Invention Grant
- Patent Title: High-bandwidth ramp-stack chip package
- Patent Title (中): 高带宽斜坡堆栈芯片封装
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Application No.: US12507349Application Date: 2009-07-22
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Publication No.: US08476749B2Publication Date: 2013-07-02
- Inventor: Robert J. Drost , James G. Mitchell , David C. Douglas
- Applicant: Robert J. Drost , James G. Mitchell , David C. Douglas
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle America, Inc.
- Current Assignee: Oracle America, Inc.
- Current Assignee Address: US CA Redwood Shores
- Agency: Park, Vaughan, Fleming & Dowler, LLP
- Agent Steven E. Stupp
- Main IPC: H01L23/02
- IPC: H01L23/02

Abstract:
A chip package is described. This chip package includes a stack of semiconductor dies or chips that are offset from each other, thereby defining a terrace with exposed pads. A high-bandwidth ramp component, which is positioned approximately parallel to the terrace, electrically couples to the exposed pads. For example, the ramp component may be electrically coupled to the semiconductor dies using: microsprings, an anisotropic film, and/or solder. Consequently, the electrical contacts may have a conductive, a capacitive or, in general, a complex impedance. Furthermore, the chips and/or the ramp component may be positioned relative to each other using a ball-and-pit alignment technique. By removing the need for costly and area-consuming through-silicon vias (TSVs) in the semiconductor dies, the chip package facilitates chips to be stacked in a manner that provides high bandwidth and low cost.
Public/Granted literature
- US20110018120A1 HIGH-BANDWIDTH RAMP-STACK CHIP PACKAGE Public/Granted day:2011-01-27
Information query
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