Label：Membrane Switches, Custom Designed, Embossing, Embedded LEDs, Adhesive
Oct 29, 202036988
What temperature and humidity range will this product experience?
What types of contaminants or chemicals will come into contact with this product?
Will this product be subjected to moisture and/or U.V. exposure?
How many contact points will there be?
What type pinout or matrix will be used? (common bus, X-Y matrix)
What closed loop resistance will be acceptable?
Will electrostatic or EMI shielding be necessary?
Will tactile response be required?
To what material will the switch be laminated?
What number of actuations will this product receive?
Will actuation force be a factor?
Will edges be exposed, recessed, or covered with a bezel?
Will embossing be required?
Will there be different parts to the same product? (sets)
How many colors will be needed?
Basic Membrane Switch Construction
Blueprints – Provide drawings that clearly dimension all physical characteristics including color breaks and copy.
Colors – Identify colors by using Pantone (PMS) color number or a color sample. It is important to supply the exact standard for which our color match will be evaluated. Be cognizant of how colors contrast with one another in order to maximize the legibility of the text and symbols.
Artwork – It is possible for customers to supply useable artwork, but they should consult JRPanel first to ensure that proper artwork specifications are met.
Borders and Outlines – Avoid outlines close to cutouts or outer edges, or circles within circles, as any misregistrations will be visually accentuated.
Text – Block lettering provides the most legible copy. Try to use common fonts. When logos or symbols are used, it is best to supply film positives or accurate black and white artwork for JRPanel to scan. Positive letter strokes should be a minimum of .008” and .012” for negative letter stroke.
Raising certain areas of the graphic overlay can offer a unique look to your product as well as provide an important function. JRPanel can emboss graphics in two ways: Metal Dome and Die Pressing.
Creating a blueprint for a membrane switch? Don’t forget these important specifications!
Overall size of part
Diameter of corners
Size and Location of Cutouts
Size and location of windows
Location of tail exit point
Location of graphic entities
Identify “pin 1”
A wide variety of pressure sensitive adhesives are available to bond the membrane switch to a substrate. Selection of the best adhesive will depend upon such factors as environmental conditions, type of substrate (metal, plastic, paint) and smoothness of the surface. In general, low surface energy materials as well as rough surfaces provide more difficult substrates for which to adhere. Here is a guideline of the surface energy of several popular substrates (in dynes/cm).