What are the information needed before the membrane switch is made?

Membrane switch keypads manufacturer

Membrane switch keypads manufacturer

The following items need to be communicated befor membrane switch is made

Backlighting- A flexible layer within a membrane switch construction that illuminates select areas of the overlay, such as text or graphicsymbols. Examples of backlighting methods are E.L(electroluminescent) or fiber optic. 

Membrane Circuit- Functioning component (sub-layer) of a membrane keypad. Typically made of a silver conductive ink printed on polyester. Also can be a flexible copper circuit, a PCB or polyester printed with other conductive materials. 

Contact Bounce- (Make) – Point at which specified resistance is chieved. 

Dead Front- Printing translucent ink in an area so that the graphic is visible only when backlit. 

Density- The degree to which light transmits through a color or transparent window. The higher the density, the less light will be transmitted. 

Dielectric Strength- The voltage that an insulating material can withstand before breakdown occurs, usually expressed as a voltage gradient (such as volts per mil.) 

E.M.I. (also R.F.I)- Electromagnetic Interference (Radio Frequency Interference.) Radiated energy from electrical devices, lightning and similar sources which interferes with the proper operation of electronic circuitry. 

E.S.D.- Electrostatic Discharge – transfer of high potential electrical charge between objects by contact or through air. 

Files- Information or documentation created electronically by computer. 

Font- A set of characters having a unified design. 

Gloss Level- The degree of shininess of a particular material, usually specified in percentages such as 75% gloss, 90% gloss, and so forth. 

Halftone- Image made of a pattern of various size and shape dots (newspaper photograph) rather than continuous gray. 

Image-Setting- The process by which electronic files are transferred to film or paper directly from the computer (computer onto film technology.) 

L.E.D.- Light Emitting Diode type (such 1206 0805 0603 0402) and colour. 

Membrane keypad- A momentary switching device in which at least one contact is made of a flexible substrate. 

Moisture Resistance- Ability of a material to repel moisture either from air or when subjected to water. 

Non-Tactile Switch- A switch assembly that has a tactile ratio equal to zero.