IP Library Granted Patent US 8,815,385
Granted Patent B2
US 8,815,385 · App. 11/143,372 · Granted Aug 26, 2014

Controlling peel strength of micron-scale structures

Inventors: Ronald Fearing (Orinda, CA); Kellar Autumn (Portland, OR)
Assignees: The Regents of the University of California; Lewis & Clark College
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Quick Facts
Patent No.
US 8,815,385
App. No.
11/143,372
Granted
Aug 26, 2014
Kind
B2
Abstract

A fabricated microstructure includes a base and one or more nano-structures disposed on one or more portions of the base to adhere to a contact surface. The one or more portions of the base with the one or more nano-structures are located on the base such that, when the one or more nano-structures adhere to the contact surface and an external force is applied to peel the base from the contact surface, the one or more nano-structures in the one or more portions of the base facilitate or resist peeling of the nano-structures from the contact surface.

Claims (10)

1. A fabricated microstructure, comprising:

a substrate; and

an array of seta structures configured to adhere to a contact surface by van der Waals forces between the array of seta structures and the contact surface, wherein the array of seta structures are disposed on the substrate in opposing orientation to resist peeling when the array of seta structures adhere to the contact surface.

2. The fabricated microstructure of claim 1 , wherein each seta structure of the array of seta structures include one or more spatula structures disposed on one or more portions of each seta structure of the array of seta structures, and wherein the one or more spatula structures adhere to the contact surface by van der Waals forces.

3. The fabricated microstructure of claim 2 , wherein spatula structures disposed on each seta structure of the array of seta structures are oriented in the same direction or opposing directions.

4. A fabricated microstructure, comprising:

a substrate; and

an array of seta structures configured to adhere by van der Waals forces to a contact surface by van der Waals forces between the array of seta structures and the contact surface, wherein the array of seta structures are disposed on the substrate in opposing orientation to resist peeling when the array of seta structures adhere to the contact surface;

wherein the array of nano-structures is configured to adhere to a contact surface by van der Waals forces between the array of nano-structures and the contact surface, and without a microinterlocking structure disposed on the contact surface.

5. The fabricated microstructure of claim 1 , wherein the an array of seta structures is configured to adhere to a contact surface by van der Waals forces between the array of seta structures and the contact surface, and without a microinterlocking structure disposed on the contact surface.

Assignments (3)
CONFIRMATORY LICENSE Recorded Jan 6, 2015
From: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 034730/0529 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2005
From: FEARING, RONALD S.
To: REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE
Reel/Frame 016657/0626 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2005
From: AUTUMN, KELLAR
To: LEWIS & CLARK COLLEGE
Reel/Frame 016657/0685 →
Continuity (4)
Continuation In Part 10655271 · Sep 3, 2003
Continuation 09644936 · Aug 23, 2000
Provisional Application 60172731 · Dec 20, 1999
Related Publication 20060078725A1 · Apr 13, 2006