Abstract:
A lead pin includes a shaft portion, and a connection head portion which is provided on a top end side of the shaft portion and has a diameter larger than a diameter of the shaft portion, and whose whole outer surface is formed of a spherical surface. The connection head portion is formed of a ball shape, an oval spherical shape, or a teardrop-like shape, and also the connection head portion of the lead pin is connected to a wiring substrate by the reflow soldering.
Abstract:
In a stacked package in which a plurality of packages having semiconductor elements mounted on substrates are stacked, while being electrically connected together, by use of connection sections, wherein the connection sections are formed from pillar-like members and solder joint sections and the upper package is supported on the lower package by pillar-like members.
Abstract:
PROBLEM TO BE SOLVED: To make improvements in an interconnection between microelectronic components by a method wherein a flexible extension element is mounted on a contact region on the electronic component and so formed as to be elastic. SOLUTION: A wire 502 is wrapped up in or covered with a first inner coating layer 520, and the first inner coating layer 520 is coated with a second outer coating layer 522 for the formation of a wire stem 530. The first layer 520 of the wire stem 530 is made to cover a terminal 512 as a contacting region on a semiconductor substrate 508 where the end 502a of the wire 502 is bonded, and the wire 502 of soft gold material is mounted and fixed to the terminal 512. By this setup, improvements can be made in an interconnection between microelectronic components.
Abstract:
The present invention provides an electronic assembly 400 and a method for its manufacture 800, 900, 1000 1200, 1400, 1500, 1700. The assembly 400 uses no solder. Components 406, or component packages 402, 802, 804, 806 with I/O leads 412 are placed 800 onto a planar substrate 808. The assembly is encapsulated 900 with electrically insulating material 908 with vias 420, 1002 formed or drilled 1000 through the substrate 808 to the components' leads 412. Then the assembly is plated 1200 and the encapsulation and drilling process 1500 repeated to build up desired layers 422, 1502, 1702.
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor package capable of obtaining a sufficient mechanical strength even on a thin wiring board. SOLUTION: The semiconductor package includes the wiring board 10 including connection pads C1 and C2 on both surfaces, respectively, and a supporting plate 40 made of an insulator, provided on one surface of the wiring board 10, including an aperture 40a at a part corresponding to the connection pad C2. An external connection terminal (such as a lead pin) is provided on the connection pad C2 on a face where the supporting plate 40 of the wiring board 10 is provided, and a semiconductor chip 3 is mounted on the connection pad C1 on the opposite face. COPYRIGHT: (C)2010,JPO&INPIT