Patent · US Active

Method of producing a cavity having a porous structure

US11268122B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Thomas Lisec · Itzehoe, DE
Fabian LOFINK · Itzehoe, DE

Key dates

Filing date	Aug 17, 2017
Grant date	Mar 8, 2022
Priority date	—
Expiry date	Feb 1, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB81B2203/0315
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of producing a device includes providing a substrate which has a recess. A multitude of loose particles is introduced into the recess. A first portion of the particles is coated by using a coating process having a depth of penetration which extends from an opening of the recess, along a direction of depth, and into the recess, so that the first portion is connected to form a solidified porous structure. The depth of penetration of the coating process which extends into the recess is set such that a second portion of the particles is not connected by means of the coating, and such that the solidified first portion of the particles is arranged between the second portion of the particles and surroundings of the recess. According to the invention, the second portion of the particles is at least partly removed from the recess.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.