发明名称 METHOD OF MOUNTING THUMBWHEEL SWITCH ON PRINTED CIRCUIT BOARD AND HANDHELD ELECTRONIC DEVICE INCORPORATING SAME
摘要 A thumbwheel switch for a handheld electronic device is mechanically and electrically mounted on the substrate of a printed circuit board using SMT with the thumbwheel seated in a cutout in the substrate and with the top surface of the thumbwheel about flush with the top surface of the substrate so that the thumbwheel is ergonomically positioned on the side of the handheld electronic device at the level of the display.
申请公布号 CA2523353(C) 申请公布日期 2011.08.09
申请号 CA20052523353 申请日期 2005.10.12
申请人 RESEARCH IN MOTION LIMITED 发明人 CHEN, CHAO;KYOWSKI, TIMOTHY H.;GRIFFIN, JASON T.
分类号 G06F3/033;G06F15/02;H05K13/04 主分类号 G06F3/033
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