Basics and Construction
- Single-Sided PCB Overview:
- ● Also known as: Single-layer PCB, one-layer PCB.
- ● Features: One copper layer on one side.
- ● Fundamental type of PCB used for simple electronic circuits and cost-effective
applications.
- Construction Process:
- ● Begins with a non-conductive substrate.
- ● Substrate provides mechanical support and insulation.
- ● Conductive layer formed by laminating thin copper onto substrate.
- ● Copper traces often covered by solder mask (protective substance), except for
soldering areas.
- Advantages
- ● A single-sided PCB, also known as a single-layer or one-layer PCB, contains
only one copper layer on one side.
- ● It is the simplest and most fundamental type of PCB, commonly used for
straightforward electronic circuits and cost-effective applications.
- ● The construction of a single-sided PCB starts with a non-conductive substrate,
typically made of fiberglass-reinforced epoxy known as FR-4, providing
mechanical support and insulation.
- ● The conductive layer is formed by laminating a thin copper sheet onto the
substrate.
- ● Copper traces on this layer are usually covered by a protective substance
called solder mask, leaving areas exposed for soldering.
Advantages, Preferences, and Constraints of Single-Sided PCBs
- Simplicity and
Affordability:
Single-sided PCBs offer key advantages in terms of simplicity and
affordability. The production process is streamlined compared to multilayer
PCBs, as it involves only one copper layer. This leads to fewer processes
and less need for sophisticated machinery.
- Preferred for Basic
Electronics: Single-sided PCBs are a popular choice for applications
involving basic electronic devices, consumer electronics, and low-volume
production. Their straightforward design contributes to reduced production
costs.
- Design
Limitations: The
single-layer design does impose limitations on circuit complexity and
density. With just one copper layer, there's limited space for routing
traces and placing components. Consequently, intricate circuits with
multiple components and complex connections are less suitable for
single-sided PCBs.
- Space
Constraints: Due to the
single-layer configuration, there can be challenges in accommodating
intricate layouts. This might result in larger board dimensions and less
efficient utilization of available space.