what is vlsi techniqes

hello

VLSI engineer design chip using VHDL techniques

small scale integrations-logic gates
medium scale integrations-encoder,multiplexer
vary large scale integrations-memory,processor

design hardware of processor vhdl language is use

how logic gates, multiplexers are design
can i use vlsi techniques to design gates ,encoder
which language is used for design gates ,multiplexer

Gates and multiplexers are relatively small-scale devices so VLSI design techniques are unlikely to be appropriate. A good knowledge of Boolean logic and basic semiconductor circuits would be useful though.