Invention Grant
- Patent Title: Memory controller placement in a three-dimensional (3D) integrated circuit (IC) (3DIC) employing distributed through-silicon-via (TSV) farms
-
Application No.: US14602505Application Date: 2015-01-22
-
Publication No.: US09626311B2Publication Date: 2017-04-18
- Inventor: Sung Kyu Lim , Karamvir Singh Chatha , Yang Du , Kambiz Samadi
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Withrow & Terranova, PLLC
- Main IPC: G06F13/16
- IPC: G06F13/16 ; H01L25/065 ; G06F13/42 ; H01L23/48 ; H01L23/50 ; H01L25/18 ; H01L25/00 ; H01L27/06

Abstract:
Aspects disclosed in the detailed description include memory controller placement in a three-dimensional (3D) integrated circuit (IC) (3DIC) employing distributed through-silicon-via (TSV) farms. In this regard, in one aspect, a memory controller is disposed in a 3DIC based on a centralized memory controller placement scheme within the distributed TSV farm. The memory controller can be placed at a geometric center within multiple TSV farms to provide an approximately equal wire-length between the memory controller and each of the multiple TSV farms. In another aspect, multiple memory controllers are provided in a 3DIC based on a distributed memory controller placement scheme, in which each of the multiple memory controllers is placed adjacent to a respective TSV farm among the multiple TSV farms. By disposing the memory controller(s) based on the centralized memory controller placement scheme and/or the distributed memory controller placement scheme in the 3DIC, latency of memory access requests is minimized.
Public/Granted literature
Information query