公开(公告)号：US20160126024A1

公开(公告)日：2016-05-05

申请号：US14896405

申请日：2014-11-12

Applicant: Nantong Memtech Technologies Co., Ltd.

Inventor： Huisheng HAN ,  HONGMEI ZHANG ,  YUAN CHEN ,  YANG DING ,  GUOQIANG WU

IPC: H01H1/021 ,  H01H11/04 ,  C25D3/12 ,  C23F1/32 ,  C25D7/00 ,  C23C18/31 ,  C23F1/16 ,  H01H1/06 ,  C25D3/48

CPC classification number: H01H1/021 ,  B32B15/06 ,  B32B15/18 ,  B32B15/20 ,  B32B25/20 ,  B32B2255/06 ,  B32B2255/20 ,  B32B2255/205 ,  B32B2255/28 ,  B32B2307/202 ,  B32B2307/714 ,  B32B2307/75 ,  B32B2457/00 ,  C08J5/12 ,  C23C18/1605 ,  C23C18/1653 ,  C23C18/31 ,  C23F1/16 ,  C23F1/32 ,  C25D3/12 ,  C25D3/48 ,  C25D5/022 ,  C25D5/10 ,  C25D5/12 ,  C25D7/00 ,  H01H1/06 ,  H01H11/04 ,  H01H13/785 ,  H01H2201/032

Abstract: A switch contact element, having a layered structure comprising three layers: the bottom layer is silicone rubber, the middle layer is a continuous base metal sheet layer, and the upper layer is a discontinuous (stripe-shaped, raised-point-shaped or lattice-shaped) precious metal plated layer or a double-metal composite layer of a discontinuous base metal plated layer and a precious metal plated layer. The thickness of the bottom layer is greater than that of the middle layer, the thickness of the middle layer is greater than that of the upper layer, and the thickness of the upper layer meets the conditions that the conductive current is greater than safe current of conductive contacts on a circuit board, and the service life of a switch for the design is ensured.

Abstract translation: 一种开关接触元件，具有包括三层的层状结构：底层是硅橡胶，中间层是连续的基底金属片层，上层是不连续的（条状的，凸点状或格子状的 形）贵金属镀层或不连续贱金属镀层和贵金属镀层的双金属复合层。 底层的厚度大于中层的厚度，中层的厚度大于上层的厚度，上层的厚度满足导电电流大于安全电流的条件 电路板上的导电触点，并且确保了用于设计的开关的使用寿命。

公开(公告)号：US20160372276A1

公开(公告)日：2016-12-22

申请号：US14896403

申请日：2014-09-15

Applicant: NANTONG MEMTECH TECHNOLOGIES CO., LTD

Inventor： Huisheng HAN ,  HONGMEI ZHANG ,  YANG DING ,  ZHIHONG DONG ,  CHENG HUANG

IPC: H01H1/02 ,  C23C18/16 ,  C25D5/48 ,  C25D3/48 ,  C25D3/46 ,  C25D5/02 ,  H01H11/04 ,  C23C18/42

CPC classification number: H01H1/02 ,  C23C18/1605 ,  C23C18/165 ,  C23C18/1689 ,  C23C18/42 ,  C25D3/46 ,  C25D3/48 ,  C25D3/54 ,  C25D5/022 ,  C25D5/12 ,  C25D5/48 ,  H01H1/023 ,  H01H1/06 ,  H01H11/04 ,  H01H2011/046 ,  H01H2201/016 ,  H01H2201/024 ,  H01H2201/03 ,  H01H2229/014 ,  H01H2229/016

Abstract: This invention discloses a preparation method for precious metal switching contact components by means of plating masking, plating and etching processes. The plating masking process is performed by using a plating mask ink with or without a photo exposure machine. Plating of precious metals is performed by electroless plating or electro plating methods. Etching is carried out with etching solutions containing weak organic acids, weak inorganic acids or acidic buffering agents. Improvement of the etched surface gloss and prevention of the side etching are realized with the sulfur-contained compounds. The dust- and oil stain-resistances of the switch contacts are improved by increasing the etching depth. The switch contacts made by this invention are featured with the advantages of good reliability, good resistance to dust and oil stain, short contact bounce time, long service life, low cost of raw materials and so on.

Abstract translation: 本发明公开了一种通过电镀掩模，电镀和蚀刻工艺制备贵金属开关接触元件的方法。 通过使用具有或不具有照相曝光机的电镀掩模油墨进行镀覆掩模处理。 通过化学镀或电镀方法进行贵金属的镀覆。 用含有弱有机酸，弱无机酸或酸性缓冲剂的蚀刻溶液进行蚀刻。 用含硫化合物实现蚀刻表面光泽的改善和侧面蚀刻的防止。 通过增加蚀刻深度可以改善开关触点的防尘防油性。 本发明制造的开关触点具有可靠性好，耐灰尘，油污，触点反弹时间短，使用寿命长，原材料成本低等优点。