Etching a substrate: processes – Forming groove or hole in a substrate which is subsequently...
Reexamination Certificate
2011-03-29
2011-03-29
Culbert, Roberts (Department: 1716)
Etching a substrate: processes
Forming groove or hole in a substrate which is subsequently...
C216S032000, C029S622000
Reexamination Certificate
active
07914690
ABSTRACT:
A method for manufacturing a metallic keypad panel having a ripple luster. First, a metallic thin plate is prepared. The metallic thin plate is subjected to an etching process, thereby forming a plurality of hollowed portions on the metallic thin plate. The hollowed portions are used to define a pressing region for the keypad and icons for the surface of the pressing region. The metallic thin plate is cut to form a metallic keypad panel having a predetermined shape. An electroplated layer is coated on the surface of the metallic keypad panel. Then, a layer of protective film is adhered on one side surface of the metallic keypad panel. The metallic keypad panel is disposed into a transparent mold. After an ultraviolet curable resin is injected into the mold, a light source illuminates the transparent mold to cure the ultraviolet curable resin in the mold to form a pattern layer. Finally, after the protective film on the other surface of the metallic keypad panel is peeled off, an adhesive layer is applied on the other surface of the metallic keypad panel. An elastic layer having a plurality of protrusions is adhered on the surface of the adhesive layer. Via the above steps, the metallic keypad panel is manufactured completely.
REFERENCES:
patent: 2003/0043995 (2003-03-01), Wolfe et al.
patent: 2009/0133997 (2009-05-01), Kato et al.
patent: 2009/0236209 (2009-09-01), Ishii
patent: 2007-134071 (2007-05-01), None
Hsu Chih-Ho
Taso Kai-Jie
Wu Che-Tung
Culbert Roberts
HDLS IPR Services
Ichia Technologies, Inc.
Shih Chun-Ming
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