# fabrication tolerance

Published articles for fabrication tolerance.

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## Ultra-Compact Photonic Bends Reduce Loss While Meeting Foundry Rules (Georgia Tech)

DevFeed: [Ultra-Compact Photonic Bends Reduce Loss While Meeting Foundry Rules (Georgia Tech)](<https://devfeed.tech/articles/ultra-compact-photonic-bends-reduce-loss-while-meeting-foundry-rules-georgia-tech-66451.md>)

Original publisher: [Read original article](<https://semiengineering.com/ultra-compact-photonic-bends-reduce-loss-while-meeting-foundry-rules-georgia-tech/>)

Author: Technical Paper Link

Published: 2026-10-06T21:45:13Z

Content type: article

Language: en

Sources: [Semiconductor Engineering](<https://devfeed.tech/sources/semiconductor-engineering.md>)

Topics: [Chip design](<https://devfeed.tech/topics/chip-design.md>), [clean energy data centers](<https://devfeed.tech/topics/clean-energy-data-centers.md>)

Tags: [design-verification](<https://devfeed.tech/tags/design-verification.md>), [fabrication-tolerance](<https://devfeed.tech/tags/fabrication-tolerance.md>), [foundry-design-rules](<https://devfeed.tech/tags/foundry-design-rules.md>), [georgia-institute-of-technology](<https://devfeed.tech/tags/georgia-institute-of-technology.md>), [georgia-tech](<https://devfeed.tech/tags/georgia-tech.md>), [globalfoundries-fotonix](<https://devfeed.tech/tags/globalfoundries-fotonix.md>), [integrated-photonics](<https://devfeed.tech/tags/integrated-photonics.md>), [inverse-design](<https://devfeed.tech/tags/inverse-design.md>), [manufacturing](<https://devfeed.tech/tags/manufacturing.md>), [optical-routing](<https://devfeed.tech/tags/optical-routing.md>), [optics](<https://devfeed.tech/tags/optics.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [optoelectronics-photonics](<https://devfeed.tech/tags/optoelectronics-photonics.md>), [paper](<https://devfeed.tech/tags/paper.md>), [photonic-design](<https://devfeed.tech/tags/photonic-design.md>), [photonic-integrated-circuits](<https://devfeed.tech/tags/photonic-integrated-circuits.md>), [pic](<https://devfeed.tech/tags/pic.md>), [silicon-photonics](<https://devfeed.tech/tags/silicon-photonics.md>), [technical-papers](<https://devfeed.tech/tags/technical-papers.md>), [topology-optimization](<https://devfeed.tech/tags/topology-optimization.md>), [waveguide-bends](<https://devfeed.tech/tags/waveguide-bends.md>), [waveguides](<https://devfeed.tech/tags/waveguides.md>)

### AI overview

Georgia Tech researchers report a methodology for designing compact integrated photonic waveguide bends. Their approach uses a contour constraint within a topology optimization framework to improve performance, reduce sensitivity to fabrication variability, and meet commercial foundry design rules. The paper reports experimental validation and a bend radius of 2.3 µm.

### Source excerpt

Researchers at Georgia Institute of Technology published a technical paper titled "Low-loss ultra-compact photonic bends with enhanced fabrication tolerance for commercial foundry processes." Abstract Excerpt: "We present a methodology and experimentally validate it with the design of high-performance integrated photonic waveguide bends in extremely compact footprints (2.3 µm radius). The approach uses what we believe... " read more The post Ultra-Compact Photonic Bends Reduce Loss While Meeting Foundry Rules (Georgia Tech) appeared first on Semiconductor Engineering.