Patent · US Expired

Tool for making a microstructured plastic mold

US5676983A · kind A · utility

15Cited by

5References

1Claims

0Family size

Assignee

Kernforschungszentrum Karlsruhe GmbH · DE

Inventors

Walter Bacher · Blankenloch, DE
Peter Bley · Blankenloch, DE
Michael Harmening · Hirschberg, DE

Key dates

Filing date	Oct 30, 1996
Grant date	Oct 14, 1997
Priority date	—
Expiry date	Oct 30, 2016

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2059/023
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

For a process of making a microstructured plastic mold from which structures can be formed galvanically, a compound layer, including an electrically conductive and an insulating layer portion, is provided and is heated and impressed into the insulating layer portion, a tool is provided which has microstructured bodies disposed thereon of a height corresponding at least to the thickness of the insulating layer portion and with rough from surfaces having points and ridges adapted to penetrate the electrically insulating layer thereby to expose the electrically insulating layer at the bottom of the cavities formed by microstructured bodies.

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