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US 2006/0141818 A1Published application
Ball grid array contacts with spring action
AssigneeFCI Americas Technology, Inc.
InventorHung Ngo
Life of this patent
Estimating the term…
Abstract
An electrical contact for a ball grid array connector is disclosed for providing improved solder ball connection with a substrate. The contacts may be compressed, enabling solder balls of the connector to abut with the substrate prior to reflow. During reflow, the compression may be relieved by the contact extending further into the solder ball, returning the contact to an uncompressed state.
Claims22
An electrical contact, comprising:
- a tail end defining a sharp edge, wherein the sharp edge extends into a solder ball;
- a spring beam having a first length located adjacent to the tail end, wherein the spring beam compresses to a second length when a compressive force is applied to the contact in a direction parallel with the contact, the second length being shorter than the first length;
- and
- a receptacle portion having a length, the receptacle portion located at an end of the contact opposite the tail end, wherein the length of the receptacle portion remains unchanged when the compressive force is applied to the contact.
1 more element
(canceled)
(canceled)
An electrical connector, comprising:
- a housing;
- an electrical contact received in the housing, the electrical contact comprising:
- a tail end attached to a solder ball, the tail end defining a sharp edge, and
- a spring beam having a first length, wherein the spring beam compresses to a second length when a compressive force is applied on the electrical connector in a direction parallel with the electrical contact, the second length being shorter than the first length;
- and
- a BGA tray comprising,
- a BGA tray housing side that faces away from the solder ball,
- a BGA tray substrate side that faces toward the solder ball, and
- a tapered aperture comprising sidewalls, the tapered aperture extending through the BGA tray from the BGA tray housing side to the BGA tray substrate side, wherein the tapered aperture is larger on the BGA tray substrate side than on the BGA tray housing side.
6 more elements
(canceled)
-20. (canceled)
An electrical contact, comprising:
- a tail end defining a sharp edge, wherein the sharp edge extends into a solder ball;
- a spring beam having a first length located adjacent to the tail end, wherein the spring beam compresses to a second length when a compressive force is applied to the contact in a direction parallel with the contact, the second length being shorter than the first length;
- a connector housing in which the electrical contact is received;
- and
- a receptacle portion having a position relative to the connector housing, wherein the receptacle portion position relative to the connector housing remains unchanged when the compressive force is applied.
2 more elements
(canceled)
Dependencies are inferred from the claim text.