摘要:
Example embodiments are directed to circuit boards, connectors, cases, circuit board assemblies, case assemblies, devices and methods of manufacturing the same, which are common to at least two different form factors. According to example embodiments, a solid state device (SSD) may include a circuit board, a connector, and a case. The circuit board may include a unibody board common to at least a first and a second form factor, first circuit board connection terminals of the first form factor on a front side of the board, and second circuit board connection terminals of the second form factor on a back side of the board. The connector may include connector connection terminals, where only one of the first circuit board connection terminals and the second circuit board connection terminals are connected to the connector connection terminals.
摘要:
A semiconductor memory module having a reverse mounted chip resistor, and a method of fabricating the same are provided. By reverse mounting the chip resistor on the semiconductor memory module, the resistive material is protected, thereby preventing open circuits caused by damage to the resistive material. Also, a chip-resistor connection pad of a module substrate is formed to extend higher from the module substrate than other connection pads connected to other elements. Thus, the resistive material of the chip resistor does not contact the module substrate, thereby preventing poor alignment and defective connections.
摘要:
A semiconductor device includes a semiconductor package, a circuit board and an interval maintaining member. The semiconductor package has a body and a lead protruded from the body. The circuit board has a first land electrically connected to the lead. The interval maintaining member is interposed between the circuit board and the body. The interval maintaining member maintains an interval between the lead and the first land. Thus, an interval between the lead and the land is uniformly maintained, so that a thermal and/or mechanical reliability of the semiconductor device is improved.
摘要:
A stacked semiconductor module, a method of fabricating the same, and an electronic system using the module are provided. A first semiconductor module having a plurality of semiconductor devices mounted on a rigid printed circuit board (PCB) and a second semiconductor module having a plurality of other semiconductor devices mounted on a flexible PCB are provided. On the rigid PCB a number L of first tabs may be disposed on a first surface, and a number K of second tabs may be disposed on a second surface of the rigid PCB. The flexible PCB may have a number M of third tabs on a third surface, and a number N of fourth tabs on a fourth surface of the flexible PCB. The second tabs may be combined with the third tabs using a conductive adhesive. The third tabs may be electrically connected to corresponding ones of the second tabs.
摘要:
A pressure conductive sheet includes a connector body formed of a thin plate of insulation material, an elastic body deposited as one body with the connector body, pluralities of connection terminals provided with a given interval to pass through the elastic body and the connector body, and a ground plate constituting a matching circuit, the ground plate being buried by a given width in between the connector body and the elastic body. The ground plate is coupled to a ground terminal among the connection terminals and is separated from an outer circumference face of a signal terminal. The connector body, the elastic body, the connection terminals and the ground plate are combined with one another to substantially reduce an interference between signal terminals through the matching circuit formed based on capacitance of a gap between a ground face of the ground plate and the signal terminal, and to improve electrical characteristics.
摘要:
One embodiment exemplarily described herein can be generally characterized as a heat sink for an electronic component. The heat sink may include a main body thermally contactable to an electronic component; at least one fin thermally contacted with the main body; and a confining member. The at least one fin and the confining member may be cooperatively engaged such that the at least one fin is moveable between a first position relative to a longitudinal axis of the main body and a second position relative to the longitudinal axis of the relative to the main body.
摘要:
A semiconductor device includes a semiconductor package, a circuit board and an interval maintaining member. The semiconductor package has a body and a lead protruded from the body. The circuit board has a first land electrically connected to the lead. The interval maintaining member is interposed between the circuit board and the body. The interval maintaining member maintains an interval between the lead and the first land. Thus, an interval between the lead and the land is uniformly maintained, so that a thermal and/or mechanical reliability of the semiconductor device is improved.
摘要:
Example embodiments may be directed to a printed circuit board having an insulating substrate, pads disposed on the surface of the insulating substrate, a solder resist, and a solder moving portion. Leads of a semiconductor package may be mounted on the insulating substrate. The pads to which the leads of the semiconductor package are connected may be disposed on the surface of the insulating substrate. The solder resist layer may cover the insulating substrate, but may also contain openings exposing at least a portion of the pads to which the leads of the semiconductor package are connected. During the process by which each semiconductor lead is connected to a pad, the solder moving portion on the pad may allow an adhesion solder coating each of the leads of the semiconductor package to move towards a shoulder portion of the semiconductor package leads.
摘要:
A lead frame unit, a semiconductor package having a lead frame unit, a stacked semiconductor package having a semiconductor package, and methods of manufacturing the same are provided. The lead frame unit in a stacked semiconductor package may include a die pad supporting a semiconductor chip, an inner lead electrically connected to the semiconductor chip, an outer lead extending from the inner lead, and a heat-resistant insulation member surrounding the connection portion. The outer lead may include a connection portion connected to the inner lead and a junction portion connected to the connection portion and a circuit board. An external signal may be applied to the junction portion. If the lead frame unit is used in the stacked semiconductor package, the outer lead and a dummy outer lead in the stacked semiconductor package may have substantially the same shape.
摘要:
A printed circuit board (PCB) may include a substrate. A copper layer may be formed over a portion of the substrate, the copper layer including at least one of a metallic powder and a ceramic powder.