PCB manufacturer China:How to implement this type of testing in practice
There are basically two ways to perform this process:
Needle-bed test: This type of test is usually called "bed-of-needle test". The method is to place the card on a frame that has many retractable pins that are in contact with the same number of pads on our card. As PCB manufacturer China knows that,the connection is connected to an interface that performs the different continuity, capacitance and insulation measurements required by the program. This process is aimed at large-scale production, in which case putting the product on the market requires rapid production of printed circuits for assembly.
The image below shows two cards mounted on an aluminum frame, and then down into the test needle bed at the bottom of the machine to perform the above process.
Flying probe electrical test: In this process, the card is placed vertically in the frame, and the test probes are moved along the XY direction on both sides of the circuit to accurately place them on the pads whose electrical characteristics are to be tested. Then, the test wires move on the Z axis until they make contact with the pads, as shown in the figure below, allowing the software to perform the required measurements and display the results of determining whether the card is passed or rejected. (fail).
For all networks that make up the printed circuit, repeat the above sequence at the speed allowed by the system to ensure that we only receive electrically reliable cards for later assembly.
Today’s printed circuits require this state-of-the-art technology to perform this process. In this process, high-precision CNC systems are combined to allow the test line to be accurately positioned on the current fine pitch pad of 0.2mm wide. superior.
Other news about S&L
- Flexible PCB manufacturer:FPC unit price affected by what factors
- Properties and Applications of Automotive PCB
- Multi-layer PCBs :Manufacturing, and Applications
- PCB supplier China:PCB Surface Finishes - OSP
- PCB manufacturer China:Blind and Buried Via in PCB
- About of Flex rigid PCB
- About Rigid flex PCB
- Applications and Types of Health care PCB
- Flexible PCB manufacturer:Why Buy Flexible PCB Board?
- Flexible PCB supplier China :Application of FPC in new energy vehicl
Your browsing history
- PCB supplier china, Can you imagine Lao Gan Ma adds to fashion?
- How to solve impedance problems for high frequency PCB
- What is FPC?
- Benz
- Flexible PCB supplier china : advantages and disadvantages
- Industry dynamic global electronic business the latest intelligence PCB manufacturers attention
- Why is Rigid flex PCB is so Expensive
- Flexible PCB supplier china :The stages of the FPCA process
- Flexible PCB Manufacturer
- Why do we Panelize Health care PCB as Tab-routing
A total of -comments【I want to comment】