Abstract:
A microelectronic structure includes a semiconductor having conductive elements at a first surface. Wire bonds have bases joined to the conductive elements and free ends remote from the bases, the free ends being remote from the substrate and the bases and including end surfaces. The wire bonds define edge surfaces between the bases and end surfaces thereof. A compliant material layer extends along the edge surfaces within first portions of the wire bonds at least adjacent the bases thereof and fills spaces between the first portions of the wire bonds such that the first portions of the wire bonds are separated from one another by the compliant material layer. Second portions of the wire bonds are defined by the end surfaces and portions of the edge surfaces adjacent the end surfaces that are extend from a third surface of the compliant later.
Abstract:
A microelectronic structure has active elements defining a storage array, and address inputs for receipt of address information specifying locations within the storage array. The structure has a first surface and can have terminals exposed at the first surface. The terminals may include first terminals and the structure may be configured to transfer address information received at the first terminals to the address inputs. Each first terminal can have a signal assignment which includes one or more of the address inputs. The first terminals are disposed on first and second opposite sides of a theoretical plane normal to the first surface, wherein the signal assignments of the first terminals disposed on the first side are a mirror image of the signal assignments of the first terminals disposed on the second side of the theoretical plane.
Abstract:
A microelectronic package can include a substrate and a microelectronic element having a face and one or more columns of contacts thereon which face and are joined to corresponding contacts on a surface of the substrate. An axial plane may intersect the face along a line in the first direction and centered relative to the columns of element contacts. Columns of package terminals can extend in the first direction. First terminals in a central region of the second surface can be configured to carry address information usable to determine an addressable memory location within the microelectronic element. The central region may have a width not more than three and one-half times a minimum pitch between the columns of package terminals. The axial plane can intersect the central region.
Abstract:
A microelectronic assembly can include a circuit panel having first and second panel contacts at respective first and second surfaces thereof, and first and second microelectronic packages each having terminals mounted to the respective panel contacts. Each package can include a microelectronic element having a face and contacts thereon, a substrate having first and second surfaces, and terminals on the second surface configured for connecting the package with an external component. The terminals can include first terminals at positions within first and second parallel grids. The first terminals can be configured to carry address information usable by circuitry within the package to determine an addressable memory location from among all the available addressable memory locations of a memory storage array within the microelectronic element. Signal assignments of the first terminals in the first grid can be a mirror image of signal assignments of the first terminals in the second grid.
Abstract:
A microelectronic package can include a substrate having first and second opposed surfaces, at least two pairs of microelectronic elements, and a plurality of terminals exposed at the second surface. Each pair of microelectronic elements can include an upper microelectronic element and a lower microelectronic element. The pairs of microelectronic elements can be fully spaced apart from one another in a horizontal direction parallel to the first surface of the substrate. Each lower microelectronic element can have a front surface facing the first surface of the substrate and a plurality of contacts at the front surface. A surface of each of the upper microelectronic elements can at least partially overlie a rear surface of the lower microelectronic element in its pair. The microelectronic package can also include electrical connections extending from at least some of the contacts of each lower microelectronic element to at least some of the terminals.
Abstract:
A circuit panel can include contacts exposed at a connection site of a major surface thereof and configured to be coupled to terminals of a microelectronic package. The connection site can define a peripheral boundary on the major surface surrounding a group of the contacts that is configured to be coupled to a single microelectronic package. The group of contacts can include first, second, third, and fourth sets of first contacts. Signal assignments of the first and third sets of first contacts can be symmetric about a theoretical plane normal to the major surface with signal assignments of the respective second and fourth sets of first contacts. Each of the sets of first contacts can be configured to carry identical signals. Each of the sets of first contacts can be configured to carry address information sufficient to specify a location within a memory storage array of the microelectronic package.
Abstract:
A microelectronic package can include a substrate having first and second opposed surfaces, at least two pairs of microelectronic elements, and a plurality of terminals exposed at the second surface. Each pair of microelectronic elements can include an upper microelectronic element and a lower microelectronic element. The pairs of microelectronic elements can be fully spaced apart from one another in a horizontal direction parallel to the first surface of the substrate. Each lower microelectronic element can have a front surface facing the first surface of the substrate and a plurality of contacts at the front surface. A surface of each of the upper microelectronic elements can at least partially overlie a rear surface of the lower microelectronic element in its pair. The microelectronic package can also include electrical connections extending from at least some of the contacts of each lower microelectronic element to at least some of the terminals.
Abstract:
A microelectronic package (10) can include lower and upper package faces (11, 12), lower terminals (25) at the lower package face, upper terminals (45) at the upper package face, first and second microelectronic elements (30) each having memory storage array function, and conductive interconnects (15) each electrically connecting at least one lower terminal with at least one upper terminal. The conductive interconnects (15) can include first conductive interconnects (15a) configured to carry address in formation, signal assignments of a first set (70a) of the first interconnects having (180) rotational symmetry about a theoretical rotational axis (29) with signal assignments of a second set (70b) of first interconnects. The conductive interconnects (15) can also include second conductive interconnects (15b) configured to carry data information, the position of each second conductive interconnect having (180) rotational symmetry about the rotational axis (29) with a position of a corresponding no-connect conductive interconnect (15d).
Abstract:
A semiconductor unit includes a chip having left and right columns of contacts at its front surface. Interconnect pads are provided overlying the front surface of the chip and connected to at least some of the contacts as, for example, by traces or by arrangements including wire bonds. The interconnect pads alone, or the interconnect pads and some of the contacts, provide an array of external connection elements. This array includes some reversal pairs of external connection elements in which the external connection element connected to or incorporating the right contact is disposed to the left of the external connection element incorporating or connected to the left contact. Such a unit may be used in a multi-chip package such as a two-chip package having a first chip facing upwardly and a second chip facing downwardly towards a package substrate, disposed below the chips. The reversed connections simplify routing, particularly where corresponding contacts of the two chips are to be connected to common terminals on the package substrate.
Abstract:
A microelectronic package can include a support element having first and second surfaces and substrate contacts at the first or second surface, zeroth and first stacked microelectronic elements electrically coupled with the substrate contacts, and terminals at the second surface electrically coupled with the microelectronic elements. The second surface can have a southwest region encompassing entire lengths of south and west edges of the second surface and extending in orthogonal directions from the south and west edges one-third of each distance toward north and east edges of the second surface, respectively. The terminals can include first terminals at a southwest region of the second surface, the first terminals configured to carry address information usable by circuitry within the microelectronic package to determine an addressable memory location from among all the available addressable memory locations of the memory storage arrays of at least one of the zeroth or first microelectronic elements.