IP Library Patent Application 12954605
Patent Application
App. No. 12/954,605

GRANULAR VARISTOR AND APPLICATIONS FOR USE THEREOF

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
12/954,605
Abstract

Embodiments described include a non-polymeric voltage switchable dielectric (VSD) material comprising substantially of a grain structure formed from only a single compound, processes for making same, and applications for using such non-polymeric VSD materials.

Claims (34)

1 . A non-polymeric voltage switchable dielectric (VSD) material comprising substantially of a grain structure formed from only a single compound.

2 . The non-polymeric VSD material of claim 1 , wherein the specific compound corresponds to one of zinc oxide, bismuth oxide, tungsten oxide, or cadmium telluride.

3 . A substrate device comprising:

a metal layer;

a layer of non-polymeric voltage switchable dielectric (VSD) material;

wherein the layer of non-polymeric VSD material is formed on the metal layer.

4 . The substrate device of claim 3 , wherein the non-polymeric VSD material is comprised substantially of a grain structure formed from only a single compound

5 . The substrate device of claim 4 , wherein the metal layer includes at least one of copper, silver, nickel, gold, or chrome.

6 . The substrate device of claim 4 , wherein the non-polymeric VSD material is comprised purely of the single compound.

7 . The substrate device of claim 4 , wherein the non-polymeric VSD material is formed from one of zinc oxide, bismuth oxide, tungsten oxide, or cadmium telluride.

8 . The substrate device of claim 3 , wherein the non-polymeric VSD material is formed as an embedded layer within the substrate device.

9 . A substrate device comprising:

one or more conductive layers;

a layer of non-polymeric voltage switchable dielectric (VSD) material;

wherein the layer of non-polymeric VSD material is formed on the metal layer; and

wherein the layer of non-polymeric VSD material is positioned to bridge a gap between one or more electrical elements of the one or more conductive layers and a grounding element.

10 . The substrate device of claim 9 , wherein the non-polymeric VSD material is positioned to horizontally bridge the gap between the one or more electrical elements and the grounding element.

11 . The substrate device of claim 10 , wherein the grounding element includes a via that extends vertically as part of a grounding path.

12 . The substrate device of claim 9 , wherein the non-polymeric VSD material is provided as an embedded layer within the substrate device.

13 . The substrate device of claim 9 , wherein the non-polymeric VSD material is positioned to vertically bridge the gap between the one or more electrical elements and the grounding element.

14 . The substrate device of claim 9 , wherein the non-polymeric VSD material is formed purely of one of zinc oxide, bismuth oxide, tungsten oxide, or cadmium telluride

15 . The substrate device of claim 9 , wherein the substrate device corresponds to a semiconductor package.

16 . The substrate device of claim 9 , wherein the substrate device is a wafer device.

17 . The substrate device of claim 16 , wherein the non-polymeric VSD material is positioned on a ceiling layer of the wafer device.

18 . A method for forming a non-polymeric VSDM material on a target, the method comprising:

applying an energy beam to a varistor material in an amorphic state, so as to crystallize and peel of an exterior layer on which the energy beam is applied;

aggregating grain structures of the varistor material that formed when the varistor material crystallized and peeled off on a target location.

19 . The method of claim 18 , wherein applying an energy beam includes directing a laser onto the material in the amorphic state.

20 . The method of claim 19 , further comprising spinning the material relative to the directed laser.

21 . The method of claim 18 , wherein the mass is comprised of one of zinc oxide, bismuth oxide, tungsten oxide, or cadmium telluride.

22 . The method of claim 18 , wherein the method is performed in a vacuum.

23 . A non-polymeric voltage switchable dielectric (VSD) material formed by a process that comprises:

applying an energy beam to a varistor material in an amorphic state, so as to crystallize and peel of an exterior layer on which the energy beam is applied;

aggregating grain structures of the varistor material that formed when the varistor material crystallized and peeled off on a target location.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2014
From: SHOCKING TECHNOLOGIES, INC.
To: LITTELFUSE, INC.
Reel/Frame 032123/0747 →
SECURITY AGREEMENT Recorded Nov 19, 2012
From: SHOCKING TECHNOLOGIES, INC.
To: LITTLEFUSE, INC.
Reel/Frame 029339/0761 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2011
From: SHI, NING; FLEMING, ROBERT; WU, JUNJUN; KOSOWSKY, LEX
To: SHOCKING TECHNOLOGIES, INC.
Reel/Frame 025768/0362 →