Domes Manufacturers Singapore

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Domes, Switches and Keyboards Manufacturer
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The keyboards of Dome-switches are generally a
hybrid of flat-panel membrane and mechanical
keyboards. They bring two circuit board traces
together under a rubber or silicone keypad using
either metal dome switches or polyurethane formed
domes. The metal domes switches are formed pieces
of stainless steel that, when compressed, give
the user a crisp, positive tactile feedback.
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These metal types of dome switches are very
common, are usually reliable to over 5 million
cycles, and can be plated in nickel, silver or
gold. The rubber dome switches are most commonly
referred to as polydomes and they are formed
polyurethane domes where the bubble inside is
coated with graphite.
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While polydomes are typically cheaper than metal
domes, they lack the crisp snap of the metal
domes, and usually have a lower life
specification. The Polydomes are generally
considered as very silent material but purists
has find them as mushy because the collapsing
dome will not provide much positive response as
metal domes.
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For either metal or polydomes, when a key is
pressed, it collapses the dome, which connects
the two circuit traces and completes the
connection to enter the character. The patterns
present on the PC board are often gold-plated,
but both are commonly used switch technologies in
mass market keyboards today.
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This type of switch technology happens to be most
commonly used in handheld controllers, mobile
phones, automotive, consumer electronics and
medical devices. Dome-switch keyboards are also
called as direct-switch keyboards where a special
case of the dome-switch in the computer keyboard
is the scissor-switch.
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The keys are attached to the keyboard via two
plastic pieces that interlock in a scissor like
fashion, and snap to the keyboard and the key.
The plastic scissor connects the keycap to a
plunger by using a special mechanism in the
process of depressing the rubber dome with a much
shorter travel than the typical rubber dome
keyboard.
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Typically scissor-switch keyboards also employ
3-layer membranes as the electrical component of
the switch. Also they have a shorter travel
distance of 2 mm instead of 3.5 4 mm for
standard dome-switch key switches. These
keyboards are generally quiet and the keys
require little force to press.
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Scissor-switch keyboards are typically slightly
more expensive. Polytech has world-class
practices and serves with the collection of
technology and skills in the manufacturing
process which includes Silicon rubber,
Elastomeric, Metal/Poly dome, Plastic molding,
Spray Painting, Lens and Electronics.
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Together collaborating with their associate
companies to further enhance their most effective
and efficient solution in the entire
manufacturing process, they challenge themselves
to give their customer's the best in Cost,
Quality and Customers Satisfaction.
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To Order Find Out More Information On Domes
Suppliers Please Come And Visit Us Today
Onwards..!
Polytech Component Pte Ltd Contact Us 10 Ubi
Crescent 04-68 Singapore - 408564 Tel 1
65 6742 7738 Tel [phone] Fax
65 6749 7793 Mail enquiry_at_polytech.com.sg We
b http//www.polytech.com.sg/