摘要:
The invention provides bumps between a die and a substrate with a height greater than or equal to a height of a waveguide between the die and the substrate. The bumps may be formed on a die prior to that die being singulated from a wafer.
摘要:
A device includes an integrated circuit and a deposited tin in electrical contact with a portion of the integrated circuit. The deposited tin is formed by electrodeposition from a bath. The deposited tin includes a residue characteristic of the bath. The bath includes a bath-soluble tin compound, a strong acid, and a sulfopropylated anionic surfactant. In another aspect, a composition includes between approximately 20 and 40 grams per liter of one of stannous methane sulfonate, stannous sulfate, and a mixture thereof, between approximately 100 and 200 grams per liter of one of methanesulfonic acid, sulfuric acid, and a mixture thereof, and between approximately 1 and 2 grams per liter of one or more polyethyleneglycol alkyl-3-sulfopropyl diethers. In another aspect, a method includes electroplating tin with a current density of greater than approximately 30 mA/cm2 and a plating efficiency of greater than approximately 95%.
摘要翻译:一种器件包括集成电路和与集成电路的一部分电接触的沉积锡。 沉积的锡通过从浴中电沉积形成。 沉积的锡包括浴的特征残留物。 该浴包括溶于水的锡化合物,强酸和磺基丙基化阴离子表面活性剂。 在另一方面,组合物包括约20至40克/升的亚磺酸甲酯磺酸盐,硫酸亚锡及其混合物之间,约100至200克/升甲磺酸,硫酸和混合物之一 和约1至2克/升一种或多种聚乙二醇烷基-3-磺丙基二醚之间。 另一方面,一种方法包括电镀锡,其电流密度大于约30mA / cm 2,电镀效率大于约95%。
摘要:
Through substrate via (TSuV) structures and method of making the same are disclosed herein. In embodiments, TSuV structures are metal filled selectively to avoid forming significant metal overburden on non-via surfaces of the substrate. In certain embodiments, post-fill metal removal/planarization operations are eliminated for reduced process complexity and manufacturing cost. In embodiments, selective metal fill entails selective electroless or electrolytic deposition. Both front side and back side selective deposition methods are described along with features of through substrate via structures made with such methods.
摘要:
Through substrate via (TSuV) structures and method of making the same are disclosed herein. In embodiments, TSuV structures are metal filled selectively to avoid forming significant metal overburden on non-via surfaces of the substrate. In certain embodiments, post-fill metal removal/planarization operations are eliminated for reduced process complexity and manufacturing cost. In embodiments, selective metal fill entails selective electroless or electrolytic deposition. Both front side and back side selective deposition methods are described along with features of through substrate via structures made with such methods.
摘要:
Noble metal may be used as a non-oxidizing diffusion barrier to prevent diffusion from copper lines. A diffusion barrier may be formed of a noble metal formed over an adhesion promoting layer or by a noble metal cap over an oxidizable diffusion barrier. The copper lines may also be covered with a noble metal.
摘要:
A method comprising forming an interconnection opening through a dielectric material to a contact point; and electroplating a interconnection comprising copper in the contact opening using an electroplating bath comprising an alkoxylated sulfopropylated alkylamine. A method comprising forming an interconnection opening through a dielectric material to a contact point; lining the interconnection opening with a barrier layer and a seed layer; and electroplating an interconnection comprising copper in the contact opening using an electroplating bath comprising an alkoxylated sulfopropylated alkylamine.
摘要:
The present invention includes a method of providing a substrate; sequentially forming a seed layer over the substrate and forming a protection layer over the seed layer; and sequentially removing the protection layer and forming a conductor over the seed layer. The present invention further includes a structure having a substrate, the substrate having a device; an insulator disposed over the substrate, the insulator having an opening, the opening disposed over the device; a barrier layer disposed over the opening; a seed layer disposed over the barrier layer; and a protection layer disposed over the seed layer.
摘要:
A method to form copper-cobalt interconnects comprises rinsing a copper substrate with deionized water, heating a mild etchant solution and rinsing the copper substrate with the heated mild etchant solution, heating an electroless plating solution and rinsing the copper substrate with a portion of the heated electroless plating solution, heating a reducing agent solution and mixing another portion of the heated electroless plating solution with the heated reducing agent solution to form a self-catalytic bath, and applying the self-catalytic bath to the copper substrate. The electroless plating solution may contain cobalt ions. The method may further include rinsing the copper substrate with deionized water and a hydrofluoric acid solution after the application of the self-catalytic bath.
摘要:
A method and apparatus for a semiconductor device having a semiconductor device having increased conductive material reliability is described. That method and apparatus comprises forming a conductive path on a substrate. The conductive path made of a first material. A second material is then deposited on the conductive path. Once the second material is deposited on the conductive path, the diffusion of the second material into the conductive path is facilitated. The second material has a predetermined solubility to substantially diffuse to grain boundaries within the first material.