Patent ID: 7902654
Filing Date: 2011-03-08
Classification: H01L,H03K

Abstract:
1. An integrated circuit comprising: a package including a first package-substrate connection, a second package-substrate connection, and metallization coupling the first package-substrate connection to the second package-substrate connection; and a substrate electrically and physically coupled to the package via the first package-substrate connection and the second package-substrate connection, the substrate comprising a plurality of power domains and a power control unit, the second package-substrate connection coupled to a particular power domain of the plurality of power domains, the power control unit comprising logic and a switch, the switch including a first terminal coupled to a voltage supply terminal, a control terminal coupled to the logic, and a second terminal coupled to the first package-substrate connection, the logic configured to selectively activate the switch to distribute power to the particular power domain via the metallization of the package, wherein the switch further comprises a plurality of independent transistors in parallel, and the logic activates the plurality of independent transistors in stages to provide a ramped supply voltage to the second terminal.