Patent ID: 7489038
Filing Date: 2009-02-10
Classification: H01L

Abstract:
1. A semiconductor structure comprising: a substrate; a first layer over said substrate, said first layer comprising a first material having a first modulus of elasticity; a first structure formed within said substrate, said first structure having an upper surface; and a stress diverting structure proximate said first structure and within said first layer, wherein said stress diverting structure provides a low mechanical stress region at said upper surface of said first structure when a physical load is applied to said first structure, and wherein said stress diverting structure comprises a second material having a second modulus of elasticity less than said first modulus of elasticity, said second material selectively formed over said upper surface of said first structure for diverting mechanical stress created by said physical load applied to said first structure, and wherein said stress diverting structure comprises a third material having a third modulus of elasticity greater than said first modulus of elasticity, said third material surroundingly encompassing said first structure for diverting mechanical stress created by said physical load applied to said first structure.