The development of the technology industry is growing rapidly, more and more companies are developing electronic products, the market demands technological consumption, in many aspects such as automation, communications, smartphone, nanotechnology, renewable energy, among others; This basically leads to the growth of electronic designs (PCB), since they are the basis of the operation of the technologies that we know today, but on what standards are electronic designs ruled?
There are several standards worldwide for PCB designs, the most widely used is the IPC standards, (an association that connects the electronic industries) which is a guiding tool that teaches us the best practices of design, manufacture, assembly, and inspection of printed circuits boards or (PCB), as well as in the connection stage, such as cables, connectors, welding supplies, connection tests between tracks, the good design of the footprints of each electronic components.
This applies to both SMD surface components and THROHOLE through holes; The main objective of using these standards, allows us to understand each other in the same language or it can be said that the standards are used so that every time a printed design is made with characteristics embodied in the PCB, the company in charge of the design can understand what that is required for such a design.
Figure 1: IPC standards. Source: https://www.pexels.com/photo/green-circuit-board-343457/ – https://smtnet.com/media/images/IPC_A610F.jpg
The IPC standards are classified by areas not stages within the design of a PCB, among them, we will name 3 basic standards that rule a PCB.
• IPC-2221: It is the generic standard on printed board design, this standard classifies the types of designs by classes based on said application:
1. Class1: refers to consumer electronics as an example a dimmer, a DC source.
2. Class2: dedicated, for example, a control stage, telemetry, etc.
3. Class3: They are those of high reliability, where life is presented as human beings, electronics in bioengineering.
Within this standard, the number of layers, thermal dissipation, types of roads, basic rules for the design of tracks, among others, are defined.
• IPC-2222: Sectional design standard for rigid organic boards.
It is very important to highlight that, within the development of PCB design, all these rules of international standards must be handled if professional results are to be obtained, within the industrial area since the reliability of each product or technology developed is at stake, which the end ends up in the hands of the users or clients, that is why the great importance of impregnating these standards in our PCB designs.
Danilo Ortega – Electronic Engineer