It consists of steps involved in the fabrication of chip ,types of vhdl code and it's utility and steps involved in PCB designing

1. B.Tech Industrial Training Presentation on
VLSI,VHDL and PCB Design
Presented by
RICHA BHARTI
20130707
E&C Engg. Dept., SMIT
Under the Supervision of
DR.SAGAR BOSE
TRAINING HEAD

2. CONTENTS
• Introduction
• Software used in VLSI Design
• VLSI Design Hierarchy
• Basic VHDL Code
• Programmable Logic Device (PLD)
• PCB
• Types Of Board
• History Of PCB
• Types Of PCB
• Steps Involved In PCB
• Sofware Used In PCB Designing
• Fabrication Process
• Application
1

3. INTRODUCTION TO VLSI,VHDLAND PCB
DESIGN
 Stands for Very Large Scale Integration.
 Process of creating integrated circuits by combining. thousands of
transistor- based circuits into a single chip.
 Design/Manufacturing of extremely small, complex circuit modified
semiconductor material.
 4.Language used for designing VLSI circuit
VHDL.
 printed circuit board can be shortly called as PCB.
 PCB is a non conductive substrate that mechanically supports and
electrically connects the electronic components using tracks, pads
and other features etched on a laminated copper sheet.

4. SOFTWARE USED IN VLSI
DSCH
 XILINX
ALTERA
MICROWIND

5. Software Used in VLSI Design (Contd.)
Use of DSCH -
Three types of designs:-
Gate Level Design
Chip Level Design
CMOS Level Design

6. . Software Used in VLSI Design (Contd.)

7. Design hierarachy
1. idea (need) 2. specifications 3. design archtecture 4. RTL coding
5. RTL
Verification
6. Synthesis7.Foundry8.IC Chip

8. 1.Ideas
85/95
Any thing we needs chip
•Microprocessor
•Microcontroller
•Memories
•Printer
•Mobile
•Digital security lock

9. 2.Specifications
This is the crucial step as it will affect the future of the product.
Here, vendors may want to get feedback from potential customers on
what they are looking for
•Instruction set
•Interface (I/O pins)
•Organization of the system
•Functionality of each unit in the system, and how to communicate it
to other units.

10. 3. Design Architecture
This is where the main work starts. With the help of
the specification sheet the target IC’s architecture is decided and a
layout for same is created by design engineers using EDA tools.

11. 4. RTL coding
• This implies that the VHDL/VERILOG code written based
on the architecture describes how data is transformed as it is
passed from register to register.
• RTL coding tool
• Xilinx
• Vim
• Emacs
• HDL Turbo Writer

12. Double-sided PCB
Multilayer PCB
PCB
Multilayer PCB
RTL VERIFICATION WAVEFORM

13. Double-sided PCB
Multilayer PCB
BThis is where the design now start to get physical.
Logic synthesis is a process by which the desired circuit
behavior i.e. Register Transistor Level is turned into a
design in terms of logic gates which drives the circuit or
architecture.
6. synthesis

14. Double-sided PCB
Multilayer PCB
PCB
Multilayer PCB
FPGA KIT
Field programmable gate array (FPGA)
• It is a IC which can be be programmable by user to
capture the logic.
•Capable to capturing 100,000 designed gates.

15. Double-sided PCB
Multilayer PCB
PCB
Multilayer PCB
7.Foundry
The design is sent for Fabrication for mass production
to foundry .

16. Double-sided PCB
Multilayer PCB
PCB
Multilayer PCB
8.IC Chip

17. Application of VLSI

18. Basic VHDL Code (Contd.)
Types of VHDLArchitecture
Data flow:-
-It uses concurrent signal assignment statement.
- It describes the transfer of data from input to output
signals.
Behavioral:-
- It is a high level description
- It contains a set of assignment statement to represent
behaviour.
Structural:-
- Describe the circuit structure in terms of logic gates
- Interconnects wiring between logic gates to form a circuit net
list.

19. Double-sided PCB
Multilayer PCB
PCB
Multilayer PCB
Types of PCBs:-
1.Single Sided PCB
2.Doulbe Sided PCB
3.Multilayer PCB

20. Steps involved in PCB Designing
.
1.Part research and selection.
2.Schematic capture and simulation
3.Board layout
4.fabrication

21. Computer Aided Design
1.Proteus
2.Orcad
3.Eagle
4.utilboard
.

22. Fabrication Process
1.schematic preparation
2.Layout prepartion
3.Etching process
4.Drilling
5.Solder masking
6.Silk screen
7.Electrical testing

23. Application

24. Acknowledgement
I have taken efforts in this project. However, it would not have been possible
without the kind support and help of many individuals and organizations. I would
like to extend my sincere thanks to all of them.
I am highly indebted to DR.SAGAR BOSE for their guidance and constant
supervision as well as for providing necessary information regarding the project &
also for their support in completing the project.
I would like to express my gratitude towards my parents & member of
HEWLETT PACKARD for their kind co-operation and encouragement which
help me in completion of this project.
I would like to express my special gratitude and thanks to industry persons for
giving me such attention and time.
My thanks and appreciations also go to my colleague in developing the project and
people who have willingly helped me out with their abilities.

25. 1.Student Reference Guide on 'VLSI, VHDL
AND PCB DESIGN' by hp education
academia program
2.Search Engines such as Google Chrome
References