U61000 was the first 1-Mbit DRAM microchip produced in the German Democratic Republic by Zentrum Mikroelektronik Dresden in September 1988 based on CMOS technology.[1]
The first step in the project was to develop the chip, this was called U61000-1. After the design and technology were optimized, the U61000-2.1 was created. The final version for production was called U61000-2.2.[2]