摘要:
An integrated circuit having copper interconnecting metallization (311, 312) protected by a first, inorganic overcoat layer (320), portions of the metallization exposed in windows (301, 302) opened through the thickness of the first overcoat layer. A patterned conductive barrier layer (330) is positioned on the exposed portion of the copper metallization and on portions of the first overcoat layer surrounding the window. A bondable metal layer (350, 351) is positioned on the barrier layer; the thickness of this bondable layer is suitable for wire bonding. A second, organic overcoat layer (360) is surrounding the window so that the surface (360a) of this second overcoat layer at the edge of the window is at or above the surface (350a) of the bondable layer. The second overcoat layer may be spaced (370) from the edge of the bondable metal layer.
摘要:
A metal structure for an integrated circuit, which has copper interconnecting metallization (311) protected by an overcoat layer (320). A portion of the metallization is exposed in a window (301) opened through the thickness of the overcoat layer. The metal structure comprises a patterned conductive barrier layer (330) positioned on the copper metallization, wherein this barrier layer forms a trough with walls (331) conformal with the overcoat window. The height (331a) of the wall is less (between 3 and 20%) than the overcoat thickness (320a), forming a step (340). A plug (350) of bondable metal, preferably aluminum, is positioned in the trough and has a thickness equal to the trough wall height (331a).
摘要:
A metal structure for an integrated circuit, which has copper interconnecting metallization (311) protected by an overcoat layer (320). A portion of the metallization is exposed in a window (301) opened through the thickness of the overcoat layer. The metal structure comprises a patterned conductive barrier layer (330) positioned on the copper metallization, wherein this barrier layer forms a trough with walls (331) conformal with the overcoat window. The height (331a) of the wall is less (between 3 and 20 %) than the overcoat thickness (320a), forming a step (340). A plug (350) of bondable metal, preferably aluminum, is positioned in the trough and has a thickness equal to the trough wall height (331a).
摘要:
A metal structure for a contact pad of an integrated circuit (IC), which has copper interconnecting metallization (311). A portion (301) of this metallization is exposed to provide a contact pad to the IC. A conductive barrier layer (330) is positioned on the exposed portion of the copper metallization. A plug (350) of bondable metal, preferably aluminum between about 0.4 and 1.4 μm thick, is positioned on the barrier layer. A protective overcoat layer (320) surrounds the plug and has a thickness (320b) so that the exposed surface (322) of the plug lies at or below the exposed surface (320a) of the overcoat layer. Optionally, a portion (321) of the overcoat layer between about 0.1 and 0.3 μm wide may overlap the perimeter of the plug.
摘要:
A metal structure for a contact pad of an integrated circuit (IC), which has copper interconnecting metallization (311). A portion (301) of this metallization is exposed to provide a contact pad to the IC. A conductive barrier layer (330) is positioned on the exposed portion o the copper metallization. A plug (350) of bondable metal, preferably aluminum between about 0.4 and 1.4 μm thick, is positioned on the barrier layer. A protective overcoat layer (320) surrounds the plug and has a thickness (320b) so that the exposed surface (322) of the plug lies at or below the exposed surface (320a) of the overcoat layer. Optionally, a portion (321) of the overcoat layer between about 0.1 and 0.3 μm wide may overlap the perimeter of the plug.
摘要:
An integrated circuit having copper interconnecting metallization (311, 312) protected by a first overcoat layer (320), portions of the metallization exposed in windows (301, 302) opened through the thickness of the first overcoat layer. A patterned conductive barrier layer (330) is positioned on the exposed portion of the copper metallization and on portions of the first overcoat layer surrounding the window. A bondable metal layer (350, 351) is positioned on the barrier layer; the thickness of this bondable layer is suitable for wire bonding. A second overcoat layer (360) including insulating silicon compounds is positioned on the first overcoat layer so that the edge (362) of the second overcoat layer overlays the edge of the bondable layer positioned on the portions (321) of the first overcoat layer surrounding the window.
摘要:
FIG. 1 is a front and top perspective view of an exhaust pipe, showing my new design; FIG. 2 is a rear and bottom perspective view thereof; FIG. 3 is another front and top perspective view thereof; FIG. 4 is another rear and bottom perspective view thereof; FIG. 5 is a front elevation view thereof; FIG. 6 is a rear elevation view thereof; FIG. 7 is a left side elevation view thereof; FIG. 8 is a right side elevation view thereof; FIG. 9 is a top plan view thereof; and, FIG. 10 is a bottom plan view thereof. The broken lines in the figures illustrate portions of the exhaust pipe that form no part of the claimed design.
摘要:
A system and method are presented that identify new, modified, unchanged, and deleted files in an incremental backup through a file list maintained on the backup destination. The FileList is a flat file in which file information about each file on a source node is stored sequentially into the file. During a subsequent incremental backup, the FileList is read sequentially from the backup destination and is used to generate a search tree. A hash value based on the file path is the key to the search tree, with the file's modified time and size being hashed together to form the value of the tree's key-value pair. Files are examined on the source and compared to the key-value pairs in the search tree. Status information in the search tree is modified to indicate discovered files. Unmodified status information identifies files that have been deleted since the previous backup.
摘要:
Embodiments of the disclosure provide a method in a source node for transmitting data in an OFDM system in which data are transmitted on frequency bands from the source node to a destination node, the method comprising: selecting a set of frequency bands from available frequency bands in the OFDM system; and transmitting data in frequency domain on the selected set of frequency bands to the destination node. Embodiments of the disclosure further provide a method at a destination node for receiving data in an OFDM system in which data are received on frequency bands from a source node, the method comprising: determining a set of frequency bands of available frequency bands on which data are to be received in frequency domain; and receiving the data on the determined set of frequency bands from the source node. Corresponding apparatuses are also provided.