见解

任何电子产品都必须使用两个组件，即所谓的“活动组件”和“被动组件”。顾名思义，“主动组件”是可以独立执行操作的组件，而“被动组件”起了被动保护作用。当电子产品更改电流或电压时，“被动组件”的作用是通过低压，过滤噪声等来保护“主动组件”。简单地说，“被动组件”以低单位价格准备就绪为了保护高单位价格的“主动组件”的安全性。

在半导体材料的领域，第一代半导体是Si，第二代是GAAS，第三代宽的能量差距半导体是指SIC和GAN。

GaN and SiC - The third-generation semiconductor material, has long been widely used in blue and green LEDs and lasers. GaN and SiC have become a must-have technology for many manufacturers.

In the semiconductor industry, wafer has always been mentioned. But what exactly is a so-called wafer? What does the 8 inches, 12 inches refer to? How difficult is it to produce large-sized wafers? The following is a step-by-step introduction to the most important foundation of semiconductors, wafer.

根据估计，全球仓储自动化市场的复合年增长率（CAGR）在2023年预计将达到12.6％，其中包括加入收购以改善产品和服务并增加收入的私募股权公司。

机床是一台用于制造各种机器和加工设备的机器，在国家工业发展中占据关键位置。为了响应全球数字转换，机床也正朝着智能机器发展。

The so-called broach refers to the order of size, the rough cutter, and the fine cutter. Most of the cutters are installed on the broaching machine, which is a broach.

光传感器是一种传感器，可将光信号转换为使用光敏元素的电信号。光传感器通常由一组轻型投影仪和光接收器组成。光传感器通常由三个部分组成：光源，光路和光电组件。测得的变化在光电元件的帮助下将光信号的变化转换为光信号的变化。将来，随着物联网技术的发展和普及，光传感器的应用将渗透到人类生活的各个方面。

The valve, is an important adjustment device in the fluid transportation system, which can basically control the on-off, flow and flow direction of the fluid. There are many types and specifications of valves, and the valves used for different work requirements are also different. The working principles, advantages and disadvantages of five common types of valves are described is this article.

The technology of 3D printing medical materials has soared. The new technique "Layered Manufacturing Technology", also known as 3D printing, which is produced by layer-by-layer additive method, has become a popular in recent years. With the rapid advancement of 3D printing technology, the market of 3D printing medical materials has greatly grown.