Shielding Frame Suppliers & Exporter serving Paris

Wenzhou Stpete Electronics Technology Co., Ltd. has stood at the forefront of precision component manufacturing for over two decades. Specialized in the development, high-volume production, and worldwide sales of high-reliability electronic connectors and shieldings, we have cemented an exemplary reputation among top-tier enterprises in domestic and international markets, including partners like Huawei and Hisense.

Quality assurance is not a secondary checkbox for St. Peter—it is our guiding industrial philosophy. From early-stage alloy selection to automated stamping, deburring, and high-density tape-and-reel packaging, every process step undergoes rigorous quality control. Backed by certified management systems including ISO 9001, ISO 14001, and OHSAS 18001, we secure high repeatability and low defect rates, allowing French buyers to confidently integrate our components into mission-critical hardware.

Production Capacity and Technical Resources

Our production facilities feature high-speed precision stamping lines, advanced CNC mills, and wire-cut EDM equipment for rapid mold manufacturing. Beyond shielding frames, our product portfolio extends to IF radio-frequency terminals, FCB network jacks, DC power sockets, USB connectors, AV boards, and micro-radiators. With an annual R&D investment exceeding 15 million CNY and a team of 30+ dedicated technical engineers holding 21 patents, we tackle complex shielding geometry challenges, including multi-cavity designs with thermal integration features.

Technical Analysis: Selection and Integration of Shielding Frames

Choosing the correct board-level shielding design is critical for B2B electronics manufacturers. An inadequate design can result in electromagnetic interference (EMI), leading to signal degradation or failing EMC certification tests. Here, we outline the primary technical guidelines and industry trends affecting the European market.

1. Single-Piece vs. Two-Piece Shielding Systems

Design engineers must choose between one-piece and two-piece shielding configurations. One-piece shielding cans are soldered directly to the ground traces on the PCB, providing the most cost-effective and structurally rigid layout. However, they restrict access to components for rework. Two-piece shielding systems consist of a frame soldered to the board and a removable lid that clips securely into place. This design simplifies testing and rework during production and field servicing, and is widely used in high-value telecom and automotive assemblies in Paris and globally.

2. Material Selection and Surface Treatment

Material choices directly impact attenuation levels, weight, and assembly cost:

• Nickel-Silver (Alloy 770): An alloy of copper, nickel, and zinc. Its high corrosion resistance and natural solderability eliminate the need for post-plating, making it a standard choice for high-frequency shielding frames.
• Tin-Plated Cold Rolled Steel: An economical option that offers strong magnetic shielding properties and reliable solderability, ideal for consumer electronics and power supplies.
• Beryllium Copper (BeCu): Commonly used for spring fingers and custom shielding contacts due to its high conductivity and fatigue resistance, though it carries a higher material cost.

3. Coplanarity and Thermal Management

As components shrink, PCB assembly houses face challenges with frame warping during reflow soldering. If a frame's coplanarity exceeds 0.08–0.10 mm, it can lead to open joints or weak solder connections. Our progressive stamping processes keep coplanarity below 0.05 mm. Additionally, multi-cavity shielding frames can be designed with integrated vents or internal thermal pads to dissipate heat from processors, combining thermal management with EMI shielding.