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