TIL that a 12 inch semiconductor wafer costs $19000 to make and produces around 215000 RFID chips for use in disposable subway tickets. Each chips are around 0.5x0.5 mm in size

www.righto.com

TIL that a 12 inch semiconductor wafer costs $19000 to make and produces around 215000 RFID chips for use in disposable subway tickets. Each chips are around 0.5x0.5 mm in size

www.righto.com

Lemmit.Online botMAB to

Today I Learned (TIL)English · 1 month ago

Inside the tiny chip that powers Montreal subway tickets

www.righto.com

To use the Montreal subway (the Métro), you tap a paper ticket against the turnstile and it opens. The ticket works through a system called ...

This is an automated archive made by the Lemmit Bot.

The original was posted on /r/todayilearned by /u/zahrul3 on 2025-08-20 02:43:38+00:00.

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