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1) Substrate:

The chip resistor base material data are taken from 96% al2O3 ceramics. In addition to good electrical insulation, the substrate should also have excellent thermal conductivity at high temperatures. The motor has characteristics such as mechanical strength. In addition, the substrate is required to be flat and correctly marked. Fully protect the standard of resistance. The electrode paste is printed in place.

2) Resistive film:
A resistor paste with a certain resistivity is printed on a ceramic substrate, and then sintered. Ruthenium dioxide is used alone for resistance paste.

3) Maintenance film:
In order to maintain the resistor body, it is important to cover the resistor film with a maintenance film. On the one hand, it plays the role of mechanical maintenance. On the other hand, the resistor body is nominally insulated to prevent the resistor from contacting adjacent conductors and causing failure. It is also possible to prevent the electrode from being corroded by the electro-transfer liquid during the electro-transfer process, resulting in a decrease in the resistance function. The maintenance film is a low-melting glass paste, which is printed and sintered. Chip resistor company
4) Electrode:
In order to ensure the good solderability and robustness of the resistor, a three-layer electrode structure is used alone: ​​internal. inside. External electrode. The internal electrode is the internal electrode connected to the resistor body. The electrode data should be selected. The resistance film has low contact resistance, strong compatibility with the ceramic substrate, good chemical resistance, and easy electroplating operation. Some are printed and sintered with silver-palladium alloy. The side electrode is a nickel-plated layer, also known as a wave barrier layer. Its function is to improve the heat resistance of welding and buffer the thermal shock of welding. It can also avoid the migration of silver ions to the resistive film layer, and prevent the external electrode tin-lead layer (also called the solderable layer) from corroding the internal electrode. Its function is to make the electrode have good solderability and extend the storage period of the electrode. Some are electroplated with tin-lead alloy.

Rectangular chip resistors are divided into thin film resistors and thick film resistors according to resistance data. Chip inductors This type of chip inductors is also called power inductors and high current inductors. Chip inductance is a characteristic of closed loop. The film resistor has high precision and low temperature coefficient. The firmness is good, but the resistance range is narrow, suitable for delicate high-frequency products. Thick film resistors are often used in circuits.