STACI Corporation is proud of its expertise in producing Membrane Switch Panels for customers. STACI provides outstanding service and technical support, strong reliability, and quick turnaround of prototype and production parts. In addition, STACI produces moisture proof membrane switches that serve as a cost-effective alternative to other switching mechanisms.

Membrane switches, also called thin film switches, are built from thin polyester film and pressure sensitive adhesive (PSA). Printed Circuit Boards (PCBs) can also be used as the base for a switch.

Membrane switches can be tactile or non-tactile, depending on the design. Tactile switches provide a physical “click” when the user pushes it. Non-tactile switches have longer lives, but lack physical feedback to the user. Rubber keypads can be added to the top of the membrane switch as well.

Membrane Switch Manufacturing Process

• Design:  Using AutoCAD or another drawing program, the switch and overlay portions are developed by STACI’s engineering department.
• Pre-printing
• Material selected and cut
• Silk screen developed
• Ink mixing (color matching)
• Silkscreen:  Printing of the conductive circuit as well as the graphic overlay
• Molding and assembly:  Embossing of the graphic overlay and Polydome circuit, if needed
• Die cutting
• Assembly/Test:  All switch layers are assembled and then 100% electrically tested. STACI checks resistance and continuity.
• Inspection:  A visual inspection is done on all parts, followed by a secondary AQL inspection prior to shipping.

Product specifications

• Tactile or non-tactile operation
• Flat or embossed (raised) type
• Wide range of actuation force options
• Wide range of actuation travel (throw) options
• Silver and carbon contacts
• High life cycle operation - 3 to 10 million cycles depending on switch type selected
• Operating Temperature Range -40° to 85° C
• Termination Options – male or female type, positive or zero-insertion-force
• Other Options – Backlighting with LED’s or EL or fiber optic, integration of SMD components, EMI Shielding, RFI shielding, ESD shielding, environmentally sealed options
• All factories are ISO9000 certified; many are QS9000 certified; and some are TS16949 certified.
• In-house mold/tool design and fabrication capabilities.

Reasons to Choose STACI Membrane Switches

• Material control:  RoHS compliance
• Quick quote response
• Exceptional reliability
• Around-the-clock engineering support
• Dock-to-dock delivery
• Just-in-time delivery using local and/or regional warehouses