High frequency PCB Manufacturer-Shenzhen Chengchi Circuit Technology Co., Ltd.

Welcome to Shenzhen Chengchi Circuit Technology Co., Ltd official website

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Shenzhen Chengchi Circuit Technology Co., Ltd.

Service Hotline +8618129931046 Mr. Liao

EN

Home > News >

Dec 03, 2025 1

ENIG (Electroless Nickel Immersion Gold) Process for Multilayer PCBs

　　　　ENIG, or Electroless Nickel Immersion Gold, is a popular surface finish for multilayer printed circuit boards (PCBs). This process is favored for its excellent surface planarity, good solderability, and wire bondability. The ENIG process involves depositing a layer of nickel followed by a thin l

Jun 25, 2025 1

Detail

Design of Digital-Analog Mixed Circuits in PCB

　　　　The design of digital-analog mixed circuits in printed circuit boards (PCBs) presents unique challenges and requires careful consideration of various factors to ensure optimal performance. Digital circuits operate on discrete voltage levels representing binary values, while analog circuits deal

Jun 24, 2025 1

Detail

Application of Multilayer Boards in Smart Grid Equipment

　　　　Multilayer printed circuit boards (PCBs) play a crucial role in the development and operation of smart grid equipment, enabling the efficient management and distribution of electrical power. The smart grid, characterized by its integration of advanced information and communication technologies w

Jun 24, 2025 1

Detail

Environmentally Friendly Surface Treatment Processes for PCB Boards

　　　　In an era of increasing environmental awareness and strict regulations, the development of environmentally friendly surface treatment processes for PCB boards has become imperative. Traditional surface treatment methods often involve the use of hazardous substances, such as lead-based solders an

Jun 24, 2025 1

Detail

Electroless Copper Plating Process for Multilayer Boards

　　　　Electroless copper plating is a pivotal process in the fabrication of multilayer printed circuit boards (PCBs), enabling the formation of conductive pathways without the need for an external electric current. This technique is based on a chemical reduction reaction, where copper ions in the plat

Jun 24, 2025 1

Detail

Detailed Explanation of the Backdrill Process for Double-Sided PCBs

　　　　The backdrill process is an important technique used in the manufacturing of double-sided PCBs to improve signal integrity and reduce electrical losses. In a double-sided PCB, when vias are drilled through the board to connect the top and bottom layers, the unused portion of the via barrel (the

Jun 23, 2025 1

Detail

Save Time

Save Money

Save Labour

Free From Worry

Free From Worry