摘要:
A method of fabricating an interconnect element may include fabricating a metal layer that overlies a carrier layer and that includes a plurality of metal traces; providing a dielectric element to overlie the metal layer and the carrier layer; providing a plurality of metal posts; and removing the carrier layer to expose the first major surface of the dielectric element and the outer surfaces of the plurality of metal traces.
摘要:
A method for forming a bump structure and a bump structure for conductive interconnection with another element having at least one of microelectronic devices or wiring thereon, used as an electric connection in an electronic circuit, includes the steps of forming a mandrel by steps including forming at least one opening extending through a bump-forming die body in the thickness direction thereof and positioning a bump-forming die lid on a surface of the bump-forming die body so as to cover one end of the opening and to thereby define a bump-forming recess. The bump-forming die body may be comprised of a metal sheet. A metal layer is formed at least on an inner surface of the bump-forming die lid exposed within the bump-forming recess. The mandrel is removed so as to expose the metal layer and form a bump structure.
摘要:
A plurality of multi-layer metal plates (1) each being composed of a bump forming metal layer (2), an etching stop layer (3), and a wiring film forming metal layer (4), and in which a wiring film (4a) is formed from the wiring film forming metal layer and a bump 2a is formed from the bump forming metal layer are prepared, and on a bump forming surface of a multi-layer metal plate, a wiring film of another multi-layer metal plate is overlapped. Such lamination process is repeated in succession for multi-layering. In addition, a polishing machine for multi-layer wiring board (11a) which includes metal plate holding means (13) for holding a metal plate (1a), cutter holding means (25) for holding a cutter (26) above the metal plate, height adjustment mechanism (20) for adjusting the height of the cutter holding means, and cutter parallel moving mechanism (15) for relatively moving the cutter holding means in parallel to the surface of the metal plate is used to conduct polishing.
摘要:
An interconnection element and method for making same is disclosed. The interconnection element may include a plurality of metal conductors, a plurality of solid metal bumps and a low melting point (LMP) metal layer. The solid metal bumps overly and project in a first direction away from respective ones of the conductors. Each bump has at least one edge bounding the bump in at least a second direction transverse to the first direction. The low melting point (LMP) metal layer has a first face joined to the respective ones of the conductors and bounded in the second direction by at least one edge and a second face joined to the bumps. The edges of the bumps and the LMP layer are aligned in the first direction, and the LMP metal layer has a melting temperature substantially lower than the conductors.
摘要:
An interconnect element is provided which includes a dielectric element having a first major surface, a second major surface remote from the first major surface, and a plurality of recesses extending inwardly from the first major surface. A plurality of metal traces are embedded in the plurality of recesses, the metal traces having outer surfaces substantially co-planar with the first major surface and inner surfaces remote from the outer surfaces. A plurality of posts extend from the inner surfaces of the plurality of metal traces through the dielectric element, the plurality of posts having tops exposed at the second major surface. A multilayer wiring board including a plurality of such interconnect elements is also provided, as well as various methods for making such interconnect elements and multilayer wiring boards.
摘要:
A manufacturing method for a wiring circuit board includes the steps of: forming a board on a surface of a metal layer directly or indirectly through an etching barrier layer; forming an insulating film on the surface of the metal layer; polishing the insulating film to an extent to which a top face of the bump is exposed; and forming a solder ball on the top face of the bump.
摘要:
A system management method is disclosed for associating a process object and a process with each node in a tree structure, and operating each node based on the tree structure so as to manage the process object and the process, including: registering a registered user that performs operations for a general node corresponding to the process object or for a function node corresponding to the process; setting the function node as a child node of the general node corresponding to the process object for which the process corresponding to the function node should be performed, and setting the general node as a parent node of the function node; setting registered user operation authority for each registered user; and, when execution of the process corresponding to the function node is requested by the registered user, causing the function node to execute the process only when the process is permitted by the registered user operation authority, of the registered user requesting the process, set in the general node that is a parent node of the function node.
摘要:
A database access control apparatus generates and stores an access key based on a user ID of a user apparatus. Then, the database access control apparatus sends the access key to the user apparatus with an address of a proxy process server apparatus. The user apparatus sends the access key to the proxy process server apparatus when making a database access request, and the proxy process server apparatus sends the access key to the database access control apparatus when making a database process request. When receiving the database process request, the database access control apparatus determines whether an access key same as the access key received from the proxy process server apparatus is stored in the database access control apparatus, and accesses the database only if having the access key.
摘要:
There is provided a flexible circuit board 22 that, when deposited on another flexible circuit board 40, causes no gap to occur between wiring films 4a, 4a, of the flexible circuit board 40. Moreover, a plurality of flexible circuit boards are deposited on one another to provide a flexible multi-layer wiring circuit board having no gaps between the flexible circuit boards and having less bowing. In the flexible circuit board 22, the thickness of a bonding layer 16, 16a, on the opposed side of a bowing metallic member 2, of an inter-layer insulating film 10 where which bumps 6 are formed is greater than the thickness of a bonding layer on the side of metallic member 2. When the flexible circuit board 22 is deposited on the other flexible circuit board 40 to form a flexible multi-layer wiring circuit board 50, the bonding layer 16, 16a can be filled between the wiring films 4a, 4a, so that the flexible multi-layer wiring circuit board 50 has no gaps and a less bowing.
摘要:
A connecting member between wiring films is provided in which: a normal copper foil, which is a general-purpose component and not expensive, or the like can be used as a material; formation of bumps is sufficiently achieved by conducting etching one time; and a necessary number of layers can be laminated and pressed collectively at a time. Bumps, which are formed approximately in a cone-shape, for connecting wiring films of a multilayer wiring substrate are embedded in a second resin film that serves as an interlayer insulating film.