![Unearthed: Unusual Silicon-on-Sapphire Chip in Ancient HP Floppy Disk Drive](/images/un/ea/unearthed-unusual-silicon-on-sapphire-chip-in-ancient-hp-floppy-disk-drive.webp)
Unearthed: Unusual Silicon-on-Sapphire Chip in Ancient HP Floppy Disk Drive
Ken Shirriff discovered an obsolete manufacturing technology while repairing an eight-inch HP floppy drive. The chip is unique and partly transparent.
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Ken Shirriff discovered an obsolete manufacturing technology while repairing an eight-inch HP floppy drive. The chip is unique and partly transparent.