摘要:
A solder bump is formed on a high-topography, electroplated copper pad integrating a first and second passivation layer. A sacrifice layer is deposited over the second passivation layer. The sacrifice layer is lithographically patterned. A via is etched in the sacrifice layer. A solder bump is formed in the via. A portion of the sacrifice layer is removed using the solder bump as a mask. A semiconductor device includes a substrate, an input/output (I/O) pad disposed over the substrate, a first passivation layer disposed over a portion of the I/O pad, a first conductive layer disposed over the first passivation layer, a second passivation layer disposed over the first conductive layer, a sacrifice layer disposed over the second passivation layer, the sacrifice layer having a via, and a solder bump formed in the via, the solder bump used as a mask to remove a portion of the sacrifice layer.
摘要:
A semiconductor device has a substrate with an inductor formed on its surface. First and second contact pads are formed on the substrate. A passivation layer is formed over the substrate and first and second contact pads. An insulating layer is formed over the passivation layer. The insulating layer is removed over the first contact pad, but not from the second contact pad. A metal layer is formed over the first contact pad. The metal layer is coiled on the surface of the substrate to produce inductive properties. The formation of the metal layer involves use of a wet etchant. The second contact pad is protected from the wet etchant by the insulating layer. The insulating layer is removed from the second contact pad after forming the metal layer over the first contact pad. An external connection is formed on the second contact pad.
摘要:
A flip chip semiconductor package has a substrate with a plurality of active devices. A contact pad is formed on the substrate in electrical contact with the plurality of active devices. A passivation layer, second barrier layer, and adhesion layer are formed between the substrate and an intermediate conductive layer. The intermediate conductive layer is in electrical contact with the contact pad. A copper inner core pillar is formed by plating over the intermediate conductive layer. The inner core pillar has a rectangular, cylindrical, toroidal, or hollow cylinder form factor. A solder bump is formed around the inner core pillar by plating solder material and reflowing the solder material to form the solder bump. A first barrier layer and wetting layer are formed between the inner core pillar and solder bump. The solder bump is in electrical contact with the intermediate conductive layer.
摘要:
A method of manufacturing a semiconductor device includes providing a substrate having a first conductive layer disposed on a top surface of the substrate. A high resistivity layer is formed over the substrate and the first conductive layer. A dielectric layer is deposited over the substrate, first conductive layer and high resistivity layer. A portion of the dielectric layer, high resistivity layer, and first conductive layer forms a capacitor stack. A first passivation layer is formed over the dielectric layer. A second conductive layer is formed over the capacitor stack and a portion of the first passivation layer. A first opening is etched in the dielectric layer to expose a surface of the high resistivity layer. A third and fourth conductive layer is deposited over the first opening in the dielectric layer and a portion of the first passivation layer.
摘要:
A wafer level semiconductor package has a substrate and an RF module and baseband module coupled to the substrate with solder bumps. An underfill material is disposed under the RF module and baseband module. A first shielding layer is applied to a first surface of the substrate. A seed layer is deposited on the substrate and RF module and baseband module. A second shielding layer is plated over the seed layer, except over the contact pads on the substrate. The second shielding layer can be made from copper, gold, nickel, or aluminum. The first and second shielding layers substantially cover the wafer level semiconductor package to isolate the baseband module from electromagnetic interference generated by the RF module. The first and second shielding layers are grounded through the substrate.