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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) / 82K

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 ...