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Method for short circuit detection and temperature monitoring

IP.com Disclosure Number: IPCOM000016492D
Publication Date: 2003-Jun-25
Document File: 2 page(s) / 37K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for short circuit detection and temperature monitoring at multiple test locations. Benefits include improved functionality.

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Method for short circuit detection and temperature monitoring

Disclosed is a method for short circuit detection and temperature monitoring at multiple test locations. Benefits include improved functionality.

Background

        � � � � � Many test platforms have a need to monitor individual device temperatures to ensure that product specifications are not exceeded. Additionally, no short-circuit detector is used to identify when device pins become shorted during placement in the tray-based multiparallel fusing tool.

        � � � � � An I2C bus is used to interface with the Short Circuit Detection/Temperatue Monitoring board. Commands are passed over this bus to the Short Circuit Detection/Temperatue Monitoring board and results are fed back over this same bus.

        � � � � � I2C is a two-wire bus/protocol developed and trademarked by Philips Semiconductors. The I2C Bus Specification version 2.1 is dated January 2000.

General description

        � � � � � The disclosed method detects short circuits and monitors thermal diode temperature for multiple devices at one time.

        � � � � � The key elements of the method include:

•        � � � � I2C-compatible communication interface

•        � � � � 16-Bit data acquisition card (DAC) with a built-in precision current source for thermal diode measurement

•        � � � � Multichannel multiplexer for selecting either a thermal diode read or a short-circuit detection on an individual device

Advantages

        � � � � � The disclosed method provides advantages, including:

•        � � � � Improved functionality due to providing short-circuit detection and temperature monitoring

Detailed description

        � � � � � The disclosed method includes a six-channel short detection and six-channel ...