Bigger EUV photomasks and a fallen Brazilian armored vehicle king on Asianometry
Jon Y's semiconductor essay went past 120,000 views on its first day, and a business history of Brazil followed on Sunday.
AsianometryStory of Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.
EUV Photomasks Are Getting Bigger
"EUV Photomasks Are Getting Bigger" is exactly the kind of title that only Asianometry would put out: a video essay about the patterned plates that extreme ultraviolet lithography machines shine light through, and why the industry wants them larger. It went up Thursday and is the channel's busiest video right now, with close to 183,000 views.
The comment section is half engineering seminar and half running gag. One viewer works out that the optics in question are roughly the equivalent of a camera lens at f/1.5, and closer to f/0.9 for the newer high-NA machines. Others caught a quick nod to the Huygens Optics channel and a bit of animation from Branch Education, and plenty of people want a whole video on why inches still turn up in a field this precise. Someone at the 7:13 mark saw a captcha asking to select every square with a defect.
Sunday brought something completely different: "The Fall of Brazil's Armored Vehicle King," a business history of the kind the about text promises ("Sometimes about Asia, but not always"). It is only hours old. Behind the photomask video, two older essays keep moving, "High Bandwidth Flash Is Coming" and "The Dramatic Birth of the DVD Boom."
Views ran somewhat below the channel's usual pace, about 825,000 over the week, and subscribers inched up to 965,000. Among explainer and history channels of a similar size, hoser had the big week, while Asianometry sat right in the middle of the group.
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What viewers say
7:13 Captcha: Select all the squares with critical manufacturing defects.
@GunGryphonSee it on YouTubeI'd watch a (short) video on how imperial units came into the mix. It's an amusing mixture.
@grizwoldphantasia5005See it on YouTube7:20 Huygens Optics glass-ceramics video reference 😮😮😮😮
@Noah-s9i3vSee it on YouTube
Public comments from the video's page on YouTube
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The videos drawing views on Asianometry right now
- Channel
- Asianometry
- Subscribers
- 965,000 ▲ 1,000 this week
- Channel views, last 7 days
- 824,684
- Videos published this week
- 2
- Video published
- October 1, 2026
- Video views so far
- 182,908
- Views on its first day
- 122,855
The numbers
Here is how Asianometry's week looks in numbers.
💡 Test your knowledge
What does the "UV" in EUV lithography stand for?
EUV means extreme ultraviolet, light with a wavelength of 13.5 nanometers used to pattern advanced chips.
