Inside a Counterfeit 8086 Processor

Inside a Counterfeit 8086 Processor
by Ken Shirriff on 08-19-2020 at 2:00 pm

Fake Intel 8086 CPU

Intel introduced the 8086 processor in 1978, leading to the x86 architecture in use today. I’m currently reverse-engineering the circuitry of the 8086 so I’ve been purchasing vintage 8086 chips off eBay. One chip I received is shown below. From the outside, it looks like a typical Intel 8086.

The package of the fake
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Die shrink: How Intel scaled down the 8086 processor

Die shrink: How Intel scaled down the 8086 processor
by Ken Shirriff on 07-22-2020 at 2:00 pm

Intel 8086 Comparison

The revolutionary Intel 8086 microprocessor was introduced 42 years ago this month so I’ve been studying its die.1 I came across two 8086 dies with different sizes, which reveal details of how a die shrink works. The concept of a die shrink is that as technology improved, a manufacturer could shrink the silicon die, reducing… Read More