Siemens Aktiengesellschaft

Klaus Hoehn

Martin Honsberg-Riedl

Volker Plickert

Heiner Bayer

Ernst Wipfelder

Guenther Waitl

Ulrike Reeh

Daniel Seeberger

To produce a mechanically firm glued connection between two surface regions of surfaces to be connected, a method is provided which provides each of the surfaces with surface regions having a peak-to-valley thickness of less than 0.3 &mgr;m and the surface regions are brought together in such a way that an intermediate space, which is filled with the glue, is produced therebetween and the space has a small average thickness of less than 0.31 &mgr;m and extends over a surface area of at least 20&times;20 &mgr;m,. The glue is preferably brought into the intermediate space by capillary action and contacts of high quality can be achieved with this method.

Mechanically firm glued connections between surfaces and the method for producing the same

The invention relates to a single-component adhesive system that consists at least of a casting resin, in particular of an epoxy casting resin, and a multivalent alcohol. The low-viscosity adhesive system can be microdosed, is stable in storage, is completely hardenable and is suitable for applications in which the dimensional tolerances are in the &mgr;m and sub-&mgr;m region.

Heat-setting single-component LVA (low-viscosity adhesive) system for bonding in the micro-range

A casting resin system containing epoxyalkylsiloxane is provided for covering optoelectronic components. The casting resin system includes a resin constituent containing a mixture of epoxyalkylsiloxanes and cycloaliphatic epoxy resins. The casting resin system can be hardened with a polycarboxylic acid anhydride as a hardener component to form molding materials that are transparent and color-stable.

Casting resin of epoxyalkylsiloxane, epoxy resin and anhyride

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Taufkirchen, Germany

Klaus Hoehn