First of all, PCBs, as printed circuit boards, primarily provide the interconnection between electronic components. Color is not directly related to performance, and differences in pigmentation do not affect electrical properties. the performance of a PCB is determined by the materials used (high Q), wiring design, and several layers of the board. However, in the…
01, What is the 20H principle? The 20H principle refers to the 20H distance of the power layer relative to the ground layer inward, with H indicating the distance between the power layer and the ground layer. And of course to suppress the edge radiation effect. At the edge of the board will radiate electromagnetic…
High density interconnect PCBs are a way to leave more space on a printed circuit board to increase efficiency and speed up transfer speeds. It’s relatively easy for most aggressive companies using printed circuit boards to understand how this will benefit them. High Density Interconnect HDI PCBs represent one of the fastest growing segments of the…
This article lists a variety of different design oversights, explores the causes of circuit failure for each, and gives suggestions on how to avoid these design flaws. This article uses a double layer PCB with FR-4 dielectric, 0.0625in thickness, and a grounded bottom layer of the board as an example. The operating frequency is in…
In general, the following factors affect the characteristic impedance of a PCB: dielectric thickness H, copper thickness T, width of the alignment W, spacing of the alignment, dielectric constant Er of the material selected for the stack, and thickness of the solder resist. In general, the higher the dielectric thickness and line spacing the higher…
With the addition of PCB alignment express, EMC design is something we electronic engineers have to consider. When faced with a design, there are 5 important attributes to consider when performing an EMC analysis of a product and design: (1) Critical device size: the physical size of the emitting device that produces the radiation.…
When designing a PCB, we have to think through several issues Single-layer or double-layer board? Is it all inline or inline plus SMD? Does the factory support the red glue process? Converted to a real problem, it is the mainstream design production solution Choice one all-straight plug-in, single panel cost analysis: manual plug-in, one wave…
In the manufacturing industry, do designers need to check the design results after they have designed the PCB? The answer is yes, and there is more than one way to check. The first is the DRC check, also known as Design Rule Check, which is used in PCB design software (EDA) to check and discover…
I. PCB concept PCB (Printed Circuit Board), the Chinese name for printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support body for electronic components, and a provider of electrical connections for electronic components. It is also known as a “Printed” circuit board, as it is made using…
First, what is over-hole Through-hole (via) is one of the important components of multilayer PCB, the cost of drilling usually accounts for 30% to 40% of the cost of PCB board making. Simply put, each hole on the PCB can be called a hole. From a role perspective, vias can be divided into two categories:…