Abstract:
There is a trend in the electronics industry towards a preference for components that can be surface mounted on a carrier, such as a circuit board. By using surface mountable leads on a component together with a "Single-In-Line" technique it is possible to surface mount a component (5) upstanding on a circuit board (7) with the component leads surface mounted on the board. The leads (8) may be bent at their bottom extremities and provided with feet (10) for effective contact with the board. Guide and support pins may be used to hold the component in position during mounting and connecting the component and to brace the leads on the component when mounted on the board.
Abstract:
Two flat packages (110, 111) are arranged to achieve a mirrored footprint by employing guides (100), which are positioned within a mounting aperture a printed circuit board. The flat packages include leads (120,121) which extend from the edge of the flat package. A semiconductor chip is encapsulated by the flat packages.
Abstract:
A semiconductor device (10) having a package (11) of a single in-line type comprises a semiconductor chip (15), a package body (11) that accommodates the semiconductor chip (15) therein and defined by a pair of opposing major surfaces (11a, 11b), a plurality of interconnection leads (14) held by the package body to extend substantially perpendicularly to a bottom surface (11 f ), wherein each of the interconnection leads consists of an inner lead part (14b) located inside the package body and an outer lead part (14a) located outside the package body, the outer lead part being bent laterally at a boundary between the inner part and outer part, in one of first and second directions that are opposite from each other and substantially perpendicular to the opposing major surfaces (11a, 11b) of the package body. The semiconductor device further includes a plurality of support legs (12a - 13b) extending laterally at the bottom surface (11 f ) of the package body for supporting the package body upright when the semiconductor device is placed on a substrate.
Abstract:
An electronic device (10) includes a package (16) having two posts (30) suitable for insertion in PCB holes. Package (16) presents a lengthwise molding plane (32) along which the upper portion (42) and bottom portion (44) of package (16) are mated during the molding process. Posts (30) are disposed substantially exclusively in bottom portion (44) so that posts (30) are asymmetric about lengthwise molding plane (32). Thus, even if a top mold (42a) and a bottom mold (44a) are misaligned there will be no effect on the dimensional tolerance of posts (30) and thus the tolerance of post (30) can be closely matched with a PCB hole (20) tolerance to insure a snug fit. Thus, device (10) is mounted edgewise on a PCB (18) by insertion of posts (30) into PCB holes (20) so that tips (24) of lead fingers (14) can be connected to PCB (18) by surfacing-mounting techniques or the like.
Abstract:
A semiconductor package having a gull-wing, zig-zag, inline-lead configuration and end-of-package anchoring devices for rigidly af fixing the package to a circuit board such that each lead is in compressive contact with its associated mounting pad on the board. The anchoring devices of a first embodiment comprise anchoring pins (12) having fish-hook-type barbs (20) which lock against the under side of the board (13) when the pins are inserted through holes (15) in the board; a second embodiment utilizes anchoring pins (54) which are adhesively bonded in recesses (52) that have been drilled or molded into the board (52); a third embodiment utilizes anchoring pins (62), the ends of which can be bonded directly to planar peg-bonding regions on the surface of the board (63); and a fourth utilizes tapered anchoring pin (74) which may be inserted with an interference fit into holes (75) in the board. The invention eliminates the need for mechanical support of the packages during solder reflow operations used during board assembly and repair.
Abstract:
A semiconductor package having a gull-wing, zig-zag, inline-lead configuration and end-of-package anchoring devices for rigidly af fixing the package to a circuit board such that each lead is in compressive contact with its associated mounting pad on the board. The anchoring devices of a first embodiment comprise anchoring pins (12) having fish-hook-type barbs (20) which lock against the under side of the board (13) when the pins are inserted through holes (15) in the board; a second embodiment utilizes anchoring pins (54) which are adhesively bonded in recesses (52) that have been drilled or molded into the board (52); a third embodiment utilizes anchoring pins (62), the ends of which can be bonded directly to planar peg-bonding regions on the surface of the board (63); and a fourth utilizes tapered anchoring pin (74) which may be inserted with an interference fit into holes (75) in the board. The invention eliminates the need for mechanical support of the packages during solder reflow operations used during board assembly and repair.
Abstract in simplified Chinese:本发明揭示一种可垂直装设的集成电路(IC)封装之制造方法。将一集成电路装设在一印刷电路板(PCB)上且电耦接至该PCB上的一结合衬垫。该结合衬垫与一嵌入该PCB中的信道耦接。分离出该IC、该结合衬垫、该信道及该PCB之一部分以产生一可垂直装设的IC封装。在分离期间沿横截面切开该信道以曝露该信道之一部分且借此为该IC封装提供一可装设区域。可将该IC封装囊封或包容于介电材料中。另外,可用防止氧化且促进可焊性之保焊剂或其他适当之无电极金属电镀沉积来处理该信道。