PCB Technical - Related PCB Technology Blog Posts page 203

2021-08-25

Input impedance refers to the equivalent impedance of the input terminal of a circuit. Add a voltage source U to the input terminal and measure the current I at the input terminal, then the input impedance Rin is U/I. You can think of the input terminal as both ends of a resistor , The resistance of this resistor is the input impedance.

2021-08-25

At low frequencies, the via hole has little effect. But in the high-speed series connection, the via hole will ruin the entire system. This article will describe a simple via-hole modeling and simulation process, from which you can get some key points for optimal design.

2021-08-25

In order to carry out circuit simulation, the model of the components must be established first, that is, for the various components supported by the circuit simulation program, there must be corresponding mathematical models in the simulation program to describe them, that is, the calculation formula that can be operated by the computer To express them.

2021-08-25

Abstract: With the increase of packaging density and the increase of operating frequency, the signal integrity problem in MCM circuit design cannot be ignored. This article takes the detector circuit as an example. First, the layout design of the circuit is realized by APD software.

2021-08-25

Signal Integrity (Signal Integrity): refers to the quality of the signal in the circuit system. If the signal can be transmitted from the source to the receiving end without distortion within the required time, we call the signal complete.

2021-08-25

If the thickness and width of the lines on the PCB do not change, and the distance between the trace and the return plane does not change, the transient impedance felt by the signal does not change, and the transmission line is uniform. For a uniform transmission line, the constant transient impedance describes the characteristics of the transmission line, which is called the characteristic impedance.

2021-08-25

With the increasing complexity and performance of electronic products, the density of printed circuit boards and the frequency of their related devices are constantly increasing, and the various challenges that engineers face in the design of high-speed and high-density PCBs are also increasing.

2021-08-25

Analysis of bad vias in the circuit board factory I. IntroductionCopper-free vias are also called vias. It is a function...

2021-08-24

What are the types of FPC flexible circuit board​, iPcb is FPC flexible circuit board manufacturer.

2021-08-24

In the component interconnection technology of electronic products, printed circuit board (PCB) is commonly used, Installation and assembly of printed circuit board (PCB).

2021-08-24

The industry knows that the purpose of PCB surface treatment is to ensure good solderability or electrical performance....

2021-08-24

What is the general thickness of the FPC soft board FPC soft board is mainly made of polyimide or polyester film as th...

2021-08-24

Why is the edge of the PCB scorched during electroplating of the PCB multi-layer circuit board?

2021-08-24

Create grooves and non-circular hole pads on multilayer circuit boardsThe circuit board manufacturer will show you tha...

2021-08-24

Analysis of the Causes of Wrinkles and Bubbles in the Soldering Inks of Multilayer Circuit Boards 1. Multi-layer circu...

2021-08-24

Explanation of IC packaging terms (1)1. BGA (ball grid array)A display of spherical contacts, one of the surface mount p...

2021-08-24

Reasons for the failure of multi-layer circuit boards Under the competition in the professional circuit board market, ...

2021-08-24

Precautions for processing and pre-baking of multi-layer circuit board factory Multi-layer circuit board processing an...

2021-08-24

Circuit board factory: copper sinking process for production and processing Maybe we will be very strange that the sub...

2021-08-24

Maintenance and maintenance of electroplating production line in circuit board factory Types of equipment In the produ...