Patent · US Expired

Device and method for marking copper-clad laminates

US6583380B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

Isola AG · DE

Inventors

Christoph Kenn · Ahlten, DE
Theo Schumacher · Düren, DE

Key dates

Filing date	May 23, 2001
Grant date	Jun 24, 2003
Priority date	—
Expiry date	May 23, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2203/161
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A device for marking copper-clad laminates comprises a laser (10), in whose resonator (12) there is an intensity-controlling screen (24), an expanding lens (26) for expanding the laser beam (18) and a focusing lens (30) for focusing the expanded laser beam (28) on the surface of a workpiece (32) in the form of a copper-clad laminate. In the corresponding method for marking copper-clad laminates a laser beam (18) is expanded, and the expanded laser beam (28) is focused on the surface of a workpiece (32) in the form of a copper-clad laminate, with the laser intensity inside laser resonator (12) being controlled by a screen (24).

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