Semiconductor Interconnect Semiconductor Interconnect - Semiconductor Coating Systems - Cheersonic The conductivity of semiconductors lies between conductors and nonconductors (i.e. insulators), a property that allows us to fully control the flow of electricity. Components such as transistors can be built through wafer-based lithography, etching and deposition processes, but they also need to be connected to send and receive power and signals. Metals are used for circuit interconnection because [...]

Wafer Thin Film Deposition Wafer Thin Film Deposition - Photoresist Coating - Cheersonic To create the tiny devices inside the chip, we need to continuously deposit layers of thin films and etch away the excess, as well as add materials to separate the different devices. Each transistor or memory cell is built step-by-step through the above process. By "thin film" we mean here a "film" that is less [...]

Wafer Etching Wafer Etching - Polyimide Coatings - Photoresist Coating - Cheersonic After the photolithography of the circuit pattern on the wafer is completed, an etching process is used to remove any excess oxide film and leave only the semiconductor circuit pattern. To do this requires the use of liquid, gas or plasma to remove selected excess. There are two main methods of etching, depending on the substance [...]

Wafer Lithography Wafer Lithography - Polyimide Coatings - Photoresist Coating - Cheersonic Lithography is the "printing" of a circuit pattern onto a wafer by light, which we can understand as drawing the plan on the surface of the wafer required for semiconductor fabrication. The higher the fineness of the circuit pattern, the higher the integration of the finished chip, which must be achieved through advanced lithography technology. Specifically, [...]

Wafer Processing Wafer Processing - Photoresist Deposition System - Cheersonic All semiconductor processes start with a grain of sand! Because the silicon contained in the sand is the raw material needed to produce wafers. Wafers are circular slices formed by cutting a single crystal cylinder of silicon (Si) or gallium arsenide (GaAs). To extract high-purity silicon materials, silica sand, a special material with a silicon dioxide content of [...]

Wave-soldering Flux Coating Based on the below application, A. Liquid: fluxer B. Board: 8" x 10" C. Spray area: bottomside D. Capacity Requirements: not high volume, 2 min per board There is ultrasonic spray coating equipment UAM4000 which is popular in experiment R&D and low volume production. It has been widely used in spraying fluxer, and I equipped below configuration for you. Cheersonic focused on the ultrasonic coating [...]

Gas Sensor Classification Gas Sensor Classification - Spraying Thin Film Polymers - Cheersonic A gas sensor is a sensor that is used to detect the presence of a specific gas in a certain area and/or can continuously measure the concentration of a gas component. Gas sensors are commonly used in coal mines, petroleum, chemical, municipal, medical, transport and household safety and protection applications to detect the concentration or [...]

Gas Sensor Characteristics Gas Sensor Characteristics - Sensors Manufacturing Coating Systems - Cheersonic Gas sensors are primarily used for the detection of a specific gas, measuring the presence of the gas in the vicinity of the sensor or the amount of air in the vicinity of the sensor. For this reason, gas sensors are often indispensable in safety systems. Characteristics of gas sensors 1. Stability Stability refers to [...]