In the field of industrial control systems, autonomy and controllability have become the cornerstone of national security and industrial safety. Faced with an increasingly complex international environment, China urgently needs to overcome the “bottleneck” problem in its industrial control systems. The launch of the Hualisi LKC series PLC marks a solid step forward for China … Read more
To address the issue of node overload and even failure due to resource constraints in the Industrial Internet of Things (IIoT) edge computing environment, the author proposes a fault tolerance method based on edge intelligence called SGAT-GAN (Sparse Graph Attention-based Generative Adversarial Network). This method integrates a fault prediction mechanism and utilizes Fault Embedding Encoder … Read more
In the reliability assessment of printed circuit board assembly (PCBA), the microstructure of solder joints, particularly the intermetallic compound (IMC) layer, is crucial for determining long-term performance. The IMC layer, as a product of the metallurgical bonding between solder and pad, directly affects the mechanical strength and electrical connection stability of the solder joint. Under … Read more
MQTT and CoAP are commonly used lightweight communication protocols in the Internet of Things (IoT) field, and they exhibit significant differences in design goals, application scenarios, and technical characteristics. Below is a main comparison of the two: 1. Transport Layer Protocol · MQTT: Based on TCP, it provides reliable transmission and requires maintaining a long … Read more
What is PCB Conformal Coating? PCB Conformal Coating, also known asPCB Coating or protective coating, is a specially formulated adhesive coating used to protect printed circuit boards (PCBs) and their associated devices from environmental factors. It can form a protective film on the surface of the PCB, which has various protective functions, thereby enhancing the … Read more
When we effortlessly browse the web, send emails, or watch videos, data is traveling at the speed of light between billions of devices worldwide. Behind this orderly process lies not magic, but a carefully designed set of rules—the TCP/IP protocol. It is hailed as the “foundation” of the internet and can even be considered the … Read more
Why Has “Reliability” Become a New Anxiety for Multi-Die Packaging? In the context of the semiconductor industry accelerating into the post-Moore era, multi-die packaging and heterogeneous integration technologies have become key paths to enhance performance and reduce power consumption. However, the complexity of these technologies has led to new reliability challenges. According to a recent … Read more
In the Linux system, the virtual file system (VFS) serves as an abstraction layer for file systems, providing a unified file operation interface for upper-level applications. The previous article detailed the core member interface functions of Linux VFS, helping to understand the underlying implementation of file systems. The atomic operation mechanism implemented at the VFS … Read more
Semiconductor equipment development is a highly complex system engineering task that requires comprehensive consideration of various factors such as technical performance, process adaptability, environmental control, and economic viability. Among these, precision, stability, ease of maintenance, and reliability are the four core elements, whose prioritization and balance need to be dynamically adjusted based on specific process … Read more
1. What is Tg? Tg, or glass transition temperature, refers to the critical temperature at which PCB materials transition from a hard, brittle “glass state” to a soft, plastic “rubbery state” under heat. It can be simply understood as the melting point where the substrate begins to soften and lose rigidity. It is important to … Read more