pcb manufacturing
Printed Ckt Board
Types of PCB
(I)
Single Side (II)
Double Side (III)
Multi Layer
(V)
Flexible PCB
*
Single Side ( 1 layer ) :- The insulating substrate contains ckt pattern on
only one side. Which is called as solder side. The other side is called component side.
*
Double Side (2 layer) :- Double side means the ckt pattern is present on
the either side of the insulating material ckt pattern both on component side & solder side.
*
Flexible Cards
:-
Flexible boards are similar to rigid boards except the board are made from a flexible substrate material. The base materials are very thin and the common thickness is 0.1mm.
*
Multi layer Board (MLB, 4L,6L,8L,12L,16L ) :
:The ckt density is high compare to D/S for inner layer made of special laminate is used for bonding purpose ( Prepreg). The inner layer is etched “CU” and outer layer is Non- etched ckt. After lamination or pressing the boards are drilled and plated like PTH D/S.
Process Flow chart for Single Side P.C.B.
Sheet Cutting
Film master preparation
Screen Preparation
Drying
Screen Printing
Board cleaning
Retouching
Etching
Legend Printing
Roller Tinning or HAL
Final Cutting
Q.C.
Drilling
Ink Stripping
Masking
Process Flow Chart of Double Side P.C.B.
Sheet Cutting
Film Master Preparation
CNC Drilling
Photo Printing
PTH or Electroplating
Board Cleaning
Pattern Plating or Electro Plating
H.A.L.
Green Masking
Legend Printing
Final Cutting
Dry film Stripping
Etching
Tin Stripping
Q.C.
Mechanical Operation
* Sheet Cutting :-
Measure the size of PCB from film or
Artwork.
L
W
Panel Sz.
* Board Area
PCB Sz.
Boarder Area
* Laminates or Copper Sheet :1. Glass Epoxy 2. Paper fenolic 3.Teflon 4. Ceramick (CEM)
* Glass Epoxy :-
Thickness
S/S
1.6 35/0
Cu Thickness
Insulating Material thickness D/S
0.8-18/18
1.6-18/18
Types of PCB
(I)
Single Side (II)
Double Side (III)
Multi Layer
(V)
Flexible PCB
*
Single Side ( 1 layer ) :- The insulating substrate contains ckt pattern on
only one side. Which is called as solder side. The other side is called component side.
*
Double Side (2 layer) :- Double side means the ckt pattern is present on
the either side of the insulating material ckt pattern both on component side & solder side.
*
Flexible Cards
:-
Flexible boards are similar to rigid boards except the board are made from a flexible substrate material. The base materials are very thin and the common thickness is 0.1mm.
*
Multi layer Board (MLB, 4L,6L,8L,12L,16L ) :
:The ckt density is high compare to D/S for inner layer made of special laminate is used for bonding purpose ( Prepreg). The inner layer is etched “CU” and outer layer is Non- etched ckt. After lamination or pressing the boards are drilled and plated like PTH D/S.
Process Flow chart for Single Side P.C.B.
Sheet Cutting
Film master preparation
Screen Preparation
Drying
Screen Printing
Board cleaning
Retouching
Etching
Legend Printing
Roller Tinning or HAL
Final Cutting
Q.C.
Drilling
Ink Stripping
Masking
Process Flow Chart of Double Side P.C.B.
Sheet Cutting
Film Master Preparation
CNC Drilling
Photo Printing
PTH or Electroplating
Board Cleaning
Pattern Plating or Electro Plating
H.A.L.
Green Masking
Legend Printing
Final Cutting
Dry film Stripping
Etching
Tin Stripping
Q.C.
Mechanical Operation
* Sheet Cutting :-
Measure the size of PCB from film or
Artwork.
L
W
Panel Sz.
* Board Area
PCB Sz.
Boarder Area
* Laminates or Copper Sheet :1. Glass Epoxy 2. Paper fenolic 3.Teflon 4. Ceramick (CEM)
* Glass Epoxy :-
Thickness
S/S
1.6 35/0
Cu Thickness
Insulating Material thickness D/S
0.8-18/18
1.6-18/18