PCB Design Workshop
www.pantechsolutions.net
*Disclaimer -Pantech is not associated with Orcad all the Logo are owned by the respective owners.
What you will Learn? –Week 1
Day 1- Introduction to PCB Design and Terminologies and
Installation of Orcad Trail version
Day 2 -Introduction to Schematic Capture( Creating a simple
project)
Day 3- Introduction to Allegro and Foot print Creation ( Creating a
simple project)
Day 4- Importing Schematics in allegro ,Placement and route (
Creating a simple project)
Day 5- Gerber Creation, BOM,PDF ( Creating a simple project)
Day 6- How to Design a 8051 Microcontroller Board
What you will Learn? –Week 2
Day 7- Library Creation-8051 Board
Day 8- Schematics Design-8051 Board
Day 9- Footprint Creation -8051 Board
Day 10- Design rules check-Import and Placement
Day 11- Layout
Day 12- Layout Design ,Gerber Creation, Recap,
schematic design consideration,Layout Design
Consideration
8051 Board Design
Key Features of 8051 Project Board
•Supports (Atmel | NXP | Dallas) MCU (SST89E516RD)
•2 No's of Tactile switch for interrupts study
•ISP Programming for NXP and Dallas MCU using USB
•4 No's of 10-Pin Expansion Connector
•4 No's of 20-Pin Expansion Connector
•On-Board 5V Regulator @ 1A and 3.3v @800mA
•Reset Circuit
•Power-on LED Indication
•40 pin ZIF socket for Microcontroller
•UART
About Pantech
Started in the Year 2004
Lab equipments and Sensor Interface
Manufacturer of Brainsense EEG Headset
Reconfigurable Algorithms on AI
Manufacture of AI development Boards
Power electronics, Fuel cell and Renewable Energy trainers
www.pantechsolutions.net
About me
https://www.linkedin.com/in/jeevarajan/
My Primary Expertise
Microcontroller Architecture: 8051,PIC,AVR,ARM,MSP430,PSOC3
DSP Architecture: Blackfin,C2000,C6000,21065L Sharc
FPGA: Spartan,Virtex,Cyclone
Image Processing Algorithms: Image/Scene Recognition, Machine Learning, Computer Vision,
Deep Learning, Pattern Recognition, Object Classification ,Image Retrieval, Image enhancement
and denoising.
Neural Networks : SVM,RBF,BPN
Cryptography :RSA,DES,3DES,Ellipti curve,Blowfish,Diffe Hellman www.pantechsolutions.net
Compilers: Keil,Visual DSP++,CCS, Xilinx Platform studio,ISE, Matlab, Open CV
Announcement
• Attendance Link at 9 pm
• Minimum attendance required for an Free-E-Certificate is 12 Days
+Project submission(Gerber or Schematics). Attendance link will be
valid for 1 hrs. after the event.
• For Internship Candidates no attendance required ,it will be accessed
from the LMS Portal. (learn.pantechsolutions.net)
• Recorded Video Streaming for LAB classes to improve Learning
Experience
• https://t.me/joinchat/PkU4n8P3E05iNzhl
Certificate of Internship at Rs 300
• What You get
• Recorded Video access for 6 Months
• Free Hackathon session on ZOOM for 2 Hrs(Create a simple 2 layer pcb)
• Prerequisites( Have to installed Orcad before the event)
Combo Offer
Combo 1 - PCB Design + Embedded System Design&Iot + FPGA =999
Rs(6 Months Validity)
Combo 2 - PCB Design + Embedded System Design&Iot + Arduino
=999 Rs(6 Months Validity)
Job Opportunities in Embedded System
design
PCB Design Challenge-12 Days
SKILL SET + MINDSET
Mindset Lesson
Have a Definite Goal
Pursue Your goal with a Positive Attitude
“The Strangest Secret in the world-Earl
Nightingale”
What is PCB
• A printed circuit board (PCB) mechanically supports and electrically
connects electronic components using conductive tracks, pads and
other features etched from one or more sheet layers of
copper laminated onto and/or between sheet layers of a non-
conductive substrate.
• Components are generally soldered onto the PCB to both electrically
connect and mechanically fasten them to it
Types of PCB’S
Single Layer PCB
Double Layer PCB
Multi Layer PCB
RIGID PCB
Flexible PCB
High frequency PCB
Aluminum Packed PCB
PCB LAYERS
• Substrate Layer
The substrate layer of any PCB is usually made from fibreglass, which gives the board its rigid form. Generally
speaking, the majority of boards will have this material for their substrate, with the exception of flexible PCBs, which
are built on flexible plastic such as Kapton. Substrate PCB layers can also be made with other materials such as epoxies,
however they lack the durability that FR4 (found in fibreglass) provides for a high quality board.
• Copper Layer
The thickness of the copper layer on your PCB will depend on the power the PCB needs to withstand.
• Solder mask layer
Once the copper layer has been applied the solder mask layer is placed on top. This gives the PCB its green
color and is used to insulate the copper layer to avoid any contact with any other metal or elements of the board that could
disrupt the copper traces.
• Silkscreen layer
The silkscreen is mainly for the purpose of us humans to help us better understand the board and the
functionality of different pins or LEDs, by adding letters, numbers and symbols to the board.
https://www.pcbpower.com/blog-detail/Printed-Circuit-Board-Layers
Multilayer PCB’s
Characteristics of PCB
• Through-hole technology
• Surface Mount Technology
• Circuit properties of the PCB
• Power and ground traces may need to be wider than signal traces.
• In a multi-layer board one entire layer may be mostly solid copper to act as a ground
plane for shielding and power return
• Materials
• FR-4
• Flexible
• Aluminium
• RoHS compliant PCB
• Copper thickness
Selection of packages
DIP QFP SOIC
PLCC BGA
PCB Specification Selection
https://www.pcbway.com/
PCB Specification Selection
https://www.pcbway.com/
PCB Trace width calculator
• https://www.digikey.in/en/resources/conversion-calculators/conversion-calculator-pcb-trace-width
• https://en.wikipedia.org/wiki/IPC_(electronics)
Types of Manufacturing Process
Subtractive
Additive
Semi-additive processes
Simple single layer PCB Manufacturing at
home
Rubbing away the top Place the printed side Using the permanent Iron the paper onto
Copper Clad Plates of the paper on the
oxide layer marker to sketch the PCB the plate
plate
Peeling the paper Light trace Darkening the trace Etching the plate Etched copper plate
Multilayer Manufacturing process
• Step 1 – The Design
• Step 2 – Printing the Design
• Step 3 – Creating the Substrate
• Step 4 – Printing the Inner Layers
• Step 5 – Ultraviolet Light
• Step 6 – Removing Unwanted Copper
• Step 7 – Inspection
• Step 8 – Laminating the Layers
• Step 9 – Pressing the Layers
• Step 10 – Drilling
• Step 11 – Plating
• Step 12 – Outer Layer Imaging
• Step 13 – Plating
• Step 14 – Etching
• Step 15 – Solder Mask Application
• Step 16 – Silkscreening
• Step 17 – Surface Finish
• Step 18 – Testing
Key Steps in PCB Design Process
Tools for PCB Design
Orcad Capture-CIS , Allegro
Altium
Pads (Power PCB)
SOLIDWORKS PCB
KiCad EDA
Ultiboard by National Instruments
DipTrace
• Eagle（Easily Applicable Graphical Layout Editor） ...
• EasyEda. ...
PCB Terminologies-What are PADS
PCB Terminologies-What are PADS
Surface mount pads
Pads used to mount surface mount components are called surface mount pads. These pads have the following
features:
1.Pad which shows the copper area. This can be rectangle, round, square, or oblong.
2.Solder mask layer
3.Solder paste
4.Pad number (number of pads present for the component)
What is Via Interconnect access ?
•a through via goes through all the layers. Depending on the cladding in the area where the via is drilled,
it may connect to all or just some of the internal layers;
•a blind via goes from the top or bottom layer through one or more layers but is not open at the far end.
Plating this via is difficult since a bubble can form at the bottom and prevent proper flow of the solder;
•a buried via connects only internal layers and has no direct access from the top or bottom of the finished
bo
What is Plated Vs Non Plated holes?
What is Silkscreen?
A silkscreen can provide the following information:
Polarity of parts
Location of parts through reference designators
Identify test points
Identification numbers unique to each board
What is Solder Mask
• Solder mask is a thin layer of polymer that is put on a circuit board to
protect the copper from oxidation and shorts during operation. It
also protects the PCB from environmental influences such as dust and
several other contaminants that may lead to shorts in the long run.
• It is due to the solder mask, which protects the copper circuits
printed on the fiber glass core to prevent short circuits, soldering
errors, etc. The color of the solder mask gives the board its
appearance.
What is Bill of materials (BOM)?
A bill of materials (BOM) is a comprehensive inventory of the raw
materials, assemblies, subassemblies, parts and components, as well as
the quantities of each, needed to manufacture a product.
Item No
Component Name
Description
Qty
Manufacturing Part no
Order code
Qty
Price
Type
No of soldering Pads
What is a Reference Designator?
• A reference designator unambiguously identifies a component within
an electrical schematic or on a printed circuit board. The reference
designator usually consists of one or two letters followed by a
number, e.g. R13, C1002
https://dexpcb.com/manual/standard-reference-designators.htm
What is Netlist ?
• The netlist contains the electrical connections between the
components on the circuit board, and is usually held in textual
format (see EDIF). In printed circuit board production a netlist
(generated from the production data) is used to carry out an electrical
test (E-test) to find incorrect or missing connections
Layers in Gerber
• Global Layer
• Top Layer
• Bottom Layer
• Silk screen Top
• Silk Screen Bottom
• Assembly TOP
• Assembly Bottom
• Inner Layer
• Drill layer
What is Artwork
Artwork is basically a manufacturing tool used in fabricating printed wiring because it uniquely defines the
pattern to be placed on the board. Artwork displays only those items that have to be generated as copper
patterns in the manufacture of the PCB. Therefore, the artwork will necessarily include solder pads, lands and
conductors true to scale in respect of their dimensions, but shown at the scaled level.
Downloading the TRIAL VERSION and
Installation Video
• https://www.orcad.com/orcad-academic-program
Raju.D.S |Sr.Technical Sales Engineer |
FTD Automation Private Limited, Bangalore-560095|
Tel: +91 (080) 42600900 |Mobile:8880907722/9538505552 |
Mail ID:rajuds@ftdautomation.com
www.ftdautomation.com
Today’s Assignment
• https://www.pcbpower.com/blog-detail/Printed-Circuit-Board-Layers
• https://www.pcbway.com/
• https://www.digikey.in/en/resources/conversion-
calculators/conversion-calculator-pcb-trace-width
Certificate of Internship at Rs 300
• What You get
• Recorded Video access for 6 Months
• Free Hackathon session on ZOOM for 2 Hrs(Create a simple 2 layer pcb)
• Prerequisites( Have to installed Orcad before the event)
Combo Offer
Combo 1 - PCB Design + Embedded System Design&Iot + FPGA =999
Rs(6 Months Validity)
Combo 2 - PCB Design + Embedded System Design&Iot + Arduino
=999 Rs(6 Months Validity)
Thank You
