Membrane Switch Circuit Solutions - Luen Fung Silicone Rubber Mfg.,Co.

Flexible membrane switch circuit with silver traces for keypad assembly

产品参数

设计选项：

Material Selection: Polyester (PET) or FPC
厚度：0.05-0.13mm
导电油墨：银或碳
层数：上层/下层电路
嵌入式LED/组件
印刷的RFI/ESD屏蔽
ZIP连接
2.54mm间距母插针带连接器
多种背面粘合剂选项

描述

请求报价

描述

At Luen Fung Silicone Rubber Mfg., Co, we specialise in designing and manufacturing high-performance membrane switch circuits tailored to your specific interface and control panel needs. With over two decades of engineering excellence, we deliver flexible, reliable, and compact solutions trusted by global OEMs across industries.

What is a Membrane Switch Circuit?

A membrane switch circuit is a low-profile electrical switch used to turn circuits on or off. It’s made from flexible materials, allowing it to be thin, durable, and lightweight—ideal for electronic interfaces like control panels, medical devices, appliances, and more.

These circuits are printed using conductive inks (such as silver or carbon) on flexible substrates like PET (Polyester) or FPC (Flexible Printed Circuit), depending on your application requirements.

Key Features

触觉反馈: Metal domes or embossed keys provide a satisfying click.

Compact and Slim: Offers a low-profile design perfect for space-constrained applications.

Flexible Layout: Can include multiple buttons, LEDs, domes, and graphic overlays.

Custom Design: Tailored to your needs in terms of size, shape, and functionality.

Enhanced Durability: Water-resistant, dust proof, and long-lasting.

Types of Membrane Circuit

We offer several membrane circuit solutions, including:

Silver Flex Circuit

Printed on polyester using silver conductive ink, this is the most cost-effective and flexible solution. It’s ideal for common interface applications with moderate complexity.

PCB-Based Membrane Circuit

Combines a membrane switch with a rigid PCB (printed circuit board), allowing for LED indicators, tactile domes, and even microcontrollers. Ideal for more complex or high-durability projects.

Flexible Printed Circuit (FPC)

Designed using copper circuits on polyimide substrates, FPCs offer high durability, excellent foldability, and are suitable for advanced, compact electronic products.

Typical Materials

Top Layer: Graphic overlay made from PET or PC with custom printing.
Spacer: Keeps circuit layers apart until a button is pressed.
Circuit Layer: Printed with silver, carbon ink, or copper on PET or polyimide (for FPC).
Back Adhesive: 3M adhesive or similar for mounting the switch onto your product.