judith

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So far judith has created 962 blog entries.

About the difference between FPC circuit board and PCB circuit board

FPC is a kind of printed circuit board, which is called flexible circuit board, and we call it FPC soft board. FPC generally uses PI as the base material, which can be bent and flexed arbitrarily. PCB is a so-called rigid circuit board, which is usually called a hard board. PCB generally uses FR4 as [...]

2020-06-13T03:37:55+00:00June 13th, 2020|

What is the role of the circuit board

The names of the circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra Thin circuit boards, printed (copper etching technology) circuit boards, etc. The circuit board makes the circuit miniaturized [...]

2024-03-20T13:21:40+00:00June 13th, 2020|

Instructions and steps for manual soldering of circuit boards

How to set the speed and temperature of reflow soldering just right The main factors that determine the quality of reflow soldering products are the settings of reflow soldering temperature and reflow soldering speed in the reflow soldering process. These two key process points are set... How can I disassemble the IC block During circuit [...]

2020-06-13T03:35:13+00:00June 13th, 2020|

Layering design principle of printed circuit board

1. Principle of 20H If the printed circuit board has the ideal voltage and frequency, it will transmit electromagnetic into space; In order to reduce the probability of this situation, it is necessary to make the physical size of the signal line printed board of one floor and the physical size of the surrounding connection [...]

2020-06-02T03:46:48+00:00June 2nd, 2020|

Automatic soldering machine for PCB circuit board

Automatic soldering machine for PCB circuit board Automatic solder robot is a solder welding equipment, so in addition to the manipulator movement function, its main or to complete the solder job. So the core part of the soldering robot is the welding system. The solder system mainly consists of automatic tin feeding mechanism, temperature control, [...]

2024-03-20T13:21:40+00:00June 2nd, 2020|

What are the layout requirements of PCB circuit board for components

PCB is an important electronic component, the support body of electronic components, and the carrier of electrical connection of electronic components. What are the requirements for PCB component layout? Let's introduce it to you. 1, the signal Signal interference is the most important factor to consider in PCB layout design. The most basic aspects are: [...]

2024-03-20T13:21:40+00:00June 2nd, 2020|

Detailed knowledge of double sided circuit board welding

Detailed knowledge of double sided circuit board welding. Compared with the single panel, the double-sided circuit board has higher wiring density and smaller aperture. The metallized holes on which interlayer interconnection depends are directly related to the reliability of printed circuit boards. With the narrowing of the aperture, some sundries, such as grinding debris, volcanic [...]

2024-03-20T13:21:40+00:00June 2nd, 2020|

How to design high efficiency power supply with low EMI on crowded circuit board?

Limited and shrinking circuit board space, tight design cycles, and strict electromagnetic interference (EMI) specifications, such as CISPR 32 and CISPR 25, make it difficult to obtain a power source with high efficiency and good thermal performance. Throughout the design cycle, the power design is usually at the end of the design process, and the [...]

2024-03-20T13:21:40+00:00June 2nd, 2020|

Why is the color of the circuit board different?

Why is the color of the circuit board different? How many colors does the circuit board have? At present, the PCB circuit boards in the market are more common in green, black, blue, yellow, purple, red and brown; recently, PCBs of different colors such as white and pink have appeared. So, why do PCB circuit [...]

2020-05-28T03:25:15+00:00May 28th, 2020|
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