Conductive Silver Ink Printing Membrane Switch Overlay For WIFI Telecommunication Device

Conductive Silver Ink Printing Membrane Switch Overlay For WIFI Telecommunication Device

A membrane switch overlay is a flexible, thin layer that serves as a user interface for electronic devices. It typically consists of several key components:

1. Graphic Layer: This top layer features printed graphics, symbols, and labels that indicate the function of each button or area. It is usually made of durable materials such as polyester or polycarbonate.

2. Spacer Layer: This layer separates the graphic layer from the circuit layer. It includes adhesive and may have cutouts that allow for tactile feedback when buttons are pressed.

3. Circuit Layer: This layer contains the conductive traces that create the electrical connections. It can be made from materials like silver or carbon, allowing the switch to register when a button is pressed.

4. Adhesive Backing: The entire assembly often has an adhesive backing to facilitate easy attachment to the device's surface.

Key Features

• Design Flexibility: Membrane switch overlays can be customized in terms of size, shape, and graphics.
• Water and Dust Resistance: They can be designed to be sealed, protecting the internal components from moisture and debris.
• Lightweight and Thin: Their low profile makes them ideal for compact devices.

Applications

Membrane switch overlays are commonly used in:

• Consumer electronics (e.g., microwaves, ovens)
• Medical devices
• Industrial equipment
• Automotive controls

Specification:

1)Material (for front or face overlay)

Polyester:

1.Highly versatile for embossing

2.Highly resistant to chemicals

3.Better durability

4.For internal and external use, UV resistance

Polycarbonate:

1.Different surface(Glossy, Matt) and thickness(From 0.12mm~2mm)

2. cost-effective in price

3.For internal and external use

2) Embossing

Rim embossing/pillow embossing/dimple embossing

Graphic overlays can be embossed in order to insert domes/LED, leave space for mechanical keys/LED and provide tactile indications and better tactile feeling.

3)Windows(for display function)

1. print different colors windows, As transparent grey/Red/green window for display

2. Clear/Transparent window for LCD display

2. Matt/semi-transparent window for LED

4)Keys/buttons

Tactile keys---with metal dome or poly dome

Non-tactile--silver printing dots with flat key

5) Embeded LEDs

Small, brilliant lights only about 0.02’’ in height. Avaliable in several vibrant colors.

LED colors: white, yellow, orange, green, red, or double colors LED.

6)Cable

It is an extension of the printed circuit and is used to communicate with your device.

7)Types of connector

1.Zero insertion force (ZIF) connector; 2.Female connector; 3.male connector

8) EMI / RFI / ESD Shielding

use an aluminum foil shielding / a clear ITO electrical conductive polyester

9)Adhesive

mostly used are 3M-double-side glue

10)Backplate-

in aluminum, polycarbonate, acrylic, PCB

Product index:

Operating voltage: 35V DC

Operating current: 100mA 1W

Contact resistance: < 100 Ohms

Open circuit resistance: ≥ 10MΩ at 100V

Operating temperature: Flat/Metal dome:-20°c to +80°c

Storage temperature: Flat/Metal dome:-40°cto +80°c

Life expectancy Flat type≥5,000,000 times Tactile type≥1,000,000 times

Switch stroke: 0.1 to 0.6mm

Contact bounce: 5 to 30ms

Actuation force tolerance: +/- 20 to 45g

Tactile ratio: FC > 40%

Operating humidity: up to 95% RH

Female, male connector, solder pins and heat seal connectors are available

About Taida.pdf


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Application:

FAQ:

Taida is a factory and was founded in the 2010 year in China, which focus on the professional design and manufacture of Membrane Switch and Graphic overlays (including different many kinds membrane switch and graphic overlay ,such like LED ,FPC circuit ,waterproof and tactile ,PMMA ,protective film and so on )manufacturers,

Experience:

Taida and engineers have Highly over 15 years experienced on Membrane switch and graphic overlay designs, 500+ customers from worldwide such like USA,UK ,Germany and others , 1000+ new designs per year

Factory Strength and Production Capacity:

Over 2000 square meters of modern plant, spacious and bright clean workshop; more than 25 full Automatic and Semi-Automatic printing machine and other professional Automation equipment,such like testing machine ,UV machine and so on , Taida’ capability has reached 300, 000PCS/month in a very short period since company established.

Quality Control and Ensure :

Taida has got certification of ISO9001: 2000, and also the accreditation for RoHS ,REACH ,UL SGS to meet customer′s requirements.All workers are fully trained before going to production line.and Ensure 100% testing and inspecting before shipping .

Speed & Efficiency:

Concept to Design: < 3 business days

Goods lead time : 12-15 days

Rapid Prototyping: 4-7 days

Overseas Manufacturing

Utilized for larger production volumes and to ensure we can offer the most competitive pricing and Fast lead time to our customers