Julien Ryckaert

Vice president logic technologies
Author

Julien Ryckaert received the M.Sc. degree in electrical engineering from the University of Brussels (ULB), Belgium, in 2000 and the PhD degree from the Vrije Universiteit Brussel (VUB) in 2007. He joined imec as a mixed-signal designer in 2000 specializing in RF transceivers, ultra-low power circuit techniques and analog-to-digital converters. In 2010 he joined the process technology division in charge of design enablement for 3DIC technology. Since 2013, he is in charge of imec’s design-technology co-optimization (DTCO) platform for advanced CMOS technology nodes. He is now program director focusing on scaling beyond the 3nm technology node as well as the 3D scaling extensions of CMOS.

Portrait of Julien Ryckaert leaning on a railing, wearing a dark sweater over a collared shirt.

Authored articles

Cross-section of wafer interconnects linking the front and backside

A path to high-density front- and backside wafer connectivity

19/08/2025
Page-turner
3D integration

Advances in wafer-to-wafer hybrid bonding and backside technologies take CMOS 2.0 from concept to reality, offering more options for compute system scaling

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Groene lichtpuntjes verspreid over horizontale lagen, als een abstract beeld van vloeistofgeheugen

CMOS 2.0: bringing heterogeneity inside the system-on-chip

01/07/2024
Vision
CMOS: advanced & beyond

A new approach to miniaturization with greater versatility for compute system optimization

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Cross-section illustration of stacked semiconductor chip layers and interconnects

The CMOS 2.0 Revolution

17/01/2024
Featured in the media
CMOS: advanced & beyond

CMOS faces unprecedented scaling and cost challenges. This requires us to reimagine the existing paradigm.

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Cross-section diagram of backside power delivery through a semiconductor chip, with VDD and VSS connections labeled.

Backside power delivery options: a DTCO study

28/08/2023
Research update
Logic devices

Imec highlights the potential of backside power delivery for high-performance computing and evaluates options for backside connectivity

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Interior of imec’s 300mm cleanroom with rows of semiconductor equipment behind glass

System-technology co-optimization (STCO): unlocking system-scaling bottlenecks

12/12/2022
Vision
CMOS: advanced & beyond

System-technology co-optimization (STCO): translating future system needs into technology requirements in a top-down approach

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Groene lichtpuntjes verspreid over horizontale lagen, als een abstract beeld van vloeistofgeheugen

Imec puts complementary FET (CFET) on the logic technology roadmap

16/06/2022
Research update
Logic devices

Improved process flows make sequential CFET an attractive alternative to monolithic CFET.

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Close-up of a patterned semiconductor wafer with repeated chip structures in orange light

Scaling CMOS beyond FinFETs: from nanosheets and forksheets to CFETs

04/12/2019
CMOS: advanced & beyond
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Abstract blue 3D grid of raised cubes suggesting a semiconductor chip layout

A 3D technology toolbox in support of system-technology co-optimization

27/06/2019
3D integration
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