capacitive switches factoryContract ManufacturingReasonable design

Product Details

Membrane switches and user interface membrane keypads technology in China mainland. LUPHITOUCH is also an ISO9001, ISO13485, ISO14001, and OHSAS18001, certified manufacturer. Our capacitive touch membrane keypad consists of one or more capacitive touch buttons.

We print the capacitive touch buttons/sensors on PET circuit with the transparent conductive ink. We also use ITO etching technology to make the capacitive touch buttons/sensors.
Through the customized IC chip to control the touch function wanted. Except for the capacitive touch keypads we also manufacture the capacitive touch sensor circuits.

By capacitive touch technology, the overlay materials can be very diverse and not only limited to PET or PC super thin films. For the normal membrane keypads, the function triggered by the mechanical buttons(metal domes or Polydome) and also the common membrane keypads only can use PET, PC film for the graphic overlay.




Use a heavy force to press the buttons to make the conductive pads of the Polydome ormetal domes connected to the conductive pads on circuit layer, then become a loop circuit and occur the function. But for the capacitive touch membrane keypads or circuits, it is different.
We use a variety of overlay materials such as thick glass, PMMA, Polycarbonate panels, etc. The material choice is no longer limited to only a very thin film material, on the contrary, the options are not endless.

LuphiTouch,a professional OEM manufacturer of user interface subassembly products.LuphiTouch is located in south of China in Dongguan,and since 2008 the core of its business is manufacturing an export of membrane switches & keypads, capacitive switches, silicone Rubbert keypads, graphic overlays, and touchscreen panels. Besides,they also offer mechanical design and PCBA development, as well as development of single-chip solutions, keypad backlighting, and turnkey assembly. The production of high-tech interface products requires clean and well functioning operations.let's get to know that how LuPhi complies with industry requirements.

The factory has many strengths-we use high quality imported raw materials and have a skillful team of workers,as well as modern production and testing equipment,our facility is certified with ISO 9001,medical ISO13485,environmental ISO14001,health and safety ISO45001, and the production areas are equipped with 10000 and 1000 class cleanrooms.our products obtain main quality certificates for major markets, such as Europe,North America and Australia.

KEY PROCESS OF PRODUCTION

Design: First，the product concept takes shape in the R&D department，where LuPhi's engineers design and create initial samples.before mass production,their PP samples will undergo various function and environmental testing, such as button actuation life testing,high-low temperature constant temperature,and humidity testing,as well as salt-spray & waterproof testing,ink adhesion force testing,click ratio test, and many others.

Once the pre-production samples pass all necessary testing and materials arrive at the factory,production begins.LuPhi uses high-quality imported materials, such as 3M adhesive,Autotex polyester,nikomatic connectors, and many other components.

Material Cutting:

The first step of production starts from raw material cutting- where overlay films,circuit films and adhesive layers are cut by automatic cutting machines with high accuracy.

After that,the cut materials are transferred to a silk screen printing workshop,where first the ink is prepared to match the exact color requirements of the customer, and silkscreens are created for printing.

Silkscreen Printing:

Then films and screens are moved to automatic and semi-automatic silk screen printing machines.

Drying:

Following the printing,semi-finished products,are further passed to a baking treatment in a 12-meter drying tunnel until the ink is completely dried and cured, LuPhi also has 4 drying ovens to increase efficiency at this step.

Embossing:

For many membrane switches with embossed buttons，the printed graphic overlays also undergo embossing in semi-automatic embossing machines.

Assembly:

In the end, all layers of the final products, such as graphic layers, adhesive layers, circuit layers and others are assembled and laminated together, creating the about-to-be final membrane switch.

Punching:

After assembly,products are passed to auto die cutting&high accuracy cutting machines to cut out the membrane switch panels and form the final product shape.

FQC:

At each production step,products are fully inspected with 100% appearance and function check, to ensure that every product received by customers is qualified.

Our QC inspectors check the dimensions, printings, workmanship and electrical functions, which undergo testing twice after the circuit is printed and assembly is finished.

Packing: Once products pass the inspection, they'll be cleaned, packed into inner and expert packaging, and shipped to customers all over the world.

FACTORY AUDIT, SUMMARY:

These have several advantages of the factory-our facility follows : ISO9001, medical ISO13485,environmental ISO14001, health & safety ISO 45001, and production areas are equipped with 10000 class and 1000 class cleanrooms, that guarantees a clean environment for manufacturing. Moreover, LuphiTouch uses high-quality imported raw materials and can support the production of quality membrane switches and touchscreen panels in variety of sizes,designs,and functions.Besides that LuphiTouch have a mature quality control system for monitoring in-line and final product quality, with various appearance and function testing.