{"id":290,"date":"2010-11-04T10:22:16","date_gmt":"2010-11-04T02:22:16","guid":{"rendered":"http:\/\/www.china-metaldome.com\/blog\/?p=290"},"modified":"2010-11-04T10:22:16","modified_gmt":"2010-11-04T02:22:16","slug":"membrane-switch-construction","status":"publish","type":"post","link":"https:\/\/www.china-metaldome.com\/blog\/membrane-switch-construction\/","title":{"rendered":"Membrane Switch Construction"},"content":{"rendered":"

A Membrane Switch<\/strong> can be as simple as a two layer construction<\/strong> or a multi-layered complicated assembly. Regardless, as a momentary switch, must contain a Membrane Layer and a Static Layer.All other layers required for decoration, backlighting, adhesive, tactile response and rigid support are all optional.<\/p>\n

Please see below\u00a0a short explanation of five basic layers of a membrane switch:
\n1. GRAPHIC LAYER:
\nDecoration of a membrane switch is conventionally accomplished with thin, screen printed, polyester or polycarbonate. Elastomer is also a method of decorating a switch assembly and an attractive and functional alternative especially when a three dimensional look and feel is desired.
\n2. MEMBRANE LAYER:
\nAs discussed above the Membrane Layer is thin & pliable and carries at least one of the poles of the switch or carries a conductive shorting pad. This is a required layer. Materials used are: Polyester, Metal Dome<\/a>, Elastomer, Polyimide.
\n3. TACTILE LAYER:
\nThere are several ways to create a tactile response, some are a result of forming another layer. For example a dome embossed polyester overlay means the graphic layer is also the tactile layer. If a poly dome is formed in the membrane layer means it doubles as the tactile layer. Obviously if the tactile layer is absent, you have a non-tactile membrane switch. Options for Tactile Layers are Metal Dome<\/a>, Polyester Dome, Dome Emboss in the Graphic Layer, Elastomer.
\n4. STATIC LAYER:
\nThe Static Layer is rigidly supported and carries at least one of the poles of the switch or carries a conductive shorting pad. The Static Layer is a required component of a membrane switch. Polyester,\u00a0 transparent conductor – ITO, Polyimide, Printed Circuit Board<\/a>.
\n5. RIGID LAYER:
\nIf the static layer is made from a flexible material it must be laminated to a rigid material. Many membrane switches are purchased without a rigid backer and the static layer does not become truly static until it is attached permanently to the instrument housing. Example materials: Aluminum, Steel, Plastic, Glass, Fiberglass<\/p>\n

Ok, you can see the membrane switch construction as below:
\n\"Membrane<\/p>\n","protected":false},"excerpt":{"rendered":"

A Membrane Switch can be as simple as a two layer construction or a multi-layered complicated assembly. Regardless, as a momentary switch, must contain a Membrane Layer and a Static Layer.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[87],"class_list":["post-290","post","type-post","status-publish","format-standard","hentry","category-news","tag-membrane-switch-construction"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t