多个多凸点基岛露出型单圈引脚封装结构

Multi-salient-point base-island exposed single-circle pin packaging structure

Abstract

The utility model relates to a multi-salient-point base-island exposed single-circle pin ackaging structure which comprises base islands (1), pins (2), conductive or non-conductive bonding materials (6), chips (7), metal wires (8) and packed plastic-sealing materials (9), wherein the front surfaces and the back surfaces of the base islands (1) and the pins (2) are respectively provided with a first metal layer (4) and a second metal layer (5); the front surfaces of the base islands (1) are provided with the chips (7) by the conductive or non-conductive bonding materials (6); the front surfaces of the chips (7) and the first metal layers (4) at the front of the pins (2) are connected with each other by the metal wires (8); the front surfaces of the base islands (1) are set into a multi-salient-point-shaped structure; the plurality of base islands (1) are available; the pins are arranged in one circle; the periphery of the pins (2), the areas between the pins (2) and the base islands (1) and the areas among the base islands (1) are embedded with packless plastic-sealing materials (3); and the sizes of the back surfaces of the base islands (1) and the pins (2) are smaller than those of the front surfaces of the base islands (1) and the pins (2), so that the structures of the base islands (1) and the pins (2) which are larger at the upper part and smaller at the lower part can be formed. The multi-salient-point base-island exposed single-circle pin packaging structure has the benefit that a plastic-sealing body and a metal pin have high binding capacity.
本实用新型涉及一种多个多凸点基岛露出型单圈引脚封装结构,包括基岛(1)、引脚(2)、导电或不导电粘结物质(6)、芯片(7)、金属线(8)和填料塑封料(9),在所述基岛(1)和引脚(2)的正面和背面分别设置有第一金属层(4)和第二金属层(5),在基岛(1)正面通过导电或不导电粘结物质(6)设置有芯片(7),芯片(7)正面与引脚(2)正面第一金属层(4)之间用金属线(8)连接,所述基岛(1)正面设置成多凸点状结构,所述基岛(1)设置有多个,引脚(2)设置有一圈,在所述引脚(2)外围、引脚(2)与基岛(1)之间的区域以及基岛(1)与基岛(1)之间的区域嵌置无填料塑封料(3),且使所述基岛(1)和引脚(2)背面尺寸小于基岛(1)和引脚(2)正面尺寸,形成上大下小的基岛和引脚结构。本实用新型的有益效果是:塑封体与金属脚的束缚能力大。

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