Solution for pressure testing system of ceramic copper-clad laminates

1、 Industry background:

Ceramic copper-clad laminate, also known as DBC (Direct Bond Copper) ceramic substrate, is an electronic base material that directly sinter copper foil on the surface of ceramics. This material has many significant characteristics, such as good insulation performance, excellent heat dissipation performance, low thermal resistance coefficient, matching thermal expansion coefficient, good mechanical properties, and welding performance. Ceramic copper-clad laminates are mainly used in power electronics module technology as carriers for various chips such as IGBT chips, diode chips, resistors, SiC chips, etc. Its function is similar to that of a PCB board, which can complete the connection of the chip's connecting poles or surfaces.

The application fields of ceramic copper-clad laminates are very wide, including high-power power electronic circuits, semiconductor refrigerators, electronic heaters, power control circuits, high-frequency switching power supplies, solid-state relays, automotive electronics, aerospace and military electronic components, solar panel components, etc.

2、 Application requirements:

1. Multi channel AC voltage withstand testing system. N-channel parallel testing function (can be used to test N products simultaneously, or to test a single product or several products separately; Each product has 3 points (A, B, C), which can be selected to open or close one or more testing channels according to actual needs. It can be tested in automatic mode or manual mode, and can switch between two states of the contact points. The voltage value can also be set arbitrarily.

2. Channel switching, each channel can achieve, A → B+C circuit withstand voltage test, at this time point A high voltage, point B, C same source low voltage; Then A+B → C circuit withstand voltage test, at which point A and B have the same high voltage source, and point C has low voltage.

3. The ability of each channel to test independently and avoid series power is the core function, which is the foundation for the continuation of parallel testing.

3、 Solution:

The ceramic copper-clad laminate pressure testing system developed by Ruijie Intelligent is designed to test the pressure resistance performance of ceramic copper-clad laminates.

The system adopts an open hardware and software architecture, providing testing equipment such as voltage testers, test consoles, and industrial computers developed by Ruijie Company. It provides testing solutions for users' basic needs such as precision testing for research and development, high-speed testing for production, quality inspection testing, and other personalized needs.