Dielectric paste is one of the three basic raw materials required for producing thick film circuits

1、 There are three basic raw materials required for producing thick film circuits. Of course, depending on the production requirements, all three can be purchased or one or two can be chosen.

1. conductive pasteIt is a paste mainly composed of silver, which serves as a conductor after printing and firing. Of course, there are other categories of materials, such as Silver palladium pasteIt is made by doping silver palladium alloy powder or silver palladium powder in different ratios, which can prevent the migration of silver ions at high temperatures and during soldering, Gold paste, platinum paste, copper pasteWait.

2.  electronic pasteAfter sintering, it mainly functions as a resistor and is mainly classified into ruthenium based materials resistor pasteCompared with other materials, ruthenium based resistor paste is mainly composed of silver palladium ruthenium precious metal for low resistance, and doped with ruthenium and glass powder for high resistance. Other resistor pastes include carbon paste, graphite paste, as well as tungsten paste, tungsten molybdenum paste, etc.

3. Medium slurryThe main component is low-temperature glass powder, which plays a role in protecting the resistance paste and conductor paste, waterproof, moisture-proof, insulation, etc.

    2、 Thick film circuit
Thick film circuit refers to an integrated circuit composed of a passive network fabricated using array film technology (screen printing, sintering, electroplating, etc.) on the same substrate and assembled with discrete semiconductor devices, single-chip integrated circuits, or micro components. It is generally believed that films with a thickness of several micrometers to tens of micrometers are thick films, and the materials used to make thick films are five types of pastes: conductors, resistors, dielectrics, insulation, and encapsulation. Thick film integrated circuits have simple manufacturing processes, low costs, and the ability to withstand high power, but there are certain limitations in the types and numerical ranges of components they produce.