Electrical connectors – With coupling separator – Nonconducting pusher
Reexamination Certificate
1998-11-24
2001-05-01
Patel, Tulsidas (Department: 2839)
Electrical connectors
With coupling separator
Nonconducting pusher
Reexamination Certificate
active
06224404
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an apparatus for removing an electrical component from contact with a substrate. More specifically, the present invention relates to an apparatus integratable with a socket connector assembly for extracting an electrical component from the socket connector assembly.
2. Brief Description of Earlier Developments
Socket connector assemblies help secure electrical components, such as integrated circuit (IC) chips, to substrates. An array of pins typically extend from the electrical components. The pins can have any arrangement, including a standard pin grid array (PGA) or an interstitial pin grid array (PZA).
One such socket connector assembly is a low insertion force (LIF) assembly. In a LIF assembly, an array of press-fit sockets reside in openings in the insulator housing. The placement of the sockets corresponds to the locations of the pins on the electrical component. The pins of the electrical component are inserted into the sockets for mating. While offering low insertion forces, these assemblies require an extraction force to remove the electrical component from the socket assembly. The force required to extract the electrical component from the socket increases as the number of pins on the electrical component increases.
In order to remove the electrical component from the LIF assembly, current techniques require a separate extraction tool. The special tool grasps the edges of the electrical component for extraction. The use of the extraction tool has several potential disadvantages. First, the user must have the special extraction tool available. Second, the forces imposed on the edges of the electrical component by the tool may damage the electrical component.
Clearly, there is room for improvement in the art.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an apparatus for removing an electrical component from contact with a substrate.
It is a further object of the present invention to provide an apparatus for extracting an electrical component from a socket connector assembly.
It is a further object of the present invention to provide an apparatus integratable with a socket connector assembly.
It is a further object of the present invention to provide an apparatus that removes an electrical component from contact with a substrate without damage to the electrical component.
It is a further object of the present invention to provide an apparatus that distributes forces on a larger area of an electrical component when removing the electrical component from contact with a substrate.
It is a further object of the present invention to provide a self-contained apparatus for removing an electrical component from contact with a substrate.
It is a further object of the present invention to provide an apparatus that removes an electrical component from contact with a substrate without assistance from a special extraction tool.
These and other objects of the present invention are achieved in one aspect of the present invention by an extraction tool comprising: an insulative housing; an electrical component receiving surface for receiving the electrical component thereon; and a socket contacting surface for engaging the socket. Movement of the apparatus generally along the socket also moves the apparatus in a direction generally away from the socket to extract the electrical component from the socket.
These and other objects of the present invention are achieved in another aspect of the present invention by a socket for receiving an electrical component have conductive elements. The socket has an insulative housing; a plurality of apertures extending through the housing and corresponding to the conductive elements of the electrical component; and an extraction device engaging surface adapted to engage an extraction device for removing the electrical component from the apertures.
These and other objects of the present invention are achieved in another aspect of the present invention by a kit including a socket and an extraction device. The kit attaches an electrical component having conductive elements to a substrate in an insertion axis. The socket has a plurality of apertures corresponding to the conductive elements of the electrical component. The extraction device moves relative to the socket between a first position and a second position. The extraction device includes a receiving surface for engaging the electrical component. At the first position, the extraction device allows the conductive elements of the electrical component to reside within the apertures of the socket. At the second position, the extraction device withdraws the conductive elements of the electrical component from the apertures of the socket.
These and other objects of the present invention are achieved in another aspect of the present invention by a method of extracting an electrical component from a socket connector assembly, comprising the steps of: providing a socket connector assembly having a socket; and an extraction device engageable with the socket; providing an electrical component on the socket connector assembly; and moving said extraction device relative to said socket.
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Berg Technology Inc.
Nasri Javaid
Patel Tulsidas
Perman & Green LLP
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