It is almost like looking at an X-ray of the chip.After completing the verification work for the 4004 microprocessor, I yearned to simulate a completemicrocomputer set (CPU, ROMs and RAMs) at the transistor level. The Intel 4004 microprocessor is unique in that it is one of the smallest microprocessor designs that ever went into commercial production.You can also try the quick links below to see results for most popular searches.You can easily search the entire Intel.com site in several ways.Its invention, introduction, and lasting influenceRelive the Intel journey that started in 1968.Click here to access the My Intel Dashboard from any Intel.com page. To get me started, Tim sent me two high resolutionphotomicrographs of the Intel 4001 ROM, one of the unmodified chip, and one of the chip with themetal-layer etched away, revealing the transistors. Intel's November 15, 1971 product announcement in Electronic News Complete Artwork, Schematics, and Simulator for Intel MCS-4 (4004 family) microprocessor chip-set: "Together again after 38 years!" For example, I never knew what the "status characters" in the data RAM chips were for. Forthe sake of project completeness, this is what I did.Newly released materials (and quick links):Finally I got to the point where both netlist sources were equivalent except for the"bootstrap loads." The Intel solution. Intel engineers suggested a family of just four chips, including one that could be programmed for use in a variety of products, setting in motion an engineering feat that dramatically altered the course of electronics.The Intel® 4004 microprocessor circuit line width was 10 microns, or 10,000 nanometers. They seem to be general purpose, though. It was not as monumental a task as I thought atfirst, thanks to Federico Faggin's original design methodology, the schematic and layout were quiteclose to each other. By comparison, an average human hair is 100,000 nanometers wide.This revolutionary microprocessor, the size of a little fingernail, delivered the same computing power as the first electronic computer built in 1946, which filled an entire room.From purified silicon to technology that powers your everyday life, discover the making of silicon chips—the most complex devices ever manufactured.Meet Intel's co-founder and see how his bold prediction set the pace for ongoing innovation.Biography and historical still collection of Robert Noyce, inventor of the first practical microchip.The first Intel® 4004 microprocessor was produced on two-inch wafers compared to the 12-inch wafers commonly used for today's products. At first only the individual chips were simulated separately by generating the necessarytest patterns for the external pins of RAM/ROM (which required a clock-cycle level accuratesimulator of Intel 4004 CPU too). A JavaScript emulator assembler disassembler for the Intel 4004 CPU Then I implemented acomponent/circuit recognition algorithm, and in parallel I refined the schematics to make them moreclear to the software. Tim McNerney created them using Photoshop bylayering a transparent photo of the original chip with a photo of thechip that has had its metal layer etched away using hydrofluoric acid(a really dangerous chemical--don't try this at home!). By combiningthe etched and unetched photos in this way, you can see the metalwires and the transistors together in the same image. Today, the circuit features of Intel® microprocessors range between 45 and 32 nanometers.