tail may be shaped to reduce the propensity for solder to wick from the attachment area during a reflow operation. Reducing the propensity of solder to wick reduces the chance that solder will interfere with the operation of the electronic component. Additionally, reducing the propensity for solder to wick allows pads to which the contact tail is attached to be positioned over vias, thereby increasing the density with which contacts may be attached to a substrate. The reliability with which electronic assemblies incorporating components using the contact tail is also increased when the contact tail is used in self-centering arrays.
Abstract:
The present invention relates to an improved printed circuit board (PCB) surface mount connection structure. The present invention more particularly relates to a printed circuit board (1) comprising at least one circuit component (5) in electrical connection with conductive paths or bond pads of said printed circuit board (1), said printed circuit board (1) further comprising at least one outer substrate layer provided with a recess (8).
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a highly reliable semiconductor integrated circuit device in an onboard QFN-type package or the like which requires high reliability. SOLUTION: In a method of manufacturing a semiconductor integrated circuit device of a QFN-type package using a multiple leadframe having tie bars for bundling the outer ends of a plurality of leads, a sealing resin filling the gap between the outer circumference of a mold cavity and the tie bars is removed by means of a laser beam and then surface treatment such as solder plating is carried out. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a reliable wiring board having a lead pin for ensuring full junction strength between the lead pin and a connection pad formed on the wiring board, and to provide the lead pin used for the wiring board. SOLUTION: In the wiring board 30 having the lead pin 20, the lead pin 20 is jointed to a connection pad 12 formed on a wiring board 10 via a conductive material 14, a projection 20c is formed at a surface side, opposing the connection pad 12 of a head section 20b formed at one end of a shaft section 20a, and tapered sections 20d, 20e are formed between the head section 20b and the base part of the shaft section 20a, and between the head section 20b and the base part of the projection 20c. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a surface mounting discharge tube which is capable of suppressing positional deviation at the time of soldering, and having sufficient PCT properties. SOLUTION: The surface mounting discharge tube has a structure as a cylindrical ceramic envelope is sealed at the both ends with a surface of an electrode, respectively, and the tube is designed to be directly soldered onto a mounting board, wherein a respective electrode at the both ends is rectangular and extended outwardly from the peripheral edge of the cylindrical ceramic envelope, and has a taper or step differences for soldering at the peripheral edge on a side surface of an electrode. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A semiconductor device manufactured by using resin, lead frame, and manufacturing method of lead frame are provided to improve a mounting intensity about a circuit board without increase of a lead dimension of a semiconductor device by lifting a lead to a top surface using a soldering material. A semiconductor device includes a device and metal lead(2). The device is covered with a resin(1) mold. The metal lead includes a protrusion part and a lead tip part(4). The protrusion part protrudes from the resin mold. The lead tip part is positioned in a tip of the protrusion part. The protrusion part and the lead tip part of the metal lead are all covered by solder plating.
Abstract:
A device includes a circuit element, a housing for the circuit element and a terminal for coupling the circuit element to an electrical circuit. The terminal includes an engagement portion and a sleeve portion. The engagement portion is configured to engage a base for the electrical circuit. The sleeve portion couples the engagement portion to the circuit element. The housing encloses the sleeve portion.