Patent ID: 6387736
Filing Date: 2002-05-14
Classification: H01L

Abstract:
A semiconductor device fabrication method for bonding second and third layers formed of materials having weak adhesion characteristics with respect to each other, said method comprising the steps of:selecting dissimilar materials for forming said second and third layers on a basis of achieving target electrical interaction during operation of finally fabricated circuitry; providing a first layer, including selecting an electrically non-conductive material on a basis of providing said first layer with properties which achieve relatively strong adhesion when in contact with either said second layer or said third layer; forming said second layer on said first layer, said second layer having a first surface in contact with said first layer and having a second surface opposite said first surface, said second layer being formed to include anchoring channels that pass from said first surface of said second layer to said first layer, said second layer being electrically conductive; and depositing said third layer on said second surface of said second layer and into said anchoring channels within said second layer such that said third layer bonds to said first layer, thereby providing structural stability in joining said first, second and third layers.