Semiconductor memory card
View Patent ↗A semiconductor package for a semiconductor chip, e.g., a memory chip, is disclosed. The semiconductor package includes a substrate having a generally rectangular perimeter with four sidewalls and a chamfer between adjacent first and second ones of the sidewalls. The memory chip is electrically coupled contacts provided on an opposite surface of the substrate. The contacts are in a row along only the one sidewall of the substrate. A body of a plastic encapsulant covers the first surface of the substrate, the memory chip, and at least two of the sidewalls of the package. The entire perimeter of the substrate, including all four sidewalls and the chamfer, are covered by the plastic encapsulant. Alternatively, only two or three of the sidewalls are covered by the plastic encapsulant, with the other sidewall(s) being exposed and vertically coplanar with a respective sidewall of the plastic encapsulant.
1. A memory card comprising:
an insulative substrate comprising a generally rectangular perimeter with four sidewalls, a first surface with circuit patterns thereon, and a second surface opposite the first surface, wherein the second surface includes a row of contacts along only a first one of the sidewalls of the substrate, the contacts being electrically coupled through the substrate to the circuit patterns of the first surface;
a first semiconductor chip coupled to the first surface of the substrate and electrically coupled to the circuit patterns by a flip chip connection, whereby the first semiconductor chip is electrically coupled to the contacts; and
a body of a plastic encapsulant covering the first semiconductor chip, the first surface of the substrate, and at most three of the four sidewalls of the substrate, wherein at least one of the four sidewalls of the substrate is uncovered by the plastic encapsulant and is coplanar with a sidewall of the body of the plastic encapsulant.