This page has more information on how to look inside old integrated circuits.
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| Die photograph of the 8008 microprocessor |
Chips I've investigated include the 74181 ALU, 8008 microprocessor, Intel 1405 shift register memory, counterfeit RAM chip, 741 op amp, Z80, 555 timer, Intel 3101 RAM,
76477 sound effect chip, Intel 8087 FPU, ARM1 processor, TL084 op amp, 6502, RFID chip, TL431, 7805 voltage regulator, TMX 1795.
I've also written about how to create a high-resolution die photo by tiling images using Hugin.
Some good sources for die photos are https://zeptobars.com/en/, Siliconpr0n, Visual 6502, and Project 54/74.
Robert Baruch's Polychip can be used to analyze chips (video).
The book Designing Analog Chips (free PDF) is an interesting discussion by the designer of the 555. Other books I've found helpful for understanding old ICs include VLSI Design Techniques for Analog and Digital Circuits, Introduction to VLSI Systems (Mead and Conway), The Architecture of Microprocessors
Robert Baruch's Polychip can be used to analyze chips (video).
The book Designing Analog Chips (free PDF) is an interesting discussion by the designer of the 555. Other books I've found helpful for understanding old ICs include VLSI Design Techniques for Analog and Digital Circuits, Introduction to VLSI Systems (Mead and Conway), The Architecture of Microprocessors
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