摘要:
The present invention includes a die pad; signal leads, ground connection leads connected to the die pad; a semiconductor chip including electrode pads for grounding; metal thin wires, and an encapsulating resin for encapsulating the die pad and the semiconductor chip and encapsulating the signal leads and the ground connection lead such that lower portions of the signal leads and the ground connection lead are exposed as external terminals. The ground connection lead is connected to the electrode pad for grounding, so that the resin-encapsulated semiconductor device is electrically stabilized. Furthermore, interference between high frequency signals passing through the signal leads can be suppressed by the die pad and the ground connection leads.
摘要:
A leadframe includes: a frame rail; a die pad, disposed inside the frame rail, for mounting a semiconductor chip thereon; and a plurality of internal inner leads, which are disposed to surround the die pad and each of which has a convex portion on the bottom thereof. The frame rail and the internal inner leads are retained by a lead retaining member on their upper and/or lower surface(s).
摘要:
A leadframe includes: a frame rail; a die pad, disposed inside the frame rail, for mounting a semiconductor chip thereon; and a plurality of internal inner leads, which are disposed to surround the die pad and each of which has a convex portion on the bottom thereof. The frame rail and the internal inner leads are retained by a lead retaining member on their upper and/or lower surface(s).
摘要:
A semiconductor-element mounting substrate is a substrate for mounting a semiconductor element, and includes a substrate body. The substrate body has a mounting surface, and the center portion of the mounting surface is provided with a die pattern. Through conductors are provided in a portion of the substrate body located outside the die pattern to penetrate the substrate body in the thicknesswise direction. First terminals and second terminals are connected to the through conductors, respectively. The first terminals each extend toward the outer edge of the mounting surface, and they are electrically connected to the semiconductor element. The second terminals are provided on a surface of the substrate body opposite to the mounting surface.
摘要:
A semiconductor-element mounting substrate is a substrate for mounting a semiconductor element, and includes a substrate body. The substrate body has a mounting surface, and the center portion of the mounting surface is provided with a die pattern. Through conductors are provided in a portion of the substrate body located outside the die pattern to penetrate the substrate body in the thicknesswise direction. First terminals and second terminals are connected to the through conductors, respectively. The first terminals each extend toward the outer edge of the mounting surface, and they are electrically connected to the semiconductor element. The second terminals are provided on a surface of the substrate body opposite to the mounting surface.
摘要:
A lead frame includes a die pad, a suspension lead and a plurality of leads. The group of leads include at least three kinds of leads, including first, second and third leads. While the first lead and the third lead are connected to each other upon production of the lead frame, a connecting portion therebetween has a smaller thickness than that of the frame body so that the first lead and the third lead can be separated from each other in a subsequent step.
摘要:
A resin-encapsulated semiconductor device includes a die pad, a semiconductor chip mounted on the die pad, and a group of leads. The group of leads include at least three kinds of leads, including first, second and third leads. While the first lead and the third lead are connected to each other upon production of the lead frame, the first lead and the third lead are separated from each other in a subsequent step. Moreover, a thin metal wire for connecting an electrode of the semiconductor chip to the bonding pad of each lead, and an encapsulation resin for encapsulating the semiconductor chip, the leads, the thin metal wire, etc., are provided. The pad of each lead is exposed on a surface of the encapsulation resin so that the pad can function as an external terminal.
摘要:
A semiconductor image sensor includes: a semiconductor imaging element including an imaging area, a peripheral circuit area, and an electrode area; cylindrical electrodes provided on electrode terminals so as to be electrically connected with an external device; and a transparent resin layer provided on the upper surface of the semiconductor imaging element. The upper surface of each cylindrical electrode and the upper surface of the transparent resin layer are substantially of the same height.
摘要:
A plurality of parallel rib prototypes are provided on a flat base plate. A plurality of semiconductor elements are placed in each trench between adjacent ones of the rib prototypes, and a transparent member is bonded to each of the semiconductor elements. Electrode pads of the semiconductor elements are wire bonded to connection electrodes. The trenches are then filled with an encapsulating resin. Thereafter, middle portions, in the longitudinal direction, of the rib prototypes are cut with a dicing saw, and adjacent ones of the semiconductor elements are separated from each other, thereby obtaining semiconductor devices.
摘要:
An aluminum wire is bonded to a silicon electrode by a wedge tool pressing the aluminum wire against the silicon electrode. In this way, a firmly bonded structure is obtained by sequentially stacking aluminum, aluminum oxide, silicon oxide, and silicon.