Abstract: A solderless surface mount card edge connector is presented. In one embodiment, a connector is attached to a printed circuit board 53. The connector includes a plurality of contacts and extrusions. A daughter board includes a rigid portion on which are attached a series of fingers. When the rigid portion of the daughter board is placed within the connector, the plurality of contacts are pressed downward and establish electrical contact with electrical regions on the mother board. Also, the downward force is transferred by the contacts into horizontal pressure so that electrical contact is established between the plurality of contacts and the series of fingers. In order to maintain the pressure two metal threaded spacers are pinned to the daughter board and fastened to the mother board via screws. Once tightened the assembly is protected from dislodging, even under vibration. The downward pressure, and thus electrical contact, is maintained.

Abstract: A keyboard switch assembly is disclosed which utilizes a new switch design for providing tactile feedback to the user while nevertheless permitting long switch life. The keyboard switch assembly provides adjustable touch control to the user via a mechanical adjustment means while requiring minimal key travel. The "sandwich" arrangement of the dome and the membrane switch isolates the contacts from contamination upon activation resulting in long switch life. Furthermore, integration of all the parts in the assembly of this keyboard switch makes this keyboard more competitive and cost effective.