The facts revealed: even with an EUV lithography machine, it is impossible to make 7nm chips.
It is known that following the United States and Japan, the Netherlands also began to ban semiconductor equipment technology.
An analysis of this ban in the Netherlands shows that it is basically the same as the previous measures of the United States, that is, the blockade of all equipment with 14nm and below processes.
However, in terms of immersion lithography machines, there is still a mouth, which is not all prohibited, that is, the immersion lithography machine of NXT:1800DI does not belong to the scope of control and can still be exported.
According to **, this NXT:1800DI lithography technology uses a wavelength of 193nm, a resolution of 38nm, and a numerical aperture of 135Na's multi-** technology can achieve up to 7nm process, which is ahead of TSMC's first-generation 7nm process based on this lithography technology.
Many netizens said that it seems that we still have hope, and the 7nm process will not be blocked immediately, which may also be an opportunity for the Netherlands.
However, the idea of netizens is very good, but the reality is too skinny, for the current Chinese chip industry, it is not very realistic to enter the 7nm process, not to mention that with this NXT: 1800DI lithography machine, even if you buy EUV lithography machine, you can't make 7nm chips.
The use of NXT:1800DI lithography technology requires multiple times**, and there are currently three multiple** technologies, namely LELE, LFLE, and SADP, but either one, they have very high technical requirements for engraving, deposition, and other processes, and at the same time the cost is 2-3 times higher, which obviously does not apply to us.
What's more, chip manufacturing requires not only the precision of lithography machines, but also other equipment and materials to achieve advanced technology. Because the chip from silicon wafer to finished chip requires dozens of equipment and hundreds of processes.
To put it simply, diffusion, thin film deposition, lithography, engraving, ion implantation, CMP polishing, metallization and other equipment must meet the requirements of the 7nm process in order to realize the 7nm process, just as photosensitizers, targets, etc. must also support the 7nm process.
Most of these equipment and materials produced in-house are still at the level of 28 nanometers, 14 nanometers and even 40 nanometers, and most of them need to be imported to achieve 7 nanometer technology, but at present, the import of equipment and technology for advanced technology is basically in a state of stagnation.
National Semiconductor Equipment.
Therefore, it is neither black nor blown, relying on the imported NXT:1800DI lithography machine, it is impossible to reach 7nm in a short time, and even if ASML is open to purchase, even if we buy EUV lithography machine, we do not need to use many times ** technology to manufacture 7nm chips, and we can also produce 7nm chips, because other equipment and materials are also stuck.
To be honest, we can't expect the Netherlands to lift restrictions and let us buy EUV lithography machines, but we can expect a breakthrough in the national ** chain.
Only when the national ** chain is fully promoted, from lithography machines to various semiconductor equipment and various semiconductor materials, all realize the 7nm process, is the real worry-free, otherwise everything is a farce and a death knell, what do you think?