Membrane Switch

The main characteristics of membrane switch is: 1, compact and lightweight: General membrane switch weight ranging from a few grams to tens of grams, very easy to carry and disassembly; 2, appearance: the perfect modern printing technology, with the perfect design , you can create any pattern you need; 3, seal: the use of a unique technology that allows the membrane switch has a waterproof, anti-oil, anti-pollution, anti-static interference and other functions; 4, excellent electrical properties: the switching circuit may be carbon paste, silver, copper and other printing, the conductive layer can easily fold; and the resistance can be controlled in any resistance you want, and, using the unique technology, membrane switch can be made even accepting hundreds of thousands of volts high voltage electric shock without damaging its function; 5, low cost: the price of membrane switch some even only a few cents, as opposed to having such a multi-functional electronic devices products in terms of its price advantage is not other similar products It can match. 6, long service life: because the material used in membrane switch has good insulating properties, heat resistance, fracture resistance and high elasticity; and printing patterns are used reverse printing, printing pattern will not be damaged; therefore, membrane switch life in general can be more than three years. Common materials membrane switch each part of a panel on the deck layer is typically less than 0.25MM of PET, PC and so colorless translucent silk sheet made of beautiful patterns and text, because the most important role played panel layer that identity and key role, so the choice of material must have high transparency, high ink adhesion, high flexibility, high toughness and other characteristics. Second, the level of surface plastic glue most important role is the panel layer and circuit layer are closely linked, in order to achieve the effect of sealing and connection, this layer generally require a thickness of between 0.05 --- 0.15MM, with high-strength adhesive and anti-aging sex; in production, generally used in special double-sided adhesive membrane switch, membrane switch requires some waterproof anti-high temperature, surface plastic material must also be used according to the needs of different nature. Third, the control circuit of the upper and lower layers are made of this good performance polyester film (PET) as a switching circuit pattern carrier and on which the special process printing with a conductive paste and conductive carbon paste, it has conductive properties, Its thickness is generally less than 0.05--0.175MM, the most common is to use 0.125MM PET. Fourth, it is in the clip layer and for sealing and connecting role between the upper and lower circuit layer circuit, generally use PET double-sided tape its thickness 0.05--0.2MM range; in the choice of material when this layer should fully consider the overall thickness of the product, insulation, circuit packs keys feel and tightness. Fifth, the back of the adhesive layer using closely related membrane switch and what kind of material with paste, more often used in ordinary double-sided adhesive, 3M adhesive, waterproof glue. Certification: RoHS Type: convex Material: Polyester PET sand surface structure: embossed panel touch-type circuit is formed by: a conductive printed material printed circuit environment: Common