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Air Stream Spreading Tool for High Parallel Chip Manual Testing

IP.com Disclosure Number: IPCOM000238440D
Publication Date: 2014-Aug-26
Document File: 2 page(s) / 629K

Publishing Venue

The IP.com Prior Art Database

Abstract

This publication describes an air stream spreading tool for manual, highly parallel chip testing, which ensures that each site has accurate temp control. This tool is a new air conditioner cover, which adds an air stream spread interlayer in the cover to help spread the air stream uniformly over all test sites. Two positioning dowels are included to fix the cover on a test head.

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Air Stream Spreading Tool for High Parallel Chip Manual Testing

Abstract

This publication describes an air stream spreading tool for manual, highly parallel chip testing, which ensures that each site has accurate temp control. This tool is a new air conditioner cover, which adds an air stream spread interlayer in the cover to help spread the air stream uniformly over all test sites.  Two positioning dowels are included to fix the cover on a test head.

Body

Some chips are sensitive to temperature, but the temperature provided by stream blower is not uniform for all sites during manual testing, which can lead to some units suffering marginal fail and induce quality failure.  We propose an air stream spreading tool to solve this issue during manual testing, make sure the temperature is the same on all test sites like the handler testing. Make the manual testing with stream blower more accurate and accelerate the qualification process. 

We use a manifold during manual testing that is located on load board (LB) in this new method.  The manifold can help air stream spread to all sockets uniformly through its internal channel. It includes two air input holes and many output channels align the sockets. Air from the stream blower can blow into the manifold from two input holes, and then output to all sockets from 8 output channels. But how to make the air from stream blower blow into the two input holes of manifold directly, we need use the new air conditional cover for this purp...