Abstract: Disclosed is a semiconductor device having overlapped via apertures formed in an encapsulant to outwardly expose solder balls. When different types of semiconductor devices are electrically connected to the solder balls through the overlapped via apertures, flux or solder paste is unlikely to contact sidewall portions of the overlapped via apertures. Therefore, different types of semiconductor devices can be mounted with improved efficiency.

Abstract: Disclosed is a semiconductor device having overlapped via apertures formed in an encapsulant to outwardly expose solder balls. When different types of semiconductor devices are electrically connected to the solder balls through the overlapped via apertures, flux or solder paste is unlikely to contact sidewall portions of the overlapped via apertures. Therefore, different types of semiconductor devices can be mounted with improved efficiency.

Abstract: Disclosed is a semiconductor device having overlapped via apertures formed in an encapsulant to outwardly expose solder balls. When different types of semiconductor devices are electrically connected to the solder balls through the overlapped via apertures, flux or solder paste is unlikely to contact sidewall portions of the overlapped via apertures. Therefore, different types of semiconductor devices can be mounted with improved efficiency.

Abstract: Disclosed is a semiconductor device and its manufacturing method. By way of example, the semiconductor device includes a semiconductor die for sensing an external physical quantity, an insulating gel covering the semiconductor die, and an encapsulant which covers the insulating gel while the insulating gel is partially exposed to the exterior. Also, another semiconductor device further includes a dummy plate which has a hole and is seated on the insulating gel. In the manufacturing method of a semiconductor device, a mold having a through hole is provided and the through hole include a structure consisting of a movable pin and a spring for absorbing the expansion of the insulating gel during an encapsulation process. Also, another manufacturing method of a semiconductor device includes performing the encapsulation while the dummy plate is seated on the insulating gel.

Abstract: To provide a highly reliable semiconductor device which does not suffer from a crack in its package, a semiconductor chip 12 is mounted on a lead frame 11 with a bonding layer 13 between them, and they are sealed with a sealing resin 14. The lead frame 11 has a base member 11a essentially consisting of Cu and an oxide film 11b essentially consisting of an oxide of the base member 11a formed on the base member and having a thickness of about 50 nm or below. By controlling the oxide film 11b to a thickness of about 50 nm or below, an adhesion strength with the sealing resin 14 is improved greatly, so that a package crack does not occur even if a large thermal load is applied in a reflow process for mounting.

Abstract: To provide a highly reliable semiconductor device which does not suffer from a crack in its package, a semiconductor chip 12 is mounted on a lead frame 11 with a bonding layer 13 between them, and they are sealed with a sealing resin 14. The lead frame 11 has a base member 11a essentially consisting of Cu and an oxide film 11b essentially consisting of an oxide of the base member 11a formed on the base member and having a thickness of about 50 nm or below. By controlling the oxide film 11b to a thickness of about 50 nm or below, an adhesion strength with the sealing resin 14 is improved greatly, so that a package crack does not occur even if a large thermal load is applied in a reflow process for mounting.

Abstract: A chip mounting plate construction of lead frames for semiconductor packages which provides a chip mounting plate having a greatly reduced area to obtain a small bonding area between the chip mounting plate and a semiconductor chip mounted on the chip mounting plate, thereby capable of minimizing thermal strain generated at the chip mounting plate due to a thermal expansion thereof. The chip mounting plate is constructed to have a smaller area than the semiconductor chip, to have a central opening, or to have recesses.