User's Manual

SEJIN ELECTRON, INC
SEJIN confidential - Copyright© Sejin electron, Inc. 2009.
This Document contains proprietary to Sejin Electron, Inc. Use or disclosure without written
permission from an officer of Sejin is expressly forbidden.
Document number : R-FB-0
Page 6/13
Issued date : 2009-02-11
4.3 Operating Region
ON/OFF
Swithing
region
0.5mm
1.2mm
0.8mm
Total
traval
2.5mm
Bottom end
Top end
ON region
OFF region
4.4 Key-top Deflection
Key-top deflection to on side shall be 0.8mm or less.
4.5 Operating feeling
No definite stickiness or other abnormality shall be allowed when force is applied with a finger to Key-
top center at the rate of 3 times a second.
4.6 Key-top Height Variation
The key top height variation must not greater than 0.5mm when measured between the center to
center of keys next to each other. The measurement will be performed with keys in the home positions.
0.5mm Max
4.7 Tilt
The keys must not exhibit tilt greater than 0.5mm.for the 1x1 key top, 0.6mm for the 1x1.25 key top
and 0.7mm for the 1x1.5 key
A<0.5mm (1x1, 0.75(FUN) key)
< 0.6mm (1x1.25, 1.5 key)
<0.7mm (1x1.75, 4.25 key)