PCB board size

PCB board size

There are various factors that influence the PCB board size. These factors include materials used, design factors, and the required PCB board surface. GWT is one of the reputed manufacturers of single, double, and multilayered PCB boards. We provide PCB boards in various sizes.

GWT conventional PCB Board Size Capabilities

The following capabilities help us serve our clients across various industries.Please kindly be noted that we do the large size PCB manufacturing,below size capabilities only relate to the conventional PCB board manufacturing.

The PCB board size and layout will take a big part of the manufacturing cost consistant. Hence, we take the following factors into consideration while determining a board size.

1.The board size should be larger than the available area.

2.We maintain the tolerance value of ±3mil during the manufacturing. This value is taken into consideration while deciding the board size.

3.Type of enclosure is another factor that we emphasize on while deciding the board size.

In case the customer does not mention the board size, we take the decision by considering a standard board size + area required for mounting components + area required for traces. The number of traces and the number of layers are balanced to avoid conflicts.

How to Choose a PCB Board Size

Almost every device has PCB boards there. However, not every device has the same size. For example, a smartphone needs a very small PCB as compare to televisions. In the same vein, a television needs a smaller PCB as compared to heavy machinery. Therefore, these sizes play a crucial part in the circuit. A designer must have to design the PCB board according to the device size. So,we will explore how to choose the size of these electronic printed circuit boards.

PCB Sizes

Initially, PCB boards were made out by using a sheet of plywood which works as a breadboard. The standard thickness of the single-ply in that plywood is 1/16 or 1.57mm. There are no specific or particular reasons for this size. Other sizes incorporate 2.36 mm and 3.18 mm. Since we know the different types of PCB that are single, double, and multilayer. Today the thickness is from 0.008 to 0.240 inches

The popular and common panel sizes are 18″×24″, 18″ ×12″, 9″ ×24″, and 9″ ×12″. Panel size reduces the number of boards produced per panel. The PCB size includes:

--Shapes

PCB boards have several kinds of shapes. From circles to rectangles. From star square, many shapes are available. Hence, these shapes can help in reducing the size of the circuit. Tab routing or V-score has been used o cut the shapes.

--Thickness

Thickness can affect the device size and cost. And the number of layers determines the thickness. For example, the six layer board require least thickness of 0.031″

--Calculation of Size of your PCB

The size usually depends on the components in the PCB circuit. That how densely it is added with how many vias or connectors. Follow the given instruction to calculate the size of the PCB board.

Open the layout design in the software. The layout would show an outline with components. Take the components according to your circuit diagram.

Increase or decrease the size of the PCB outline after placing the components. Leave a minimum of half an inch of the area around the edges of the circuit

Measure the size. Multiply that size with vertical and horizontal lines of the box to get the size of PCB board.

Factors For Choosing a Correct Size

There is a number of to consider while making the choice of size .Remember the following mentioned factors while choosing the size:

1.Weight: See the weight of the device for which you’re making the circuit. Don’t use a thinner board unless it got necessary for the required applications. Because the thinner board can get break easily

2.Flexibility: Thick boards are heavier and less flexible. Thin boards are more flexible. However, they can easily get break. Use the board according to your required circuit. For instance, smart watches may need a flexible circuit while computer mother board needs a thick board.