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Method for an LGA package socket assembly with a threaded socket cap and integrated load ring

IP.com Disclosure Number: IPCOM000019059D
Publication Date: 2003-Aug-27
Document File: 4 page(s) / 119K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a land-grid array (LGA) package socket assembly with a threaded socket cap and integrated load ring. Benefits include improved design simplicity, improved ease of manufacturing, and improved ease of use.

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Method for an LGA package socket assembly with a threaded socket cap and integrated load ring

Disclosed is a method for a land-grid array (LGA) package socket assembly with a threaded socket cap and integrated load ring. Benefits include improved design simplicity, improved ease of manufacturing, and improved ease of use.

Background

         The conventional design uses a multiple-piece socket with an LGA socket portion with ball-grid array (BGA) attachment to motherboards. An external casing, a spring clip/lid socket, and a lever arm provide the required load force on the package (see Figures 1-4).

General description

         The disclosed method is an LGA socket with a screw-type cap and embedded load (spring) ring.

         The key elements of the method include:

•         Screw-top direct socket load mechanism

•         Embedded load ring to apply preload

Advantages

         The disclosed method provides advantages, including:

•         Improved design simplicity due to including two piece parts, a BGA base with LGA contacts and a cap with embedded load ring

•         Improved ease of manufacturing due to molding or extruding most parts

•         Improved ease of use due to the use of threading and stops

•         Improved cost effectiveness due to the use of low-cost materials, such as molded thermoplastics, rather than metals

Detailed description

         The disclosed method is comprised of two piece-parts, a BGA base with LGA contacts and a cap with an embedded load ring. The inner cap edge and base are threaded. The cap is screwed down atop the...