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US 6,307,479 B1Granted
Running indicator for integrated circuit package
AssigneeHarvatek Corporation
InventorBily Wang
Life of this patent
Estimating the term…
Abstract
A light emitting diode (LED) is connected in series with the power supply input pad of an integrated circuit chip. The LED lights up when the power supply is turned on as an indicator that the IC is operating properly.
Claims5
A package for integrated circuit (IC), comprising
- an IC chip;
- a substrate for mounting said IC chip;
- a power input pad on said IC chip for inputting a source of power supply;
- an external lead for connection to said power supply,
- a light emitting diode LED integral with said IC chip, inserted between said external lead and said power input pad, and lighting up from inside said package when current passes through said LED for indicating said IC chip is functioning properly;
- a cover for said package over said IC and said substrate;
- and
- a window in said cover for viewing the light emitted from said LED.
5 more elements
Dependencies are inferred from the claim text.