1, under the same chip area, 7nm has more transistors. Therefore, compared with 14nm chip and 7nm chip, the number of transistors is a lot less, in fact, the area of 14nm chip and 7nm chip is not very large, so the former number of transistors is a lot less, in terms of performance and power consumption will be worse. The most typical example of a 14nm versus 7nm chip is a SnapperDragon 821 and Snapdragon 855.
2, manufacturing process The biggest difference between 14nm chips and 7nm chips is their manufacturing process. The 14nm chip uses the traditional FinFET process, while the 7nm chip uses the new EUV (extreme ultraviolet lithography) process. The EUV process can be manufactured using shorter wavelengths, allowing smaller chips to be made. Because the 7nm chip uses a more advanced EUV process, its volume is much smaller than that of the 14nm chip.
3, on the other hand, 14nm (nanometer) and 7nm (nanometer)The difference between 7nm and 14nm of the 14nm chip indicates that the difference between 7nm and 14nm chip of the mobile phone chip under the same process chip is much different than the performance of the computer chip. TSMC's mobile phone chip is 7 nanometers but equivalent to Intel's PC chip 14 nanometers, indicating that mobile phone chips under the same process, the performance of computer chips is very different.
Why does the chip process of the mobile phone have to be 7nm, because the mobile phone has a smaller screen, so it is on the CPUThe level of accuracy is higher, and the computer has a larger screen, so the accuracy requirements are not as high as the chip of the phone. And the mobile phone chip 7nm is actually a kind of customary measurement of business marketing, and the computer is 14nm is not a thing.
Because Intel's own 7nm chip production line has not yet, at present, its most advanced is 10nm, AMD's processor has 7nm, when it is used, TSMC foundry production line, the world is also TSMC and Samsung have 7nm production line, but TSMC has more advanced 5nm.
nanometersThe number is nm) is a unit of length, originally called nanometers, that is, 10^-9 meters (1 billionth of a meter), now Intel's CPU mainstream is 14 nm technology, the latest is 10 nm, the smaller it represents the higher the technical content, the more integrated microelectronics components of the same size, the performance is correspondingly better, and the power consumption is correspondingly reduced.
Because after the core technology came out a few years ago, Intel's computer chip advantage is too strong, there is no competitor, every time it is like squeezing toothpaste to improve CPU performance although intel is the best in 14nm, but the opponent has openedStarted to 7nm force intel 10nm is not mature.First of all, we must understand what the smaller process means The difference between 7nm and 14nm chips : the improvement of performance, the reduction of power consumption, the reduction of heat output. The principle can be said in one sentence: imagine the chip bottom plate as a drawing board, the chip process is equivalent to the fineness of the paintbrush, 14nm is equivalent to painting with crayons, and 7nm is the use of fine brush in painting, the content of the drawing board is the performance of the chip.
1, the nanoscale division of the chip includes 3nm, 5nm, 7nm, 14nm and so on. Among them, the difference between the chip 7nm and 14nm , the nano level refers to the gate length of the CMOS device chip 7nm and 14nm difference , that is, the minimum wiring width or processing size. Globally, TSMC and Samsung's 3nm process technology is more advanced, but the current yield of Samsung's 3nm is only 10-20%. The most advanced process technology in our countryIt's SMIC 14nm.
2, chip nm grade division: 3nm chip, 5nm chip, 7nm chip, 14nm chip and so on. A chip is the difference between the transistors needed for a circuit and its chip 7nm and 14nm other devices made on a semiconductor (from Jeff Dahmer). Chip is the carrier of integrated circuit. Here, nm actually refers to the gate length of the CMOS device, which can also be understood as the minimum wiring width or minimum processing size.
3, nm, 5nm, 7nm process refers toIt is the nanoscale process technology used to make chips. Among them, 3nm, 5nm, 7nm represent the width of the transistor gate in chip manufacturing, which directly affects the difference between 7nm and 14nm chip performance, power consumption and integration. The importance of the nano process The key is that it determines the difference between the chip 7nm and 14nm the chip's ability to process data and stability.
4, chip 3nm, 5nm, 7nm refers to the use of 3A chip of nm, 5nm, 7nm process, nm is naturally short for length unit nanometer. Simply speaking, x nm refers to the gate width of the complementary oxide-metal semiconductor field effect transistor formed on the CPU, also known as the gate length.
5, chip process process, such as 14nm, 10nm, 7nm, 5nm, refers to the size of the transistor gate circuit. The process is advanced, the transistor size is small, the chip of the same size can accommodate a large number of transistors, and the performance is enhanced.
6, the nm process is the next generation of 28nm process. 14The basic unit of the transistor in the nm process is 14nm multiplied by 14nm. Compared to 28nm, 14nm process transistor size is smaller, making chip design and manufacturing more complex, but also brings higher performance and lower power consumption. The 7nm process is the next generation of the 14nm process. The basic unit of a transistor is 7nm multiplied by 7nm.