摘要:
A method of forming a bump on a substrate such as a semiconductor wafer or flip chip. The method includes the step of providing a semiconductor device having a contact pad and an upper passivation layer and an opening formed in the upper passivation layer exposing a portion of the contact pad. An under bump metallurgy is deposited over the upper passivation layer and the contact pad. A first photoresist layer is deposited in a liquid state so that the first photoresist layer covers the under bump metallurgy. A second photoresist layer is deposited and the second photoresist layer is a dry film photoresist. The unexposed portions of the first photoresist layer are removed. The remaining portions of the first photoresist layers are removed. The electrically conductive material is reflown to provide a bump on the semiconductor device.
摘要:
In accordance with an embodiment a semiconductor component includes an electrically conductive structure formed over a portion of a semiconductor material. An electrical interconnect having a top surface and opposing edges contacts the electrically conductive structure. A protective structure is formed on the top surface and the opposing edges of the electrical interconnect and over a portion of the electrically conductive structure, wherein the protective structure forms a seal that protects the electrical interconnect.
摘要:
A method for manufacturing a semiconductor component that includes the use of multiple layers of photoresist. A first layer of electrically conductive material is formed over a substrate and a first layer of photoresist is formed over the first layer of electrically conductive material. A portion of the first layer of photoresist is removed leaving photoresist having sidewalls separated by a gap. A second layer of electrically conductive material having first and second sidewalls is formed in the gap. A second layer of photoresist is formed over the first layer of photoresist and over the second layer of electrically conductive material. Portions of the second layer of photoresist and the first layer of photoresist are removed to uncover the first and second edges of the second layer of electrically conductive material. A protective structure is formed over the first and second edges of the second electrically conductive material.
摘要:
A wafer-level packaged semiconductor device is described. In an implementation, the device includes one or more self-assembled resilient leads disposed on an integrated circuit chip. Each of the resilient leads are configured to move from a first position wherein the resilient lead is held adjacent to the chip and a second position wherein the resilient lead is extended away from the chip to interconnect the chip to a printed circuit board. A guard is provided to protect the resilient leads when the resilient leads are in the first position. One or more attachment bumps may also be furnished to facilitate attachment of the device to the printed circuit board.
摘要:
A wafer-level packaged semiconductor device is described. In an implementation, the device includes one or more self-assembled resilient leads disposed on an integrated circuit chip. Each of the resilient leads are configured to move from a first position wherein the resilient lead is held adjacent to the chip and a second position wherein the resilient lead is extended away from the chip to interconnect the chip to a printed circuit board. A guard is provided to protect the resilient leads when the resilient leads are in the first position. One or more attachment bumps may also be furnished to facilitate attachment of the device to the printed circuit board.
摘要:
A wafer-level packaged semiconductor device is described. In an implementation, the device includes one or more self-assembled resilient leads disposed on an integrated circuit chip. Each of the resilient leads are configured to move from a first position wherein the resilient lead is held adjacent to the chip and a second position wherein the resilient lead is extended away from the chip to interconnect the chip to a printed circuit board. A guard is provided to protect the resilient leads when the resilient leads are in the first position. One or more attachment bumps may also be furnished to facilitate attachment of the device to the printed circuit board.
摘要:
Methods of forming multi-chip semiconductor substrates include forming a first plurality of dicing streets in a first surface of a first semiconductor wafer having a first plurality of bonding sites thereon and forming a second plurality of dicing streets in a first surface of a second semiconductor wafer having a second plurality of bonding sites thereon. The first surfaces of the first and second semiconductor wafers are bonded together so that the first plurality of dicing streets are aligned with the second plurality of dicing streets and the first plurality of bonding sites are matingly received and permanently affixed within the second plurality of bonding sites. A plurality of bonded pairs of semiconductor chips are then formed by planarizing the second surface of the second semiconductor wafer until the second plurality of dicing streets are exposed.
摘要:
Disclosed are a method for metallization during semiconductor wafer processing and the resulting structures. In this method, a passivation layer is patterned with first openings aligned above and extending vertically to metal structures below. A mask layer is formed and patterned with second openings aligned above the first openings, thereby forming two-tier openings extending vertically through the mask layer and passivation layer to the metal structures below. An electrodeposition process forms, in the two-tier openings, both under-bump pad(s) and additional metal feature(s), which are different from the under-bump pad(s) (e.g., a wirebond pad; a final vertical section of a crackstop structure; and/or a probe pad). Each under-bump pad and additional metal feature initially comprises copper with metal cap layers thereon. The mask layer is removed, an additional mask layer is formed and patterned with third opening(s) exposing only the under-bump pad(s) and solder material is deposited on the under-bump pad(s).
摘要:
A semiconductor component and methods for manufacturing the semiconductor component that includes a double exposure of a layer of photoresist or the use of multiple layers of photoresist. A metallization structure is formed on a layer of electrically conductive material that is disposed on a substrate and a layer of photoresist is formed on the metallization structure. The layer of photoresist is exposed to light and developed to remove a portion of the photoresist layer, thereby forming an opening. Then, a larger portion of the photoresist layer is exposed to light and an electrically conductive interconnect is formed in the opening. The larger portion of the photoresist layer that was exposed to light is developed to expose edges of the electrically conductive interconnect and portions of the metallization structure. A protection layer is formed on the top and edges of the electrically conductive interconnect and on the exposed portions of the metallization structure.
摘要:
A wafer-level packaged semiconductor device is described. In an implementation, the device includes one or more self-assembled resilient leads disposed on an integrated circuit chip. Each of the resilient leads are configured to move from a first position wherein the resilient lead is held adjacent to the chip and a second position wherein the resilient lead is extended away from the chip to interconnect the chip to a printed circuit board. A guard is provided to protect the resilient leads when the resilient leads are in the first position. One or more attachment bumps may also be furnished to facilitate attachment of the device to the printed circuit board.