US 12,118,283 B1 · Automatic channel identification of high-bandwidth memory channels for auto-routing

Abstract

Methods and systems are described herein relate to automatic channel identification of high-bandwidth memory channels and subchannel generation. An HBM channel identification system may perform a sequence of operations to identify HBM channels within a netlist of an interposer: channel dimension prediction, channel bounding box prediction, channel orientation derivation, subchannel partition, and subchannel routing region creation. In one example, an HBM channel identification method includes identifying candidate nets within a netlist. A bounding box that includes one or more nets of the candidate nets is determined. Once the bounding box is determined, the orientation of the box is determined and used to determine a pattern of bumps within the bounding box. Finally, a subchannel is generated based on the pattern of bumps.

Claims20

Dependent claims

A non-transitory computer readable medium comprising stored instructions, which when executed by a processor, cause the processor to:

determine a bounding area comprising one or more nets from a plurality of candidate nets within a netlist;
determine whether a gap is present between a first group of bumps and a second group of bumps within the bounding area;
identify, responsive to determining the gap is present, a memory channel associated with the bounding area;
determine an orientation of the memory channel associated with the bounding area;
and
create a subchannel based on the orientation.

3 more elements

A system comprising:

a memory storing instructions;
and
a processor, coupled with the memory and to execute the instructions, the instructions when executed cause the processor to:
determine a bounding area comprising one or more nets from a plurality of candidate nets within a netlist;
determine whether a gap is present between a first group of bumps and a second group of bumps within the bounding area;
identify, responsive to determining the gap is present, a memory channel associated with the bounding area;
determine an orientation of the memory channel associated with the bounding area;
and
create a subchannel based on the orientation.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/484,212Filed 10 Oct 2023 · continuation

Priority

21 Aug 2020

Granted

15 Oct 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06F 30/327
Circuit design at the digital level: logic synthesis; Behaviour synthesis, e.g. mapping logic, HDL to netlist, high-level language to RTL or netlist
G06F 30/392
Circuit design at the physical level: floor-planning or layout, e.g. partitioning or placement
G06F 30/398
Circuit design at the physical level: design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or…
G06F
Computing and data processing

Automatic channel identification of high-bandwidth memory channels for auto-routing

Life of this patent

Automatic channel identification of high-bandwidth memory channels for auto-routing

Life of this patent

Abstract

Claims20