摘要:
A substrate of a semiconductor package comprises a conductor pattern which is formed in a surface layer, and is electrically connected to one terminal out of a power terminal and a ground terminal of a semiconductor element. The substrate also comprises in the surface layer a conductor pattern which is arranged while being separated from the conductor pattern, and a conductor pattern which is formed so as to have a wiring width thinner than that of the conductor pattern and connects the conductor pattern with the conductor pattern. The substrate also comprises a conductor pattern which is formed in an inner layer, faces the conductor pattern through a dielectric and is electrically connected to the other terminal out of the power terminal and the ground terminal of the semiconductor element.
摘要:
To improve the reliability in applying a tape to the rear surface of a substrate while securing the heat resistance of the tape applied to the rear surface of the substrate. There is a gap between a bottom surface of a ditch provided in a support member and an upper surface of a driver IC chip. On the other hand, the upper surface side of a lead frame is supported by the support member so that the bottom surface of the ditch contacts the upper surface of a Low-MOS clip mounted over a Low-MOS chip. Thus, even in a state where the driver IC chip and the Low-MOS chip are mounted on the upper surface side of the lead frame, the tape can be reliably applied to the rear surface of the lead frame (in particular, to the rear surface of the product region).
摘要:
The present disclosure relates to non-planar inductive electrical elements in semiconductor package lead frames. A non-planar inductive element is formed from a lead frame in a semiconductor package. The semiconductor package also includes at least one semiconductor die coupled to the lead frame. The non-planar inductive element could be formed by deforming portions of a patterned planar lead frame blank to form the non-planar inductive element in a deformed lead frame blank. The deformed lead frame blank and the at least one semiconductor die could then be packaged into a semiconductor package. A setting tool could be used to deform the lead frame blank. A configurable lead frame blank could be configurable into any of a variety of inductive elements, through interconnection of lead frame segments using wire bonds, for example.
摘要:
A packaged semiconductor device comprising a package and a semiconductor device is described. The semiconductor device comprises a first and a second GND-pad bonded to one or more GND-pins with a first and a second bond wire respectively, a first functional pad bonded to a first functional pin with a third bond wire, a semiconductor layer of a P-type conductivity, a first semiconductor component and a second semiconductor component. The first semiconductor component is arranged to, when a transient current is applied to the first functional pin, divert at least part of the transient current to the first GND-pad from the first P-region to the first GND-pad via at least a first PN-junction. The second semiconductor component comprises a second N-type region of a terminal of the second semiconductor component associated with the first functional pad. The first GND-pad is in contact with a second P-type region. The second GND-pad is in contact with a third N-type region. At least part of the second P-type region is arranged in between the first semiconductor component and the second semiconductor component, and at least part of the third N-type region is arranged in between the at least part of the first P-type region and the second semiconductor component.
摘要:
One exemplary disclosed embodiment comprises a three-terminal stacked-die package including a field effect transistor (PET), such as a silicon PET, stacked atop a III-nitride transistor, such that a drain of the PET resides on and is electrically coupled to a source of the III-nitride transistor. A first terminal of the package is coupled to a gate of the FET, a second terminal of the package is coupled to a drain of the III-nitride transistor. A third terminal of the package is coupled to a source of the FET. In this manner, devices such as cascoded switches may be packaged in a stacked-die form, resulting in reduced parasitic inductance and resistance, improved thermal dissipation, smaller form factor, and lower manufacturing cost compared to conventional packages.
摘要:
The present invention provides an electric circuit device in which it is possible to achieve simultaneously the improvement of cooling performance and reduction in operating loss due to line inductance. The above object can be attained by constructing multiple plate-like conductors so that each of these conductors electrically connected to multiple semiconductor chips is also thermally connected to both chip surfaces of each such semiconductor chip to release heat from the chip surfaces of each semiconductor chip, and so that among the above conductors, a DC positive-polarity plate-like conductor and a DC negative-polarity plate-like conductor are opposed to each other at the respective conductor surfaces.
摘要:
Aspects of the present disclosure relate to determining a layout of a racetrack that forms part of an RF isolation structure of a packaged module and the resulting RF isolation structures. Locations of where the racetrack can be adjusted (for example, narrowed) and/or removed without significantly degrading the EMI performance of the RF isolation structure can be identified. In certain embodiments, a portion of the racetrack can be removed to create a break and/or a portion of the racetrack can be narrowed in a selected area.
摘要:
An integrated circuit package for use in a switch mode power converter includes a portion of a lead frame disposed within an encapsulation. The lead frame includes a first conductor having an inner conductive loop disposed within the encapsulation, and a second conductor galvanically isolated from the first conductor having an outer conductive loop disposed within the encapsulation and magnetically coupled to the first conductive loop to provide a communication link between the first and second conductors. First and second control circuits are coupled to the first and second conductors, respectively. The first control circuit is coupled to control a switching circuit in response to one or more control signals communicated between first and second dice that include the first and second control circuits, respectively, through the communication link to regulate a transfer of energy from an input to an output of the switch mode power converter.
摘要:
A power transistor includes a plurality of transistor cells. Each transistor cell has a first electrode coupled to a first electrode interconnection region overlying a first major surface, a control electrode coupled to a control electrode interconnection region overlying the first major surface, and a second electrode coupled to a second electrode interconnection region overlying a second major surface. Each transistor cell has an approximately constant doping concentration in the channel region. A dielectric platform is used as an edge termination of an epitaxial layer to maintain substantially planar equipotential lines therein. The power transistor finds particular utility in radio frequency applications operating at a frequency greater than 500 megahertz and dissipating more than 5 watts of power. The semiconductor die and package are designed so that the power transistor can efficiently operate under such severe conditions.
摘要:
The present invention provides a submount which includes a semiconductor element and which can be easily connected to an IC on a main substrate. The submount in one embodiment of the present invention includes: a substrate; electrodes; the semiconductor element; Au wires; and gold bumps. The electrodes, the semiconductor element, the Au wires, and the gold bumps, are encapsulated on the substrate by a resin. The gold bumps are formed on the electrodes and the Au wires by ball bonding and are cut by dicing such that side surfaces of the gold bumps are exposed. The exposed surfaces function as side surface electrodes of the submount.