Factors That Affect Membrane Switch Performance
Membrane switch performance can be affected by several design, material and assembly-related factors.
Common causes include:
- Moisture entering through edges or tail areas
- Incorrect adhesive selection
- Silver track cracking
- Improper dome placement
- Excessive operating force
- Chemical attack on the overlay
- Poor connector alignment
- Incorrect assembly on the enclosure
Most failures can be prevented through proper material selection, design review and application testing.
Understanding the Operating Environment
Understanding the actual operating environment before starting development is essential for building a reliable membrane keypad.
