SELF-LIMITING ELECTRICAL TRIGGERING FOR INITIATING FRACTURE OF FRANGIBLE GLASS

A transient electronic device includes electronic elements (120) (e.g., an SOI- or chip-based IC) and a trigger mechanism (130) disposed on a frangible glass substrate (110). The trigger mechanism (130) includes a switch (150) that initiates a large trigger current through a self-limiting resistive...

Full description

Saved in:
Bibliographic Details
Main Authors GARNER, Sean, LUJAN, Rene A, SMULLIN, Sylvia J, WANG, Qian, WHITING, Gregory, LIMB, Scott J, CHUA, Christopher L
Format Patent
LanguageEnglish
French
German
Published 24.06.2020
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PULSE TECHNIQUE
SEMICONDUCTOR DEVICES
Online AccessGet full text

Cover

More Information
Summary:A transient electronic device includes electronic elements (120) (e.g., an SOI- or chip-based IC) and a trigger mechanism (130) disposed on a frangible glass substrate (110). The trigger mechanism (130) includes a switch (150) that initiates a large trigger current through a self-limiting resistive element (140) in response to a received trigger signal (TS). The self-limiting resistive element (140) includes a resistor portion (142) that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (145) (e.g., a fuse) that self-limits or terminates the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate (110) is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements (120).
Bibliography:Application Number: EP20170182802