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  1. 1. ST Microsystem A presentation on VLSI DESIGNSubmitted to:- Presented by:-Pieush Vyas Rahul VermaHOD ec dept. EC -B
  2. 2.  ST Microsystems is a software and VLSI design training center located in the IT-zone at Sitapura industrial area, Jaipur. It was established in 2001 and is the first VLSI design center in Rajasthan in private sector. The company has registered its presence in training sector through its high quality and expert training in emerging technologies. Keeping in view the importance that IT has gained in recent years and small number of institutes providing the industry level training in the area, ST Microsystems provides training in major key areas like VLSI, software design and development, embedded systems, SAP etc.
  3. 3. Upto the 60’s the electronic circuit were bulky and slow . Atthat time , electronic circuit consisted of various discretecomponent like bipolar junction transistor (BJT),resistance ,capacitance etc , to make the inter connection betweenthese discrete component use copper wire .These kind of circuit known as “Discrete circuit”.Thesecircuit consist very less component occupied very largespace
  5. 5. What is Integrated Circuit?Integrated Circuits contains several transistorsfabricated on a single chip.
  6. 6. •“Jack kilby” the person who develop first integratedcircuit ,he is known as the father of ic.•This integrated circuit consist one resistor and onecapacitor.•Germanium was used to make first ic.•In 1947 Schokly and barlin invented bipolar junctiontransistor and ic,s were formed using BJT.In 1960 mosinvented and ic formed by using MOS
  7. 7.  SSI (small-scale integration): Up to 100 electronic components per chip MSI (medium-scale integration): From 100 to 3,000 electronic components per chip LSI (large-scale integration): From 3,000 to 100,000 electronic components per chip VLSI (very large-scale integration): From 100,000 to 1,000,000 electronic components per chip ULSI (ultra large-scale integration): More than 1 million electronic components per chip
  8. 8. • In 1965, Gordon Moore predicted that the number of transistors that can be integrated on a die would double every 18 to 14 months • i.e., grow exponentially with time• Amazing visionary – million transistor/chip barrier was crossed in the 1980’s. – 2300 transistors, 1 MHz clock (Intel 4004) - 1971 – 42 Million, 2 GHz clock (Intel P4) - 2001 – 140 Million transistor (HP PA-8500)
  9. 9.  VLSI is an implementation technology for electronic circuitry - analogue or digital It is concerned with forming a pattern of interconnected switches and gates on the surface of a crystal of semiconductor Microprocessors  personal computers  microcontrollers Memory - DRAM / SRAM Special Purpose Processors - ASICS (CD players, DSP applications) Optical Switches Has made highly sophisticated control systems mass-producable and therefore cheap
  10. 10.  VHDL is the VHSIC Hardware Description language designed and optimized for digital circuit design and modeling. describes the structural, physical and behavioral characteristics of digital systems.
  11. 11.  V Very High Speed Integrated Circuit H Hardware D Description L Language Interoperability between design tools: standardized portable model of electronic systems Technology independent description Reuse of components described in VHDL
  12. 12.  Used to describe hardware . Application specific language. Used for digital circuits’ programming & simulation.
  14. 14. library IEEE;use IEEE.STD_LOGIC_1164.ALL;entity andgate is Port ( a : in std_logic; b : in std_logic; y : out std_logic);end andgate; architecture Behavioral of andgate is begin y <= a and b; end Behavioral;
  15. 15.  Vlsi is suitabale for fabrication of larger number of components on a single chip. Vhdl is used for digital circuit designing and to validate the design and check the design specification.
  16. 16.  www.xilinx tutorial.com. Google images. Vlsi design by Genus Publications.
  17. 17. QUARRYS???