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Plug and Play JLSI Test Handler Conversion Kit for Quick Package Conversion Between Different Packaging Sizes

IP.com Disclosure Number: IPCOM000008974D
Publication Date: 2002-Jul-26
Document File: 2 page(s) / 201K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that uses a quick latch mechanism and combined package types to improve upon the JLSI package conversion process. Benefits include a reduction in conversion time.

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Plug and Play JLSI Test Handler Conversion Kit for Quick Package Conversion Between Different Packaging Sizes

Disclosed is a method that uses a quick latch mechanism and combined package types to improve upon the JLSI package conversion process. Benefits include a reduction in

conversion time.

Background

Currently, conversions are accomplished by manually switching package types at the turntable, and by removing and replacing a number of screws and brackets at the load and unload slide pockets. This creates a lengthy package-to-package conversion time for the JLSI test handler

(i.e. at least four hours per conversion).

Note. The “turntable” is a mechanism in the test handler’s chamber area that pre-soaks the product to the correct test temperature.

General Description

The following are the two key elements of the disclosed method:

 

  • Quick latch mechanism. This mechanism uses two spring latches to hold each of the load and unload slide pockets (see Figure 1). The load and unload slides contain recess holes so that the ball plunger from the spring latch can sit firmly, and hold the pocket in place during operation. To remove and change the pockets, a slight force at the base should be sufficient to overcome the spring tension of the latches. 
  • Combined package types. Two package types are built into the turntable wheel, and a sensor plate unit is introduced for separation (see Figure 2). A screw holds the sensor plate in place during operation. For change over, releasing the screw...