摘要:
A method of manufacturing key tops for push button switches is provided, which method includes the step of embossing three dimensional shapes formed in a first mold and/or a second mold into a resin member heated to a predetermined temperature by using the first mold and the second mold to integrally form the resin member into a sheet-like resin member including three dimensionally shaped key tops, with a predetermined gap provided between a first face and a second face of the three dimensionally shaped key top, which respectively face the first mold and the second mold.
摘要:
Embodiments described herein are directed towards a keypad stiffener and a method for manufacturing. The method may include forming a metal plate form. The metal plate form may include a metal grounding plate, at least one detachable island and at least one bridge. A bridge may mechanically connect the metal grounding plate to the detachable island. The method may also include forming a non-conductive molding mechanically coupling the metal grounding plate and the at least one detachable island and electrically disconnecting the detachable island from the metal grounding plate. Furthermore, subsequent to the electrically disconnecting, the at least one detachable island may be electrically floating with respect to the metal grounding plate.
摘要:
A method of manufacturing key tops for push button switches is provided, which method includes the step of embossing three dimensional shapes formed in a first mold and/or a second mold into a resin member heated to a predetermined temperature by using the first mold and the second mold to integrally form the resin member into a sheet-like resin member including three dimensionally shaped key tops, with a predetermined gap provided between a first face and a second face of the three dimensionally shaped key top, which respectively face the first mold and the second mold.
摘要:
The invention relates to a surface covering element having an electrically non-conductive layer, a first electrically conductive layer lying at least on some sections of a first surface of the electrically non-conductive layer, a second electrically conductive layer lying at least on some sections of a second surface of the electrically non-conductive layer, the second surface lying opposite the first surface, at least one through-bore in the electrically non-conductive layer and in the first electrically conductive layer, at least one integrated circuit, positioned in the through-bore or bores, at least one first mechanically flexible contact element which electrically contacts the integrated circuit(s) with the first electrically conductive layer, in addition to at least one second contact element which electrically contacts the integrated circuit(s) with the second electrically conductive layer.
摘要:
Disclosed are a key top (4) to be used for push button switches of a portable electronic device, which key top has a metal sheet (6) with an approximately thin plate shape, and an outer-layer sheet (8a, 8b) made of a flexible material which is connected to one surface or both surfaces of the metal sheet (6), and a key sheet (2) which has the key top (4) and a sheet-like key base of an elastic material connected thereto, and methods of manufacturing the key top and the key sheet.
摘要:
Un commutateur du type à capacitance comprend une paire d'organes à capacitance, comprenant chacun premièrement un matériau isolant (10, 11), deuxièmement un élément conducteur (14, 16) sur une surface du matériau isolant, et troisièmement un film diélectrique (15, 17) sur l'élément conducteur. Au moins l'un des organes à capacitance est mobile. En outre, les organes à capacitance sont supportés en alignement espacé généralement parallèle. Les éléments conducteurs (14, 16) se font face et sont en alignement général les uns avec les autres, et les films diélectriques (15, 17) sont mutuellement adjacents mais espacés les uns des autres. Le mouvement de l'organe à capacitance mobile pour s'engager dans l'autre organe à capacitance amène le film diélectrique (15) sur l'organe à capacitance mobile à s'engager dans l'autre film diélectrique (17) de l'autre organe à capacitance, provoquant une augmentation dans la capacitance entre les éléments conducteurs des organes à capacitance.
摘要:
@ A membrane switch panel has a printed circuit base board (20) carrying bare copper electrical circuitry (26) and contacts (26 & 28). A flexible, non-elastomer, laminar membrane (22) overlays the board (20) and also carries a bare-copper contact (24). An electrically insulating spacer (3) is provided between the board (20) and the membrane, but it is provided with an opening to allow the contact (24) upon local depression of the membrane to bridge the contacts (26 & 28) in the base board (20). The membrane (22) is adhesively sealed to the base board (20) enclosing an atmosphere of limited tarnishing ability for the contacts (20, 26 & 28) to maintain a low contact resistance and allow non-precious metals to be used for contacts.