HackerTube 中文?

Why It Was Almost Impossible to Make the Blue LED

VeritasiumYouTube ↗

Further reading 1

How much does a successful demonstration establish? →A program gives the expected output. Between “it did” and “it will” lie the test distribution, formal assumptions and deployment context. Those boundaries are easy to miss under pressure to ship.This video helps answer · Does the process work through the whole layer?

Caption notes

The blue LED required good gallium nitride crystals and magnesium-doped material that could supply holes. The film traces the obstruction to hydrogen and compares shallow electron-beam treatment with scalable heating.

Archived captions (transcription method unspecified) ↗
Original passages · 2
only made the surfaces of the samples p-type
Why It Was Almost Impossible to Make the Blue LED · ▶ 20:23–20:26
these hydrogen atoms were sneaking in and bonding with the magnesium
Why It Was Almost Impossible to Make the Blue LED · ▶ 20:45–20:51

Hacker News comments

View original on HN ↗