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Method for a standardized mechanical keying universal socket

IP.com Disclosure Number: IPCOM000007243D
Publication Date: 2002-Mar-06
Document File: 3 page(s) / 27K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a Method for a standardized mechanical keying universal socket. Benefits include improved performance.

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Method for a standardized mechanical keying universal socket

Disclosed is a Method for a standardized mechanical keying universal socket. Benefits include improved performance.

Background

              The disclosed method addresses the problem of design for cost and inventory management flexibility for providing mechanically keyed sockets. Mechanical keying is required by OEM customers to ensure compatibility between processor and board products. The number of pins on a package must equal the number of holes on the socket that the package is paired with. The two devices must have the same pattern configuration for successful mating.

              Conventionally, mismatching is solved by building dedicated cover mold tools for each configuration. The alternative is to shut production down for making a line conversion for each configuration. Besides being costly, these approaches create problems in inventory management and flexibility to address changes in product request demands. An added challenge for socket suppliers is to provide OEM customers with keyed sockets that have other visual aids or attributes. Color and shape variations enable the operator to insert the processors into the required socket and to distinguish one socket configuration from another.

              Socket suppliers conventionally build or modify dedicated tools with distinctive artwork and remove the core pins cover mold tool to create different keying (see Figure 1). Typically, the entire socket cover is molded with a different color polymer material (LCP) for increased socket differentiation.

              Process steps for the conventional socket include:

1.           Mold the cover to exact socket product version.

2.           Mold the base.

3.           Mold or fabricate the actuation mechanism.

4.           Form and plate the contacts.

5.           Assemble base by inserting the contacts into the molded base.

6.           Additional base assembly (if mPGA) by attaching solder spheres to contacts.

7.           Assemble or attach the actuation mechanism to the socket.

8.           Assemble or attach the cover to the socket.

Des...