摘要:
A packaged semiconductor device includes an insulating film having an opening, a semiconductor chip disposed in the opening of the insulating film and having a plurality of electrodes, a plurality of leads, each having one end connected to a corresponding electrode, the plurality of leads being supported on the insulating film, a heat radiator disposed opposite and spaced from the semiconductor chip, and a resin package body encapsulating the semiconductor chip and part of the heat radiator, leaving a surface of the heat radiator externally exposed and the second ends of the plurality of leads extending outwardly from the package.
摘要:
A carrier tape includes a film having an opening for receiving a semiconductor chip to be resin-molded by a pair of mold halves and outer lead holes formed around the periphery of the opening, a plurality of leads for mounting the semiconductor chip on the film, and a resin running portion cooperating, when the mold halves are closed with the film held between the mold halves, with a gate formed on a parting surface of one of the mold halves to define a resin running path which extends from a portion of the film outside the outer lead holes to the opening for guiding a molten resin into the mold halves while preventing the resin from entering the outer lead holes.
摘要:
A package structure comprising a metallic cap having a bottom wall to which the bottom surface of the semiconductor chip is electrically and mechanically connected, a side wall extending from said bottom wall and surrounding the semiconductor chip, and a flange extending outwardly from said side wall substantially parallel to said bottom wall, said flange supporting the lead conductors thereon through an electrically insulating material. The electrical connection means is disposed between the metallic cap flange and the lead conductor for establishing an electrical connection therebetween. The electrical connection means may comprise an electrically conductive projection formed on the flange of the metal cap, extending through a notch in the insulating material and electrically connected to the lead conductor. The electrical connection means may be an electrically conductive bonding material filled within a cavity defined by an opening in the flange of the metal cap, a through hole in the insulating material and a connecting pad of the lead conductor.
摘要:
A manufacturing method for a semiconductor device in which an electrode of a semiconductor chip is electrically connected to an inner lead of a carrier tape. The electrodes of the semiconductor chip are brought into contact with the inner lead of the carrier tape. Bonding is performed with inner lead droop controlled to no more than 80 .mu.m.
摘要:
A semiconductor device according to the present invention has reduced inductance on a power supply line, a grounding line, and signal lines. In this invention, to reduce the length of the power supply connection and that of the grounding connection, a power supply metal post and a grounding metal post are respectively provided on a power supply lead of a semiconductor chip and grounding lead of the semiconductor chip perpendicular to the leads. The metal posts protrude from the resin encapsulating the chip and are connected to lands or a conductive circuit pattern on a printed circuit board. Furthermore, a planar conductor commonly connecting the power supply or grounding potentials is provided.
摘要:
A laser OLB apparatus includes an XY table; a bonding laser source for irradiating bonding parts between bonding lands of a substrate and leads of a semiconductor device located on the substrate thereby bonding the bonding parts; a recognition device for recognizing whether the leads of the semiconductor device are free of flexure and deviation; and a control unit for controlling the XY table and the laser source so that bonding is conducted only when the recognition device has recognized that the leads are free of flexure and deviation.
摘要:
A bonding device for effecting outer lead bonding is disclosed which comprises a bonding stage, a pair of bonding tools, and lead supporting means. The lead supporting means may take the form of a pair of projections formed on the upper surface of the bonding stage at horizontal locations thereof which are situated below the lead supporting portion of the tape carrier. Alternatively, the lead supporting means may take the form of a pair of horizontally extending rectangular columns which are retractably inserted into the above specified horizontal locations of the upper surface of the bonding stage. Thus, leads can be formed simultaneously with the outer lead bonding. The bonding stage may be divided into upper and lower stages, and the projections may be formed on the upper surface of the lower stage to extend through holes formed in the upper stage. This structure makes the projections retractable.
摘要:
A semiconductor device includes a molded resin encapsulating a semiconductor chip, outer leads extending from the molded resin and having free ends, and a resin layer connecting and supporting the outer leads along the entire length of the outer leads. The resin layer may have an activating ability for soldering. A method for manufacturing a semiconductor device includes preparing a semiconductor device having a molded resin and a plurality of outer lead portions extending from the molded resin and connected to a lead frame, forming a resin film on and between the outer lead portions; cutting the lead portions to provide cantilevered outer leads having free ends; lead-forming the outer leads with lead-forming dies while heating the resin film to form a resin layer connecting and supporting the outer leads along the entire lengths of the outer leads, and taking the semiconductor device out of the lead-forming dies after the resin layer has been cured.
摘要:
A tape carrier utilized in the tape automated bonding of semiconductor chips is disclosed which comprises a polyimide tape-shaped film having apertures therein, and patterns of leads and reinforcing members formed on a surface of the film. The reinforcing members may be made of the same material as the leads, such as copper, and formed by a single photoetching process on the film. The reinforcing members are disposed on those areas of the film which lie outside of the leads and which are subjected to stress during the sealing of the semiconductor chips into a resinous mold subsequent to the inner lead bonding thereof. For example, the reinforcing members may be disposed in the lead supporting zones of the film, or around the corners of the outer-lead apertures. The reinforcing members reduces the stresses exerted on the leads during the molding of the chips, so that the deformations thereof during the same process are minimized.
摘要:
A pad electrode is formed on a main surface of a semiconductor chip. A passivation film, which covers a surface portion of the pad electrode, is formed on the main surface of the semiconductor chip. An internal connection conductor is formed on a surface portion of the pad electrode. The semiconductor chip is covered with a molding resin which exposes only a top surface of the internal connection conductor. An external connection conductor is formed on a top surface of the internal connection conductor. The external connection conductor has a substantially flat top surface. Thereby, a plastic molded semiconductor package can be easily mounted on a printed board, and can have improved reliability after being joined on the printed board.