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Method for a die-cast heatsink stiffening plate

IP.com Disclosure Number: IPCOM000008476D
Publication Date: 2002-Jun-17
Document File: 3 page(s) / 95K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a die-cast heatsink stiffening plate. Benefits include improved manufacturability and improved thermal performance.

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Method for a die-cast heatsink stiffening plate

Disclosed is a method for a die-cast heatsink stiffening plate. Benefits include improved manufacturability and improved thermal performance.

Background

              The conventional heatsink stiffening plate is an expensive machined part. It cannot be produced in quantities sufficient to meet the demand.

Description

              The disclosed method is a die-cast heatsink stiffening plate. It attaches to the heatsink via four screws (see Figure 1). Attachment tabs are provided for a clip to attach the interposer CPU to the heatsink under a compressive load to maintain bond line thickness (BLT) during shipping when the CPU is not installed on the motherboard (see Figure 2). The stiffening plate also provides gross alignment of the heatsink/CPU assembly to the CPU socket and retention mechanism (RM). The method provides the means of fastening the heatsink to the RM that generates compressive loading onto the CPU package for thermal performance when installed onto a motherboard.

Advantages

              The disclosed method provides advantages, including:

·        Improved ease of manufacturing due to being die cast rather than machined

·        Improved cost effectiveness due to being approximately 7 times cheaper than a machined part

·        Backwards-compatible features

Fig. 1

Fig. 2

Disclosed anonymously