Check out this nano-scale Rick Astley made with Electron beams.
The process of Electron-beam Lithography involves taking a silicon wafer and blasting it with electrons inside a vacuum chamber to create patterns in the wafer's acrylic coating, essentially it will"chop up the long polymer chains into short monomer chains" in order for them to be more easily dissolved when in development.
Tong actually utilised his scanning electron microscope as an improvised EBL machine. It's a common technique since SEM's contain a lot of the same components as your average EBL machine, just on a much smaller scale. Still, I don't imagine anyone else has used it as a Rickroll medium just yet. Of course, using a modded SEM means Tong is limited to using tiny wafers—nothing like the 300mm semiconductor wafers we see in large-scale manufacturing today—and the process is a lot slower. Although he explains that EBL machines are pretty slow themselves. As such, they're"mostly only seen in labs and other research institutions where you don't really care about the throughput of your process, you just want really fine resolution.
Resolution is one of the main hurdles Tong struggled with in testing. Underexposure and overexposure really mess with the fidelity of these nano-scale Rickrolls, and had been a huge issue in his earlier tests—overexposure being something I'm sure Mr. Astley is all too familiar with. Tong notes that"parts of the pattern expose really nicely and you get good, crisp lines, and then other parts get totally blown out and you don't have any definition at all.
United Kingdom Latest News, United Kingdom Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Secret plan to elect new PM if Boris died of Covid revealed by Matt HancockIt has been revealed that the government had a secret emergency plan to install a new leader in case Boris Johnson died of Covid-19. Matt Hancock wrote in his diary that cabinet ministers were going to make a ‘quick decision’ among themselves.
Read more »
Strictly fans blast bosses for 'mean' twist as Kym Marsh sent homeSTRICTLY Come Dancing fans have blasted show bosses for a “mean” twist during Kym Marsh’s farewell dance. The former Coronation Street actress, 46, and professional partner Grazia…
Read more »
Scotland's temperatures plunge to -8C as Arctic snow to blast country this weekForecasters say that temperatures overnight Wednesday into Thursday could drop to -7C or -8C - or even colder.
Read more »
Snow predicted to fall in NI this week as 'arctic blast' takes holdThe Met Office are predicting 'wintry showers' as temperatures plummet
Read more »
Stormont stalemate: Assembly recalled for fifth timeMembers will be asked to elect a Speaker, which the DUP has refused to do since May's election.
Read more »