I wish to know at overall how to make a microprocessor chip, like Intel or TSMC or Samsung does.
Developing a microprocessor chip like Intel, TSMC, or Samsung involves a complex and multi-stage process that requires significant resources and expertise. Here is a general overview of the steps involved:

1. Architecture design: The first step is to determine the architecture of the microprocessor. This involves designing the instruction set architecture (ISA), which specifies the commands that the processor can execute.
2. Logic design: The next step is to design the logic of the processor, which involves creating a circuit diagram of the processor and determining the function of each individual circuit.
3. Verification and testing: After the logic design is complete, the design is verified and tested to ensure that it meets the desired functionality.
4. Physical design: Once the logic design is verified, the physical design of the chip can begin. This involves placing and routing the circuits on the chip and designing the interconnects.
5. Mask creation: After the physical design is complete, a mask is created, which is a template that is used to create the chip. The mask is created using specialized software and is used to transfer the chip design onto silicon wafers.
6. Wafer fabrication: The mask is then used to create multiple copies of the chip on silicon wafers. This involves a complex process that includes deposition, lithography, etching, and doping.
7. Packaging and testing: After the chips are fabricated, they are packaged and tested to ensure that they meet the desired specifications. This involves a series of tests that are designed to check the functionality of the chip under various conditions.
And can you advise on the US equivalents, what their nm scale is down to now, and a comparison of US v South Korean vs Japanese microchip industries. Thanks.
Sure, I can provide some information on the current state of microprocessor technology and the comparison between US, South Korean, and Japanese microchip industries.

In terms of process node technology, the leading edge of microprocessor fabrication is currently at 5 nanometers (nm), with both TSMC and Samsung offering chips at this node. Intel, which is based in the US, is lagging behind in this area and has only recently started production of its first 10nm chips.

In terms of market share, the US, South Korea, and Japan are all major players in the global microchip industry. The US is home to companies like Intel and AMD, which are major players in the CPU market. South Korea is dominated by Samsung and SK Hynix, which are major players in the memory and storage market. Japan is home to companies like Toshiba and Renesas, which are major players in the automotive and industrial markets.

In terms of technology and innovation, the US and Japan have a long history of pioneering advancements in the microchip industry, while South Korea has emerged as a major player in recent years with a strong focus on memory and storage technology.