Abstract: A semiconductor package is disclosed. The package includes a leadframe having drain, source and gate leads, and a semiconductor die coupled to the leadframe, the semiconductor die having a plurality of metalized source contacts. A bridged source plate interconnection has a bridge portion, valley portions disposed on either side of the bridge portion, plane portions disposed on either side of the valley portions and the bridge portion, and a connection portion depending from one of the plane portions, the bridged source plate interconnection connecting the source lead with the plurality of metalized source contacts. The bridge portion is disposed in a plane above the plane of the valley portions while the plane portions are disposed in a plane intermediate the plane of the bridge portion and the plane of the valley portions.
Abstract: A composite semiconductor package is disclosed. The package includes a lead frame having first and second die bonding pads, the first and second die bonding pads having a large lateral separation therebetween, a first device bonded to the first die bonding pad, a second device bonded to the second die bonding pad, a plurality of first leads coupled to the first die bonding pad, a plurality of second leads coupled to the second die bonding pad, and an encapsulant covering the lead frame, the first and second devices and at least a portion of the first and second pluralities of leads. The package may be a TSSOP-8 composite package having a common drain MOSFET pair and an IC.
Type:
Grant
Filed:
December 22, 2005
Date of Patent:
November 3, 2009
Assignee:
Alpha and Omega Semiconductor Limited
Inventors:
Xiaotian Zhang, Argo Chang, James Lee, Ryan Huang, Kai Liu, Ming Sun
Abstract: A semiconductor device comprises a drain, a body disposed over the drain, having a body top surface, a source embedded in the body, extending downward from the body top surface into the body, a gate trench extending through the source and the body into the drain, a gate disposed in the gate trench, a source body contact trench having a trench wall and an anti-punch through implant that is disposed along the trench wall.
Abstract: A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
Type:
Grant
Filed:
February 15, 2005
Date of Patent:
July 1, 2008
Assignee:
Alpha & Omega Semiconductor Limited
Inventors:
Leeshawn Luo, Kai Liu, Ming Sun, Xiao Tian Zhang
Abstract: A semiconductor integrated circuit package having a leadframe (108) that includes a leadframe pad (103a) disposed under a die (100) and a bonding metal area (101a) that is disposed over at least two adjacent sides of the die. The increase in the bonding metal area (101a) increases the number of interconnections between the metal area (101a) and the die (100) to reduce the electric resistance and inductance. Furthermore, the surface area of the external terminals radiating from the package's plastic body (106) is increased if not maximized so that heat can be dissipated quicker and external terminal resistances reduced. The integrated circuit is applicable for MOSFET devices and the bonding metal area (101a) is used for the source terminal (101). The bonding metal area may have a “L” shape, a “C” shape, a “J” shape, an “I” shape or any combination thereof.
Type:
Grant
Filed:
October 25, 2004
Date of Patent:
June 24, 2008
Assignee:
Alpha & Omega Semiconductor Limited
Inventors:
Leeshawn Luo, Anup Bhalla, Yueh-Se Ho, Sik K. Lui, Mike Chang