A semiconductor chip, 일반적으로 집적 회로라고 합니다, is a semiconductor device fabricated on a semiconductor wafer through processes such as etching, wiring, and patterning to achieve specific functions. Beyond silicon chips, common semiconductor materials include gallium arsenide, 질화갈륨, and silicon carbide.
마지막 리뷰: 9월 2026
주요 요점
Semiconductors are materials with conductivity between conductors and insulators, forming the basis of all integrated circuits.
Beyond silicon, key semiconductor types include gallium arsenide (가스(GaAs)), 질화갈륨 (질화 갈륨) and silicon carbide (원문대로), each with distinct application niches.
GaAs serves RF and optoelectronics, GaN serves high-frequency power, and SiC serves high-voltage, high-temperature power devices.
The semiconductor manufacturing process is akin to turning base materials into gold, primarily involving a series of treatments on silicon wafers. In essence, through epitaxial growth, photolithography, 에칭, doping, and polishing, the required circuits are formed on the silicon wafer, transforming it into a chip.
Types of Semiconductors
Semiconductor materials are electronic materials used in the production of semiconductor devices and integrated circuits, forming the foundation of the semiconductor industry.
With the emergence of new semiconductor materials, advancements in power electronics technology, and improvements in manufacturing processes, semiconductors have undergone three generations of changes. Gallium arsenide (가스(GaAs)) and gallium nitride (질화 갈륨), as well as silicon carbide (원문대로) 반도체, represent the second and third generations of semiconductors, 각각.
Compared to the first-generation semiconductor silicon (Si), these materials exhibit superior performance in aspects such as high frequency and high temperature.
Compound semiconductor chips, known for their excellent high-frequency performance, are commonly used in the production of power semiconductors, with their applications becoming increasingly widespread. Through techniques such as frequency conversion, voltage transformation, current modulation, power amplification, and management, these chips serve two primary functions: amplification and switching.
현재, over 75% of electrical energy applications require power conversion before being supplied to devices. Their applications continue to expand.
Amplification involves converting low-frequency power into high-frequency power, leveraging amplification to drive motors with low power efficiently. Switching entails toggling circuits on and off, with faster switching speeds enabling precise control.
Amplification: Converting low-frequency power into high-frequency power, making full use of amplification allows for driving motors with low power effectively.
Switching: 회로 켜고 끄기, 스위칭 속도 빨라짐, 더 정밀한 제어가 가능하다.
갈륨 비소 반도체
갈륨 비소 반도체 칩은 주로 마이크로파 전력 장치에 사용된다, 마이크로파 주파수 대역에서 동작한다 (사이 300 그리고 300,000 메가헤르츠). 실리콘의 물리적 한계 때문 (Si), 그 이하 주파수에서만 적용 가능 1 GHz. 그렇지만, 최근 몇 년 동안, 무선 고주파 통신 제품의 급속한 발전으로 갈륨 비소가 전면에 부상, 높은 작동 주파수 등의 특성을 보여주며, 전자 이동률, 자연 방사선 저항성, 저전력 소비, 마이크로파 통신 분야에서 널리 사용됨.
갈륨 비소의 고주파 투과 특성을 고려할 때, it has seen rapid growth not only in mobile phone applications but also in WiFi modules embedded in laptops, tablets, fixed network wireless transmission, as well as fiber optic communication, satellite communication, point-to-point microwave communication, cable television, automotive navigation systems, and collision avoidance systems. These applications often employ varying numbers of power amplifiers (ranging from 1 받는 사람 4 chips), driving the significant advancement of gallium arsenide.
Gallium Nitride Semiconductor
Gallium nitride material, with a bandgap width of 3.4 eV, is considered a third-generation semiconductor material along with materials like SiC and diamond, known as wide-bandgap semiconductors. Due to its advantages such as a wide bandgap, high breakdown field, large saturation electron velocity, 높은 열전도율, 낮은 유전 상수, 화학적 안정성, and strong radiation resistance, gallium nitride has become one of the preferred materials for high-temperature, high-frequency, 및 고출력 마이크로파 장치.
Comparison of Gallium Nitride (질화 갈륨) with Gallium Arsenide (가스(GaAs)) and Silicon (Si):
The increasing demand for high-speed, high-temperature, and high-power semiconductor devices has led to the gradual adoption of gallium nitride material in the semiconductor market. Its primary application areas include:
Renewable Energy Sector:
In the field of renewable energy, gallium nitride plays an extremely important role in integrating wind and solar power into the grid and reducing transmission losses. Green energy, electric vehicles, green electronic lighting, and other emerging areas are becoming new hotspots for power device market applications, with strong demand.
Information Communication Equipment Sector:
Enhanced gallium nitride transistors exhibit high radiation resistance, making them suitable for power and communication systems in communication and scientific satellites. Point-to-point communication, satellite communication, various radars, and new industrial/defense applications will benefit from the application of these high-power gallium nitride devices.
4C Industries:
Major domestic IT products are expected to maintain strong market demand, with traditional products like laptops, monitors, printers, televisions, home theater systems, and Blu-ray players, as well as emerging automotive electronics, projected to experience steady growth in the future. As production capacity for electronic products such as air conditioners and energy-efficient motors shifts to the Chinese mainland, the demand for power semiconductors is expected to double.
Smart Grid Sector:
Power semiconductors play a crucial role in improving the overall energy efficiency of the entire power supply chain—from generation, transmission, and distribution to end-user consumption—in the field of smart grids.
Silicon Carbide Semiconductor
탄화규소 (원문대로) has become one of the most prominent semiconductor materials due to its outstanding performance under high temperature, 고압, and high frequency conditions. It is widely used in power conversion devices such as AC-DC converters and is expected to gradually replace silicon comprehensively in the field of semiconductor power devices, heralding the dawn of the Silicon Carbide Semiconductor era.
Compared to silicon devices, SiC semiconductor chips can reduce power losses by nearly 50%, effectively enhancing power conversion efficiency. SiC devices, with their high conversion efficiency and low heat generation, can reduce the size of cooling systems, leading to overall downsizing of power conversion devices. This is of significant importance for systems like new energy vehicles that require numerous power conversion devices. 그러므로, for systems requiring high conversion efficiency and power density, SiC devices offer unparalleled advantages and are the preferred choice.
Due to its exceptional performance, silicon carbide is particularly suitable for applications requiring high-power conversion, such as deep well drilling, solar inverters (for DC to AC conversion), wind energy inverters, electric and hybrid vehicles, industrial drives, and light rail traction systems.
Fabrication Method:
The semiconductor manufacturing process is akin to turning lead into gold, primarily involving a series of treatments on silicon wafers. While a detailed explanation can be quite complex, in simple terms, it involves epitaxial growth, photolithography, 에칭, doping, and polishing to create the required circuits on the silicon wafer, transforming it into a chip. Steps like photolithography and etching still rely on foreign technologies and the use of foreign patents
Semiconductor processing methods
Four Cutting Technologies: A Comparative Overview：
1. 다이아몬드 와이어 루프 커팅
Principle: A fast-moving loop of wire, coated with diamond particles, acts as a cutting tool, grinding through the material. Coolant is often used.
Key Advantage:Low stress, 높은 정밀도, minimal material waste. 이 “flexible” wire is gentle on brittle materials, enabling clean cuts with almost no edge chipping. It is the preferred method for slicing high-value, hard, brittle materials like SiC, 질화 갈륨, 사파이어, 그리고 광학 유리into thin wafers.
Limitation:Limited cutting speed. As a grinding process, its material removal rate is slower than thermal methods like laser cutting, 대량 또는 거친 절단 작업에 덜 효율적임.
2. 다이아몬드 쏘 블레이드 절단
Principle: 다이아몬드 코팅된 가장자리를 가진 회전 원형 칼날이 재료를 절단한다, 정밀 석재 절단기와 유사하다.
Key Advantage: 검증된 기술, 고효율, 비교적 저렴한 비용. 실리콘과 세라믹 블록의 거칠게 절단 및 사이징하는 표준 방법.
Limitation: 높은 기계적 충격. 가장자리 칩과 내부 응력 또는 미세 균열을 쉽게 유발할 수 있다, 초박형, 초경질, 고가가치 재료 마감에 부적합.
3. 레이저 커팅
Principle: 집중된, 고에너지 레이저 빔 용융, 기화, 재료를 변형, 가스 제트로 이물질을 제거함.
Key Advantage: 비접촉, 공구 마모 없음, 매우 빠르고, 매우 유연. 복잡한 2D 형상을 쉽게 다루고 수행 가능 “스텔스 다이싱” (내부 개조를 통한 분리), 웨이퍼 다이싱 및 실리콘 성형에 이상적, 사파이어, 그리고 유리.
Limitation:Creates a heat-affected zone that may change material properties at the cut edge. It can struggle with highly reflective (예), pure copper) or transparent materials. Equipment is expensive.
4. Electrical Discharge Cutting (와이어 EDM)
Principle:Controlled spark discharges between a thin wire electrode and the workpiece generate intense heat, locally melting and vaporizing the material.
Key Advantage:Cuts any conductive material regardless of hardness (예), 경화강, 텅스텐 카바이드, conductive ceramics). It achieves very high precision and can create complex shapes.
Limitation:Only works on conductive materials. The process is slow, and it leaves a recast layer on the cut surface.
Summary & Selection Guide
There is no single “best” technology—each is most suitable for specific tasks:
For ultimate cut quality and minimal loss when slicing hard, brittle wafers (예), 원문대로): Choose다이아몬드 와이어 루프 절단.
For efficient, low-cost rough cutting of hard, brittle blocks: Choose Diamond Saw Blade Cutting.
For high-speed cutting of complex 2D shapes in various materials (including non-metals): Choose Laser Cutting.
For machining intricate shapes in very hard, conductive materials (예), molds): Electrical Discharge Cutting is the only choice.
Current Situation:
현재, many technologies require a fresher perspective to be infused, as each step in the process could potentially lead to significant advancements. Regarding one specific aspect, we conducted a experiment on cutting 12-inch ingots two weeks ago. We utilized엔솔툴즈Limited’s다이아몬드 와이어 톱 기술, where the wire marks are nearly invisible, and the flatness can be controlled within 3 microns. This method addresses many issues related to cutting semiconductor concave surfaces, greatly reducing the difficulty of subsequent polishing and material consumption.
A semiconductor is a material whose electrical conductivity sits between a conductor and an insulator and can be controlled by doping, making it the foundation of integrated circuits.
What are the main types of semiconductor materials?
Silicon dominates general ICs; compound semiconductors include gallium arsenide (RF, optoelectronics), 질화갈륨 (high-frequency power) and silicon carbide (고전압, high-temperature power).
Where are SiC and GaN semiconductors used?
SiC is used in EV inverters and high-voltage power modules, while GaN is used in fast chargers, RF power amplifiers and 5G infrastructure.
