PCB Board Circuit Keypad with Metal Dome Medical Membrane Switches, Silicone Keypads, Silicone Membrane Switches,PET/PC Graphic Overlay
A membrane switch is an electrical switch for turning a circuit on and off. It differs from a mechanical switch. Membrane switch is very thin and soft. The touch surface material usually is PET or PC. The circuit can be PET, FPC or even PCB. Membrane switches are user-equipment interface utilities that allow for the communication of commands from users to electronic devices.

Membrane switch description
A membrane switch typically has 6 or more or less layers. The top layer of a membrane switch is the graphic overlay interface between the user and the machine. The other critical layer is a the circuit layer. It can also be PET, FPC or PCB. All the layers are normally assembled using pressure-sensitive adhesives. Contact between two traces can be made through a printed shorting pad or through a metal dome that stands on legs.

Membrane Keypad Structure
1,4 layers structure: Graphic overlay + Spacer + Circuit(can be PET circuit or FPC circuit) + Back Adhesive
2,6 layers structure: Graphic overlay + Spacer: Dome Retainer + Spacer + Circuit(can be PET circuit or FPC circuit) + Back Adhesive;
3,Other Structure
1. Overlay + Rubber Adhesive + Rubber Keypad + Rubber Adhesive + Retainer + Spacer + Circuit + Back Adhesive;
2. Overlay + Spacer + Retainer + PCB Circuit;
And also there are many other kinds of structures for the interface keypads structure. It based on customer's real needs and we can design the suitable and economical structure for our customer's final application.

Chun Yip electronics can customize the production of Super big size membrane switches, membrane keypads, graphic overlays, membrane circuits, LED backlighting membrane switches, LGF backlighting membrane switches, EL backlighting membrane switches, capacitive membrane switches, rubber keypad membrane switches, FPC circuit membrane switches, PCB circuit membrane switches, metal back panel membrane switches, Acrylic/PC back panel membrane switches,, waterproof membrane switch, anti-UV membrane switch, anti-scratch membrane switch, digital printing membrane switch etc. for all the following application areas:
Instrument and meter -- Measuring instrument,Analytical instruments,Navigation instrument,Medical instruments.
Household appliances -- The remote control,Electronic lock,washing machine,microwave oven,rice cooker,audio and video equipment.
Office system -- telephone,fax machine,photocopier,The calculator.
Computer -- Operating keyboard,monitor,printer,plotter.
Electronic toys -- Electronic organ,recreational machines,Electronic target.

semi-auto screen printing machines

We have 7 semi-auto screen printing machines and 1 large semi-auto screen printing machines to provide reliable screen printing support for all design requirements for our graphic overlay and PET circuit printing.

Screen Printing Room

In addition to eight semi-automatic screen printing machines, Chunyip screen printing room is a 10000 level clean room, which is equipped with film exposure room and ink adjustment room, one Ultraviolet drying machine and one Infrared drying machine. There is also an Curing oven room with three Curing oven

Die Cutting Machine and punch

ChunYip have 2 sets of Die Cutting machines, 3 sets of punch machines, 2 sets of hot press machines and 2 sets of Cutting machines
 

Auto Punching Machine

ChunYip also has a Auto Punching machine can make fast Auto punching process which can increase our efficiency much.

Membrane switch assembly room

The cover layer, gasket and circuit are packaged together to form a complete laminate film switch.

Membrane switch testing room

Testing production of high quality film switch products, equipped with a variety of testing equipment,

We are committed to providing you with the following services:
1. uses silk printing, offset printing, digital printing and other perfect panels
2. produces quality Membrane switches including shrapnel, patch LED, capacitance, resistance, diodes
3. design has anti-static, chemical, ultraviolet quality film switch and control key boards, including scratch, waterproof, which can maintain more than 1 million life in a harsh environment
4. combines quality film switch and control keypad with PCB/FPC/RUBBER KEY/FFC/ metal back plate / plastic housing
5.. Provide planar, convex, shrapnel, film bubble with good feel quality film switch and control key pad
The following are our physical factories and workshops

> Pre-Sale Support:
1) Communicate with customers carefully for all requirements and specifications;
2) Give our design improvement suggestions to customers;
3) Provide several different solutions for our customers to comparision;
4) Design the engineering artwork for customer's approval;
5) Provide relevant materials datasheets and certificates.

> CHUNYIP after-sales service includes:
1)Communicate with customer before the shipment and help customer to select a high cost performance of shipping method;
2)Use the best packing method to ensure the economical shipping fees and also protect the products well;
3)After shipped out the products, we will inform customer in time and tell the express tracking number to them so that they can trace the packages;
4)After customer received goods, follow up the goods quality timely;
5)If the customer met some assembly problems, our engineers can provide the technique support on line or at customer's factory;
6)If the delivered products have quality problems, and if the quality problems were really caused by CHUNYIP, then we can make the replacement production for customer at once and the replacement production will be at the top priority.


I. Membrane switch structure
A, panel: face layer with identification product logo, graphics, control keys and so on;
B, adhesive: double-sided tape connecting panel and line layer;
C, line: conduct line distribution according to the product requirements, so as to achieve some function;
D, back adhesive: double-sided adhesive that fits the film switch and injection shell or other adhesive.

II. Characteristics of the membrane switch
A, shape is beautiful and novel;
B, small volume, thin thickness, light weight, conducive to computer keyboard to light, thin, short, small and other directions;
C, moisture-proof, dust-proof, oil prevention and harmful gases, strong sealing, acid and alkali seismic resistance;
D, long life and No easy bending.

III. Classification of membrane switches
A, flexible film switch: the mask layer, isolation layer and circuit layer of the film keyboard consists of films of different properties;
B, hard film keyboard: the graphics and lines of the switch are made on the common printed circuit complex copper plate;
C, flat film keyboard: The key on the film keyboard indicates the position, shape and size of the key body in different colors.

IV. Application of membrane switch
1, industrial control field: applied in electronic measuring instruments, computer control, digital machine tool, industrial controller, industrial equity device, energy Measurement, automotive electronics, etc.
2, household appliances field: applied in air conditioning, washing machine, induction cooker, microwave oven, rice cooker, soybean milk machine, etc
3, health care devices: for fitness devices, electronic blood pressure meters, treatment instruments, medical equipment, testing equipment, etc.;
4, Consumer Electronics: toy phones, dance blankets, remote controlled cars, other consumer electronics, etc.

V. Printing indicators
1, print size deviation ± 0.10mm, External border unclear aberration ± 0.1mm
2, set color deviation ± 0.11mm/100mm, Insulation ink compound silver slurry line
3, has no loose ink and no incomplete handwriting
4, color aberration is not greater than the secondary
5, shall not be creased or painted
6, transparent window transparent and clean, uniform color, no scratches, pinholes, impurities.

 

FAQ:
1. Are you a manufacturer or a trading company?
A: We are the manufacturer and you are welcome to visit our factory and provide videos and pictures for you to check.

2.What kind of membrane switches we can produce?
A: large film switch, film keyboard, graphic cover, film circuit, LED backlight film switch, LGF backlight film switch, EL backlight film switch, capacitor film switch, rubber film switch, rubber keyboard, FPC circuit film switch, PCB board film switch, metal backlight film switch, acrylic / PC backplane film switch, waterproof film switch, UV film switch, scratch film switch, digital printing film switch, etc.

3.What kind of documentation is required for membrane switches, rubber keyboards, and PCB assembly?
A: membrane switch: requires CorelDraw or Ai or CAD vector drawing required;
Rubber keyboard: the structure needs 3D drawing, graphic printing drawing;
Bacterial files for PCB or FPC, BOM list, test methods;

4.How to place an order and quote?
Information is required as follows:
(1) Drawing, photos, requirements and quantity
(2) Cover layer dimension:custom
Material: PET/PC/FPC/PCB/PMMA/Silicone/Metal
Binder: 3M467/3M468
Button: embed flat metal silicone rubber adhesive
LED: Yes / No
It is best to send us design drawings or samples along with other detailed data and then we will customize the membrane switch to your request.

5.so free sample policy?
(1) Free samples: If you pay the shipping fee, we can provide you with free similar samples.
(2) Custom sample: drawings, requirements and quantity can be provided, we quote.

6.What is our way of transportation?
A: by small weight, transported by FedEx and UPS, DHL, TNT express; by heavy weight, transported by sea or aircraft, and shipped as directed by the customer;

7.How to guarantee after-sales service?
A: We will track the process to ensure smooth shipment to you. If any problems arise, we will offer you the best solution.

8.What are our terms of payment?
A: for new customers, we will be 50% in advance and the rest 50% before shipping. For long-term cooperative customers, our monthly report;

Pls send us your drawing or data sheet then we make production file for your approval.