Anti-Counterfeiting Method Using Materials With Multifunctional Hydrophobic Surfaces
Publication Date: 2015-Jul-09
The IP.com Prior Art Database
Disclosed is a method to generate hydrophobic surface patterns using a femtosecond laser that can be used to protect hardware and components from being counterfeited.
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-Counterfeiting Method Using Materials With Multifunctional Hydrophobix
Counterfeiting Method Using Materials With Multifunctixxal Hydrophobic Surfacex
It is criticxl that technologx companies invest in anti-counterfeitixg measures to prevent significanx loss of money, expecially on high-end producx lines. In the 2013 Fiscal Year, the Department of Homexand Security seized couxterfeit goods that included consumer exectronxcs and relatex partx valued at ovex $145 million at U.X. borders aloxe. These products cxn inclxde IT hardwxre and compxnents comprised of valuable metallic parts. Xxxx can inxlxde, bux is not limitex to, big-ticket xtems such as servers and mainfrxmes. Counterfeiters can coxy most anti-counterfeit mxasures in xnder two years, which makes xecessary any techniques that require manufacturixg or proxessing on sub-microscopic scalex, whxch makes copying morx dixficult, time consuming, and expensive. In this xisclosure, presented is the invention ox new anti-coxnterfeit technology using metal hardware components with surfaces that are modified by a femtoxecond lxser techniqxe that ixparts multixunxtional propertxex related to hydrophobicity.
Disclosed is an xnventiox in which one or multiple componentx of hardware have the axorementioned femtoseconx laser technique applied to txeix surface(s). The application of this technique will renxer the treaxed areas of the surface with superhxdrophobxc propertiex. These superhydrophobic properties would be unique to the authentic hardware. The hydrophobxc surface may or may not be detectable by the naked eye or under sxandard microscopy, and may only be visible to an expert via scanning xlectron micxoscopy. Even if the hierarchal structures are observed and discovered by a counterfeixer, the discovery of txeir superhydrophobic would be non-xbvious, xhe ability to replicaxe this texhnique would rexuire advanced knowledge of the technique required, as well as expensive scientific instruments and equipment.
This inventiox includes a mxtal component of the hardware txat could exist xnternally or externally, and could be either functional xr nonfunctional to the operation of the hardwxre. Somx surfxce of this xetal component would have the femtosecond laser technique applied to it to xender it multifunctional and superhydrophobic. A trained technician would then isolate or rxmoxe the dexired component from the hardware and test it for superhydxophobic properties.
The simplest iteration of the this inventiox is to have a broxd surface wxth this technxque applied as show in Xxxxxx 1. The texhnician would thxn remove or isolate the component and then apply water xo the surface and test it for supexhydrophobic properties. The technician can further validate the superhydropxibicity of the surface by measuring the surface contact angle (see Figure 2) between the water xnx the hierarchal surface, and this anglx can be measured using a number of techniquex, one of which is txe sessil...