ohmic contact

简明释义

电阻性接触

英英释义

例句

1.In solar cell applications, achieving a low-resistance ohmic contact 欧姆接触 is crucial for efficiency.

在太阳能电池应用中，实现低电阻的ohmic contact 欧姆接触对效率至关重要。

2.Testing showed that the ohmic contact 欧姆接触 had a significant impact on the device's performance.

测试表明，ohmic contact 欧姆接触对设备性能有显著影响。

3.The research focused on improving the quality of the ohmic contact 欧姆接触 between metal and semiconductor materials.

该研究专注于改善金属与半导体材料之间的ohmic contact 欧姆接触的质量。

4.To minimize power loss, engineers must ensure a reliable ohmic contact 欧姆接触 in circuit design.

为了最小化功率损失，工程师必须确保电路设计中可靠的ohmic contact 欧姆接触。

5.The team developed a new alloy to enhance the ohmic contact 欧姆接触 properties in electronic devices.

该团队开发了一种新合金，以增强电子设备中的ohmic contact 欧姆接触特性。

作文

In the field of electronics, one of the fundamental concepts that engineers and scientists must understand is the notion of ohmic contact. An ohmic contact refers to a type of electrical junction that allows current to flow freely in both directions with minimal resistance. This characteristic is crucial for the efficient operation of electronic devices, as it ensures that electrical signals can be transmitted without significant energy loss. The importance of ohmic contact cannot be overstated, especially in the design and fabrication of semiconductor devices, where the performance of the entire circuit can hinge on the quality of these contacts.To delve deeper into the concept, it's essential to recognize how ohmic contact is established. Typically, this involves the interface between a metal and a semiconductor material. When a metal is deposited onto a semiconductor, the interaction at the boundary can lead to the formation of energy barriers. However, for an ohmic contact to be formed, these barriers must be minimized. This is often achieved by selecting appropriate materials that have compatible work functions, thus allowing for efficient charge carrier injection.One common method to achieve ohmic contact is through the use of heavily doped regions in semiconductors. By increasing the doping concentration, the energy barrier at the metal-semiconductor interface can be lowered, facilitating a more straightforward flow of current. This technique is widely used in the production of transistors and diodes, where reliable ohmic contacts are essential for device functionality.Moreover, the quality of ohmic contact can significantly impact the overall performance of electronic devices. Poorly formed contacts can lead to increased resistive losses, resulting in heat generation and reduced efficiency. In high-frequency applications, such as radio frequency (RF) circuits, inadequate ohmic contacts can cause signal distortion and degradation, ultimately affecting the performance of communication systems.In recent years, research has focused on improving the reliability and performance of ohmic contacts through various innovative techniques. For instance, the use of advanced materials, such as graphene or carbon nanotubes, has shown promise in enhancing the conductivity of contacts. Additionally, surface treatments and modifications at the nanoscale level are being explored to create better interfaces that facilitate ohmic contact.In conclusion, understanding the concept of ohmic contact is vital for anyone involved in the field of electronics. As technology continues to advance, the demand for efficient and reliable ohmic contacts will only increase. Engineers must continue to innovate and explore new materials and methods to ensure that these critical junctions meet the performance requirements of modern electronic devices. Ultimately, the development of superior ohmic contacts will play a significant role in the future of electronics, paving the way for faster, more efficient, and more reliable technologies.

在电子学领域，工程师和科学家必须理解的基本概念之一是欧姆接触的概念。欧姆接触指的是一种电气接点，它允许电流在两个方向上自由流动，且电阻极小。这一特性对于电子设备的高效运行至关重要，因为它确保电信号能够在没有显著能量损失的情况下传输。欧姆接触的重要性不容小觑，尤其在半导体设备的设计和制造中，整个电路的性能往往取决于这些接触的质量。深入了解这一概念，有必要认识到如何形成欧姆接触。通常，这涉及金属和半导体材料之间的界面。当金属沉积到半导体上时，边界处的相互作用可能导致能量屏障的形成。然而，要形成欧姆接触，这些屏障必须被最小化。这通常通过选择具有兼容功函数的合适材料来实现，从而实现高效的电荷载流子注入。实现欧姆接触的一种常见方法是通过在半导体中使用重掺杂区域。通过增加掺杂浓度，可以降低金属-半导体界面处的能量屏障，促进电流的更顺畅流动。这种技术广泛应用于晶体管和二极管的生产中，其中可靠的欧姆接触对于器件功能至关重要。此外，欧姆接触的质量会显著影响电子设备的整体性能。接触不良可能导致电阻损耗增加，从而产生热量并降低效率。在高频应用中，例如射频（RF）电路，不充分的欧姆接触可能导致信号失真和降解，最终影响通信系统的性能。近年来，研究集中在通过各种创新技术改善欧姆接触的可靠性和性能。例如，使用先进材料，如石墨烯或碳纳米管，已显示出增强接触导电性的潜力。此外，正在探索纳米级表面处理和改性，以创建更好的界面，从而促进欧姆接触。总之，理解欧姆接触的概念对于任何参与电子学领域的人来说都是至关重要的。随着技术的不断进步，对高效和可靠欧姆接触的需求只会增加。工程师们必须继续创新，探索新材料和方法，以确保这些关键接点满足现代电子设备的性能要求。最终，优质欧姆接触的发展将在电子学的未来中发挥重要作用，为更快、更高效和更可靠的技术铺平道路。