The 5nm chip means that the width of the chip has many transistors, and the width of each transistor will be expressed in the manner of 5nm and 7nm. Technically, it's called \"manufacturing process.\" \"nm\" is a unit that means \"nanometer\" in Chinese. 1nm is equal to 0.0000001cm, and the width of 5nm is conceivable, so small that our naked eye may not be able to distinguish it. 1.5 nanometers is one ten-thousandth the size of a human hair. A human hair is about 60,000 nanometers, so 5 nanometers is almost one thousandth the size of a human hair.
Taking Qualcomm's 7nm Snapdragon 8cx chip area as an example, there are 532 cores on a 300mm diameter wafer, with a maximum of 22 cores in the horizontal direction and 36 cores in the vertical direction. Each chip is calculated to have an area of about 112 square millimeters (13.5 x 8.3 millimeters).
In fact, due to the simple structure and other factors, developers in each new generation of processes often use SRAM chips for testing. The result is that whoever makes the SRAM chip has a smaller core area, which means the more advanced the process technology.
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The previous record was Samsung's announcement at an international conference in February 2018 that the 6T 256Mb SRAM chip issued by the journal had an area of only 0.026mm. . However, the new generation 6T 256Mb SRAM chip developed by Amicco and Unisantis last week broke this record, with a core area of only 0.0184mm. To 0.0205mm? Compared to Samsung s SRAM, it is 24 percent smaller.