Electrical contact with retaining device for clipping solder ball
AssigneeHon Hai Precision Ind. Co., Ltd.
InventorFang-Chu Liao
Life of this patent
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Abstract
An electrical contact (10) using for electrically connecting a chip module to a printed circuit board includes a base portion (101), an arm portion (102) extending from side of the base portion (101), a retaining device (104) extending downwardly from the base portion (101) for retaining a soldering ball (20). The retaining device further comprises a plurality of clipping portions, said clipping portions forming a retaining space (1044) for receiving the soldering ball jointly, and at least one of said clipping portions defining a guiding surface (1046) and a recess (1045). By above way, steady attachment between the soldering ball and the contact is achieved.
Claims5
An electrical contact, comprising:
- a base portion;
- an arm portion extending from the base portion;
- and
- a retaining device extending downwardly from the base portion for retaining a soldering ball;
- wherein the retaining device further comprises a plurality of clipping portions, said clipping portions forming a retaining space for receiving the soldering ball jointly, and at least one of said clipping portions defining a guiding surface and a recess;
- and wherein
- the plurality of clipping portions comprises a first clipping portion extending downwardly from the base portion and connecting with the base portion, a second clipping portion, and a third clipping portion extending from two sides of the first clipping portion, respectively and vertical to the first clipping portion;
- wherein the first clipping portion, the second clipping portion and the third clipping portion each define a recess.
An electrical contact, comprising:
- a base portion;
- an arm portion extending from side of the base portion;
- and
- a retaining device extending downwardly from the base portion for retaining a soldering ball;
- the retaining device further comprising a plurality of clipping portions, said clipping portions forming a retaining space for receiving the soldering ball jointly, and at least one of said clipping portions defining a guiding surface and a through hole extending therethrough;
- and wherein
- the plurality of clipping portions comprises a first clipping portion extending downwardly from the base portion and connecting with the base portion, a second clipping portion, and a third clipping portion extending from two sides of the first clipping portion, respectively and vertical to the first clipping portion;
- wherein the first clipping portion, the second clipping portion and the third clipping portion each define a through hole.
A contact for use with an electrical connector, comprising:
- a planar retention section extending in a vertical plane;
- a contacting section located above said retention section, said contacting section including a pair of opposite spring arms extending from two opposite sides of said vertical plane for sandwiching a pin type electronic part therebetween;
- and
- a soldering section located below the retention section, said soldering section including a pair of opposite clipping tabs extending from said two opposite sides of the vertical plane to sandwiching a solder ball therebetween;
- wherein
- each of said clipping tabs defines a concave recess in an interior face for compliantly and intimately holding the solder ball;
- wherein another recess is formed in the vertical plane at a same level with the recess in the interior face of each of said clipping tabs to compliantly engage the solder ball;
- and
- wherein the pair of opposite clipping tabs extend in a plane perpendicular to the vertical plane.
Dependencies are inferred from the claim text.