Abstract: Provided are a stack package and a stack packaging method. The stack package includes: a first package; and a second package stacked on the first package, wherein external leads of the first package and the second package are directly connected to one another and inner leads thereof are arranged in different shapes so that the Chip Select signal of the second package are input through a No Select pin of the first package.

Abstract: Provided are a stack package and a stack packaging method. The stack package includes: a first package; and a second package stacked on the first package, wherein external leads of the first package and the second package are directly connected to one another and inner leads thereof are arranged in different shapes so that the Chip Select signal of the second package are input through a No Select pin of the first package.

Abstract: A semiconductor package including at least one semiconductor chip and inner leads may be provided. The semiconductor package may include a semiconductor chip. A plurality of inner leads having upper surfaces and lower surfaces, may be electrically connected to the semiconductor chip, and may be spaced apart from the semiconductor chip. A molding resin may fix the semiconductor chip and the inner leads. The upper surfaces of the inner leads may be fixed to the molding resin, the lower surfaces of the inner leads may be exposed from the molding resin, and widths of the lower surfaces of the inner leads may be narrower than widths of the upper surfaces of the inner leads.

Abstract: Provided are highly reliable, high density stacked semiconductor packages including a plurality of semiconductor chips and a method of manufacturing the stacked semiconductor package. An embodiment of the stacked semiconductor package includes upper and lower semiconductor packages which are sequentially stacked. The upper and lower semiconductor packages include inner leads connected to semiconductor chips. The upper semiconductor package may further include outer leads connected to the inner leads of the upper semiconductor package and that extend outside an encapsulant to be electrically connected to the inner leads of the lower semiconductor package.

Abstract: A multi-chip stack package does not include a die pad. The elimination of the die pad provides more room for elements in the package which. Thus, a balanced inner package structure can be achieved, and a poor molding which may expose one of the package elements can be avoided. In the package, an upper chip is bonded to the top surface of a lower chip. To stabilize the chips, auxiliary or inner leads of a lead frame attach to the top surface of a lower chip. This shortens wire lengths between the chips and the inner leads. The shorter wires reduce wire loop heights and thus reduce the probability of exposing wires in a subsequent transfer-molding. A multi-chip stack package which includes an auxiliary lead(s) is also disclosed. The auxiliary leads attach to the top surface of the lower chip and can provide a stable support of a semiconductor chip and prevent the chip from tilting and shifting in transfer-molding. An auxiliary lead can be between the lower and upper chips.