ML Architecture for Solving the Inverse Problem for Matter Wave Lithography: LACENET


This recent technical paper titled "Realistic mask generation for matter-wave lithography via machine learning" was published by researchers at University of Bergen (Norway). Abstract: "Fast production of large area patterns with nanometre resolution is crucial for the established semiconductor industry and for enabling industrial-scale production of next-generation quantum devices. Metasta... » read more

Why Mask Blanks Are Critical


Geoff Akiki, president of Hoya LSI at the Hoya Group, sat down with Semiconductor Engineering to talk about optical and extreme ultraviolet (EUV) lithography as well as mask blanks. What follows are excerpts of that discussion. SE: Mask blanks are components that serve as the base or the substrate for a photomask. Why are they critical? Akiki: If you look at Hoya, we've been positioned as... » read more

Novel Etch Technologies Utilizing Atomic Layer Process For Advanced Patterning


We demonstrated a high selective and anisotropic plasma etch of Si3N4 and SiC. The demonstrated process consists of a sequence of ion modification and chemical dry removal steps. The Si3N4 etch with H ion modification showed a high selectivity to SiO2 and SiC films. In addition, we have developed selective etch of SiC with N ion modification. On the other hand, in the patterning etch processes,... » read more

2019-2020 Mask Maker Survey Results


The survey results of the 2019-2020 Mask Maker Survey from the eBeam Initiative. • Multi-Beam and EUV Trends Becoming Visible • 558,834 masks reported by 10 different companies than last year • Masks written with Multi-Beam Mask Writers more than doubled • EUV mask yield reported at 91% • MPC usage increasing at leading edge nodes Click here to see the presentation. » read more

Week In Review: Manufacturing, Test


Fab tools The confidence level of extreme ultraviolet (EUV) lithography continues to grow as the technology moves into production, but the EUV mask infrastructure remains a mixed picture, according to new surveys released by the eBeam Initiative. D2S has developed new hardware and software that enables a long-awaited technology--full-chip masks using inverse lithography technology (ILT). ... » read more

Insider’s Guide To Photomasks


Semiconductor Engineering sat down to talk about photomasks and lithography with Franklin Kalk, executive vice president of technology at Toppan Photomasks, a merchant photomask supplier. What follows are excerpts of that conversation. SE: What’s hot in mask technology these days? Kalk: It’s everything from the bleeding-edge like EUV to much more mature manufacturing. On the mature si... » read more

Gaps Remain For EUV Masks


Extreme ultraviolet (EUV) lithography is once again at a critical juncture. The oft-delayed technology is now being targeted for 7nm. But there are still a number of technologies that must come together before EUV is inserted into mass production at that node. First, the EUV source must generate more power. Second, tool uptime must improve. Third, the industry needs better EUV resists. A... » read more

5 Technologies To Watch


The industry is developing a dizzying array of new technologies. In fact, there are more new and innovative technologies than ever before. And the list is countless. At least from my vantage point, I have come up with my own list of the top five technologies to watch in 2015 and beyond. They are listed in alphabetical order. (See below). Obviously, there are more than just five technologi... » read more

Challenges Mount For EUV Masks


ASML Holding’s first production-worthy scanners for extreme ultraviolet (EUV) lithography are expected to ship this year, but there are still a number of challenges to bring the technology into high-volume manufacturing. As before, the three main challenges for EUV are the power sources, resists and photomasks. To date, the resists are making progress, while the EUV power sources remain a ... » read more