Author Archives: li
What Is Pressure Sensitive Adhesive and How Does It Work?
Understand pressure sensitive adhesive, tape constructions, tack, peel and shear, plus application and removal limits for electronic switch assemblies. Continue reading →
How Should PCB Mounting Holes Be Designed for Metal Dome Switches?
Learn how to size, place, plate and ground PCB mounting holes without distorting metal dome arrays, blocking vents or shifting keypad alignment. Continue reading →
Momentary vs Latching Switch: What Changes After Release?
Compare momentary vs latching switch action, NO/NC contacts, wiring, electronic latching, power-up behavior, and metal dome selection. Continue reading →
Which Membrane Switch Connector Fits Your Tail and PCB?
Match a membrane switch connector to tail pitch, pin count, contact side, and thickness. Compare ZIF and crimp options, testing, and RFQ requirements. Continue reading →
How Do You Choose a Backlit Membrane Switch?
Choose a backlit membrane switch with LED or LGF lighting. Compare optical stacks, tactile feel, power, prototype tests, and custom quotation requirements. Continue reading →
PIN Pad Metal Dome Switch: How Do You Build a Reliable Key Matrix?
PIN pad metal dome switch design for reliable PIN keypads: prevent adjacent-key activation, define key matrices, verify contacts and prepare an RFQ. Continue reading →
ATM Metal Dome Switch: What Makes an ATM Keypad Reliable?
ATM metal dome switch design for reliable keypads: define load stops, dome-array alignment, sealing, contact behavior, validation and RFQ inputs. Continue reading →
Double Doming Prevention: How to Prevent Dome-Placement Errors?
Double doming prevention for metal dome assembly: compare loose placement, dome arrays, tape-and-reel, fixtures and force-test checks that stop errors. Continue reading →
Metal Dome Venting and Air-Path Design
Metal dome venting and air-path design for dome arrays: route spacer channels, protect sealed keypads, define drawings and validate assembled switches. Continue reading →
Dome Sheets for Smart Card Readers: What Should Engineers Specify?
Dome sheets for smart card readers: specify PET carrier, metal domes, PCB pads, force, venting, adhesive, ESD, validation and RFQ inputs. Continue reading →