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An Overview of Linear Integrated Circuits23 October 2025
A linear integrated circuit is an integrated circuit based on an amplifier. The meaning of "linear" used to indicate that the response relationship of the amplifier to the input signal is usually linear.In this essay, we’ll first introduce the development history of linear integrated circuit. And then the production process and the high-frequency technology are discussed in detail. The following two parts mainly talk about the linear integrated circuit types and forms. And the final chapter analyzes the two typical bipolar linear integrated circuit一 Lm386 and 34063.
SMD Resistors: Codes, Size, Testing, Tolerance and Selection23 October 2025
SMD Resistor or Chip Fixed Resistor is one of the metal glass glaze resistors. It is a resistor made by mixing metal powder and glass glaze powder and printing on the substrate by the screen printing method. It is resistant to humidity and high temperature and has a low-temperature coefficient. SMD Resistor can greatly save the cost of circuit space and make the design more refined.
Types, Structure, and Packages of Integrated Circuits23 October 2025
The type of integrated circuit can be divided according to its use, function, structure, manufacturing process, integration, and conductivity type. The structure of the integrated circuit can be learned from levels from top to bottom: system level - module level - register transfer level (RTL) - gate level - transistor level. The packaging forms of integrated circuits include SOP, PGA, BGA, DIP.
What is a Decoupling Capacitor?23 October 2025
In electronic circuits, it is often seen that there is an electrolytic capacitor near the power supply pins of the integrated circuit. This capacitor is a decoupling capacitor. Decoupling capacitors usually have two functions: one is energy storage, and the other is to remove high-frequency noise.
Introduction to Light-emitting Diode23 October 2025
The light-emitting diode is simply referred to as LED. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light.
What are the Differences Between Pull up and Pull down Resistors?22 October 2025
Pull up is to clamp an uncertain signal to a high level with a resistor, and the resistor also acts as a current limiter. In the same way, pull down means to clamp the uncertain signal to a low level through a resistor. To pull up is to input current to the device, and the pull-down is to output the current.
Analysis of Semiconductor Wafers22 October 2025
The wafer is the basic raw material for manufacturing semiconductor devices. Various circuit element structures can be fabricated on silicon wafers, thereby becoming integrated circuit products with specific electrical functions.
Diodes Tutorial: How to Test Diodes?22 October 2025
A diode is an electronic device made of semiconductor materials. The diode is one of the earliest semiconductor devices, and it is widely used, especially in various electronic circuits.
Introduction to Photonic Integrated Circuits and PIC Technology22 October 2025
The concept of the photonic integrated circuit is similar to the concept of electronic integrated circuits. However, electronic integrated circuits integrate transistors, capacitors, resistors, and other electronic devices, while PIC integrates various optical devices or optoelectronic devices, such as lasers, electro-optical modulators, photodetectors, optical attenuators, optical multiplexers/demultiplexers, and optical amplifiers.
Basic Introduction to Film Capacitors22 October 2025
The film capacitor is also called a plastic film capacitor. It uses plastic film as the dielectric. Depending on the medium, there are many types of capacitors, such as electrolyte capacitors, paper capacitors, film capacitors, ceramic capacitors, mica capacitors, and air capacitors. Film capacitors are widely used in analog signal cross-linking, power supply noise bypass (reverse cross-linking), and other places.
What is a Semiconductor?22 October 2025
Semiconductor refers to a material whose conductivity is between a conductor and an insulator at room temperature. Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting applications, and high-power power conversion.
Schottky Diodes: Principle, Functions, and Applications21 October 2025
Schottky diodes are metal-semiconductor devices made of precious metals (gold, silver, aluminum, platinum, etc.) A as the positive electrode and N-type semiconductor B as the negative electrode. Schottky diodes are unidirectionally conductive and can convert alternating currents into pulsed direct currents in a single direction.