The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2002
Filed:
Jul. 18, 2001
Dieter Ferling, Stuttgart, DE;
Anca Gutu-Nelle, Stuttgart, DE;
Alcatel, Paris, FR;
Abstract
Electronic components, in particular opto-electronic components, are conventionally mounted onto a submount, on the surface of which there are located contact areas for the electrical contacting of the components. A so-called crosstalk may arise between two components. This interference effect clearly reduces the signal/interference ratio of the message signals and hence the performance of the assembly. Here it is proposed to introduce into the submount ( ), at least beneath the point at which the first contact area ( ) is located, a depression ( ) which is provided with a metal film ( ) and filled with a dielectric, the metal film ( ) being electrically connected to the second, opposite-pole contact area ( ). Hence the field lines are concentrated in the depression which is filled with the dielectric, whereby the metal film which is applied there shields the material of the submount against penetration of the field lines. The creation of a depression has the advantage that the overall height of the new arrangement is preserved in comparison with a traditional arrangement.