Japan's Sumitomo Chemical is in the race to develop photoresist for next-generation EUV, which is expected to come into use in 2027 or later. President Iwata suggests to compete on small-molecule organic photoresist that doesn't use metals. asia.nikkei.com/Business/Mater…

photoresist Arf-Arf-i 65-14nm began high-volume production in April
Some factories already have 7nm processes

Some fun artifacts in this run. Basically testing out resist + exposure parameters, and the under-exposed samples made some neat geometry.

(This is photoresist with a thick layer of copper sputtered on top, hence the rough grain structure)

Major Photoresist makers by market share.

Another dusting of primer to see how its looking so far... More greebles. And also looking at ways to better put the photoresist onto brass for etching

Japanese chip toolmakers have been doing well (high-quality companies too)

'Japanese toolmakers have long played dominant roles in niche areas of the semiconductor supply chain. Tokyo Electron controls roughly 90% of the market for tools which apply photoresist coating'

U.S. Collaborates With Japan Suppressing CCP’s Chipmaking Capability

The U.S. wants Japanese companies to limit exports to CCP China of specialized chemicals critical for chipmaking, including photoresist. Japan is home to several leaders in the photoresist, including Shin-Etsu

Research in the lab today was sooo fun i still don’t know what photoresist is though

App Note Tuesday 💡

DUV technology for photolithography is exclusively based on projection optics since the pattern on the photomask is much larger than the final pattern developed on the photoresist. #AppNote #Tuesday #Lithography

ow.ly/OBiY50RFQ73

Xuzhou Bokang: Laying out the entire industry chain to create a leading enterprise and continuing to tackle the localization of photoresist

Bokang is a company Huawei invests in... its domestic ratio is relatively high

photoresist tie dye

some more hard baked photoresist

photolithography process shots - az1518 photoresist post UV exposure on top of poly-3-hexylthiophene

fractals in photoresist bubbles and wrinkles in gold

Happy #MicroscopyMonday ! 'Fog City'🏙️showing selective area grown InP semiconductor pillars covered in photoresist!📸Jason Jung
🔬 #SEM #micrograph on JEOL JSM-7500FA at TU Eindhoven TU Eindhoven NEMI

Bio-Metamaterials for Mechano-Regulation of Mesenchymal #Stem #Cells : Young Scientists Natalie Munding & Magdalena Fladung designed & manufactured microstructured #metamaterials based on a #silicon #elastomer -like #photoresist & two-photon laser printing! doi.org/10.1002/adfm.2…

The very first successful experiment to make gold microetchings with a dark background. At the top is the etched bare photoresist, bottom where gold was applied in squares and then removed from background similar to how you wax a leg! A good day.
#technique #etching #gold #art

The Ober group and my group have open positions for joint postdocs with expertise in polymer chemistry. The project aims to develop photoresist polymers suitable for extreme ultraviolet lithography. Please help spread!

I'm sure this 10nm dense line/space pattern was printed at a dose of 20mJ w/ chemically amplified photoresist. Metal Oxide resist & ESPERT to the rescue! 😆 Sry but it's not a great image. The geometry size is impressive though. First of a kind -- record breaking, all that.

A Transparent Photoresist Made of Titanium Dioxide Nanoparticle-Embedded Acrylic Resin with a Tunable Refractive Index for UV-Imprint Lithography, by Yinglu Liu, Dan Wang, Changlin Liu, Qianqian Hao, ... Jian-Feng Chen #Photoresist
Read more: doi.org/10.1016/j.eng.…