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Message   VRSS    All   NVIDIA's CuLitho Gains Support from TSMC and Synopsys   March 18, 2024
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Title: NVIDIA's CuLitho Gains Support from TSMC and Synopsys

Date: Mon, 18 Mar 2024 18:00:00 EDT
Link: https://www.anandtech.com/show/21309/nvidias-...

Last year, NVIDIA introduced its CuLitho software library, which promises to
speed up photomask development by up to 40 times. Today, NVIDIA announced a
partnership with TSMC and Synopsys to implement its computational lithography
platform and use the company's next-generation Blackwell GPUs for AI and HPC
applications.

The development of photomasks is a crucial step for every chip ever made, and
NVIDIA's CuLitho platform, enhanced with new generative AI algorithms,
significantly speeds up this process. NVIDIA says computational lithography
consumes tens of billions of hours per year on CPUs. By leveraging GPU-
accelerated computational lithography, cuLitho substantially improves over
traditional CPU-based methods. For example, 350 NVIDIA H100 systems can now
replace 40,000 CPU systems, resulting in faster production times, lower
costs, and reduced space and power requirements.

NVIDIA claims its new generative AI algorithms provide an additional 2x
speedup on the already accelerated processes enabled through cuLitho. This
enhancement is particularly beneficial for the optical proximity correction
(OPC) process, allowing the creation of near-perfect inverse masks to account
for light diffraction.

TSMC says that integrating cuLitho into its workflow has resulted in a 45x
speedup of curvilinear flows and an almost 60x improvement in Manhattan-style
flows. Curvilinear flows involve mask shapes represented by curves, while
Manhattan mask shapes are restricted to horizontal or vertical orientations.

Synopsys, a leading developer of electronic design automation (EDA), says
that its Proteus mask synthesis software running on the NVIDIA cuLitho
software library has accelerated computational workloads compared to current
CPU-based methods. This acceleration is crucial for enabling angstrom-level
scaling and reducing turnaround time in chip manufacturing.

The collaboration between NVIDIA, TSMC, and Synopsys represents a significant
advancement in semiconductor manufacturing in general and CuLitho adoption in
particular. By leveraging accelerated computing and generative AI, the
partners are pushing semiconductor scaling possibilities and opening new
innovation opportunities in chip designs.

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