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alted | 4 years ago
- hard drive read/write heads (the platters are debatable)
- inkjet printer nozzles (this is why making a DIY inkjet printer is nontrivial)
- air pressure sensors (e.g., for car tires)
- precise frequency filters for smartphone wireless communication
- oscillators (https://news.ycombinator.com/item?id=18340693)
- very tiny microphones for smartphones (speakers are harder)
- Digital Micromirror Devices (DMDs): arrays of tiny mirrors used in most projectors
- microfluidics ("lab-on-a-chip" stuff for fast disease testing, DNA sequencing, cell manipulation, etc)
And a couple other semiconductor applications:
- LCD/LED screens (monitors, phones, laptops, etc) (these are made on a glass surface instead of a silicon wafer but use the same basic manufacturing techniques)
- laser diodes (laser pointers, CD / Blu-ray players)
- many quantum computers
user_7832|4 years ago