This invention relates to an electrical connector for electrically connecting two connection objects, wherein “electrical connector” is simply referred to as “connector” hereinafter.
JP-A 2006-310140 discloses a connector which comprises an elastic member having a surface and a conductive film placed on the surface, disclosure of JP-A 2006-310140 being incorporated herein by reference in its entirety. This structure allows that low contact-pressure can maintain electrical connections between the connector and the connection objects without soldering. However, the disclosed connector has a problem that, if a contact portion of the connection object is contaminated by oil, grease or other fluid material, the contaminated contact portion may have a large resistance.
JP-A 2001-257047 or JP-A 2001-266990 disclose a connector different in type from the connector disclosed in JP-A 2006-310140, disclosure of JP-A 2001-257047 and JP-A 2001-266990 being incorporated herein by reference in their entirety. The connector comprises contact portions each having a plurality of projections. The projections clean up solder balls of a connection object when the contact portions of the connector come into contact with the solder balls of the connection object. However, the projections are required to resist abrasion.
USPTO Backgrounds
USPTO Backgrounds