What is a PCB Step Slot? First, let’s briefly understand what a step slot is. In multilayer PCBs, conventional slots penetrate the entire thickness of the board. In contrast, a step slot is a non-through, depth-controlled slot that extends only to specific layers within the board, resembling a “step” in its cross-section, hence the name. … Read more
The appearance of “stair-step” or “irregular serrated edges” on PCB traces is usually not the intended design but rather a phenomenon that needs to be controlled, caused by a combination of manufacturing processes and physical principles. The core reason is the interaction between the edge effects of the photoresist layer (dry film or wet film) … Read more
Multilayer Precision Impedance Blind Hole PCBs: Which Quality Service Provider to Choose? In modern electronic products, the application of multilayer precision impedance blind hole PCBs is becoming increasingly widespread, especially in fields such as communication equipment, computers, medical devices, and high-end consumer electronics. However, with numerous PCB manufacturers in the market, choosing a quality service … Read more
The following are key considerations to keep in mind when processing RF antenna PCBs, covering all aspects from material selection to specific process requirements: 1. PCB Substrate Selection This is the most critical foundation; if the wrong material is chosen, subsequent processes cannot compensate for it. 1. Low Loss High-Frequency Materials: It is essential to … Read more
This article highlights: Features and design points of the RK3588 DDR controller Power design differences for LPDDR4/LPDDR4X/LPDDR5 8/10 layer stack-up solutions and impedance control Practical layout and routing techniques and timing requirements Common design pitfalls and avoidance guide 1. Introduction to RK3588 DDR Controller The RK3588 DDR controller supports LPDDR4/LPDDR4X/LPDDR5 standards, featuring: 64-bit data bus, … Read more
In today’s rapidly advancing electronic technology, high-frequency circuit boards have become core components in fields such as 5G communication, satellite radar, and high-speed data processing. These areas have extremely high requirements for signal integrity and low-loss transmission, making the choice of a reliable manufacturer crucial. This high-frequency circuit board recommendation consultation will systematically introduce the … Read more
Eight-Layer PCB Fabrication | High-Speed Signal Integrity and Impedance Control In high-speed digital circuits and RF applications, signal integrity and impedance control are critical factors determining device performance. The eight-layer PCB, with its multilayer stack design, has become the preferred solution for addressing high-frequency signal interference and enhancing transmission efficiency. As a professional manufacturer with … Read more
“ This article introduces the key principles and practices for correctly routing USB differential data lines on a PCB. The main goal is to achieve the 90-ohm impedance matching specified in the USB standards, while also considering ESD protection and a complete ground plane.“ USB Speed Levels and Impedance Requirements The USB speed standards have … Read more
The biggest challenge in high-speed design is to minimize crosstalk, ensuring good signal integrity during transmission while also reducing the impact of noise on the PCB. Since single-ended signals and Low Voltage Differential Signaling (LVDS) are typical types of high-speed interface signals, it is essential to ensure the transmission of these two types of signals.In … Read more
Overview of Robot Controller Categories Control Type Control Dimension Applicable Level Common Uses Position Control Joint Position Basic/Low Level Simple trajectory tracking, calibration Velocity Control Joint Velocity Intermediate Smooth movement, planning execution Torque Control Joint Torque Advanced Fine dynamic operations Impedance Control End Effector Force + Desired Position Advanced Tasks involving contact or flexible operations … Read more