Abstract:
A semiconductor device (10) includes a first memory die (12) having a first memory type, a second memory die (14) having a second memory type different from the first memory type, and a logic die (16) such as a microprocessor. The first memory die (12) can be electrically connected to the logic die (16) using a first type of electrical connection preferred for the first memory type. The second memory die (14) can be electrically connected to the logic die using a second type of electrical connection different from the first type of electrical connection which is preferred for the second memory type. Other devices can include dies of the same type, or two or more dies of a first type and two or more dies of a second type different from the first type.
Abstract:
Es wird ein Chipträger (1) angeben, der einen Montagebereich (10) zur Montage eines Halbleiterchips (2) und mindestens einer Vertiefung (12) in einer Oberfläche (11) des Montagebereichs (10) aufweist, wobei die Vertiefung (12) eine laterale Abmessung aufweist, die kleiner als eine laterale Abmessung des Halbleiterchips (2) ist. Weiterhin werden ein elektronisches Bauelement mit einem Chipträger und ein Verfahren zur Herstellung eines Chipträgers angegeben.
Abstract:
In a multi-module integrated circuit package having a package substrate and package contacts, a die is embedded in the package substrate with thermal vias that couple hotspots on the embedded die to some of the package contacts.
Abstract:
A semiconductor chip, (402) includes an array of electrical contacts, (412, 413) and multiple vias (416, 417) coupling at least one circuit in the semiconductor chip to the array of electrical contacts. A first one of the electrical contacts, (412) of the array of electrical contacts is coupled to N vias (416), and a second one of the electrical contacts (413) of the array of electrical contacts is coupled to M vias (417a, 4176). M and N are positive integers of different values.
Abstract:
A variety of semiconductor package arrangements and packaging methods are described that improve the reliability of bonding wires that down bond a die to a die attach pad. In one aspect, selected portions of the top surface of a lead frame (which may be in panel form) are plated (e.g., silver plated) to facilitate wire bonding. The plating covers some, but not all of a die attach surface of the die attach pad. In some preferred embodiments, the plating on the die attach pad is arranged as a peripheral ring that surrounds an unplated central region of the die support surface. In other embodiments, the plating on the die attach pad takes the form of bars or other geometric patterns that do not fully cover the die support surface. Unplated portions of the die support surface are roughened to improve the adherence of the die to the die attach pad, thereby reducing the probability of die attach pad delamination and the associated risks to down bonded bonding wires. The described lead frames may be used in a variety of packages. Most commonly, a die is attached to the die support surface of the die attach pad and electrically connected to the lead frame leads by wire bonding as appropriate. At least one of the die's bond pads (typically the ground bond pad(s)) is down bonded to the die attach pad. The die, the bonding wires and at least portions of the lead frame are then typically encapsulated with a plastic encapsulant material while leaving a contact surface of the die attach pad exposed to facilitate electrically coupling the die attach pad to an external device.
Abstract:
A stacked semiconductor device includes a plurality of first electrodes (4a - 4e) provided on a first printed wiring board (1) and columnar electrodes provided on the first electrodes. The stacked semiconductor device also includes a plurality of second electrodes (24a - 24e) provided on a second printed wiring board (21) and a plurality of solder electrodes (25). The columnar electrodes are formed of a material having a melting point higher than that of the solder electrodes, and the height of the columnar electrodes is set to increase as a distance between the first electrodes and the solder electrodes increases. This avoids connection failure without reducing joinability between two stacked semiconductor devices.
Abstract:
A method of manufacturing a semiconductor package includes providing a metallic leadframe (230) having a plurality of cantilever leads (230a) and a mounting area (255) for mounting a die (270), and disposing one or more non-conductive supports (210) adjacent to a recessed surface (235) of the cantilever leads to support the leads during die mount, wire bond, and encapsulation processes. The method further includes mounting the die in the mounting area and electrically connecting the die to the cantilever leads, and then encapsulating at least a portion of the die, the leadframe, and the supports with an encapsulant (280).