Abstract:
A method of making a semiconductor chip assembly includes providing a metal base, a routing line, a bumped terminal and a filler, wherein the routing line is adjacent to the bumped terminal, then mechanically attaching a semiconductor chip to the metal base, the routing line, the bumped terminal and the filler, then forming an encapsulant, then etching the metal base to expose the bumped terminal, and then grinding the bumped terminal to expose the filler.
Abstract:
A semiconductor chip assembly includes a semiconductor chip that includes a conductive pad, a conductive trace that includes a routing line, a bumped terminal and a filler, a connection joint that electrically connects the routing line and the pad, and an encapsulant. The routing line contacts the bumped terminal and the filler and extends laterally beyond the bumped terminal and the filler, and the filler contacts the bumped terminal in a cavity that extends through the bumped terminal.
Abstract:
A semiconductor chip assembly includes a semiconductor chip that includes a conductive pad, a conductive trace that includes a routing line and a metal pillar, a connection joint that electrically connects the routing line and the pad, and an encapsulant. The metal pillar includes tapered sidewalls with first and second sidewall portions and a spike, and the first and second sidewall portions are concave arcs that are adjacent to one another at the spike.
Abstract:
A semiconductor chip assembly includes a semiconductor chip that includes a conductive pad, a conductive trace that includes a routing line and a metal pillar, a connection joint that electrically connects the routing line and the pad, and an encapsulant. The chip and the metal pillar are embedded in the encapsulant, the routing line extends laterally beyond the metal pillar towards the chip, and the metal pillar is welded to the routing line.
Abstract:
A method of making a semiconductor chip assembly includes providing a metal base, a routing line, a bumped terminal and a metal filler, then mechanically attaching a semiconductor chip to the metal base, the routing line, the bumped terminal and the metal filler, then forming an encapsulant, then etching the metal base to expose the bumped terminal, and then grinding the bumped terminal to expose the metal filler.
Abstract:
A three-dimensional stacked semiconductor package includes first and second semiconductor chip assemblies. The first semiconductor chip assembly includes a first chip, a first conductive trace and a first encapsulant, and the first conductive trace includes a first metal pillar. The second semiconductor chip assembly includes a second chip, a second conductive trace and a second encapsulant, and the second encapsulant includes a second aperture. The first metal pillar extends into the second aperture.
Abstract:
A method of connecting a conductive trace to a semiconductor chip includes providing a semiconductor chip, a conductive trace and a metal base, wherein the chip includes a conductive pad, and the conductive trace is disposed between the metal base and the chip, then forming a through-hole that extends through the metal base and exposes the conductive trace and the pad, then forming a connection joint that contacts and electrically connects the conductive trace and the pad in the through-hole, and then etching the metal base, thereby reducing contact area between the metal base and another material. Preferably, the through-hole extends through an insulative adhesive that attaches the conductive trace to the chip, and etching the metal base reduces contact area between the metal base and the connection joint.
Abstract:
A semiconductor chip assembly includes a semiconductor chip that includes first and second opposing major surfaces, wherein the first surface of the chip includes a conductive pad, a substrate that includes first and second opposing major surfaces, wherein the first and second surfaces of the substrate include a conductive terminal and a dielectric base, the conductive terminal extends through the dielectric base to the first and second surfaces of the substrate, a cavity extends from the first surface of the substrate into the substrate, the first surfaces of the chip and the substrate face in a first direction, the second surfaces of the chip and the substrate face in a second direction, and the chip extends into the cavity, a conductive trace in an electrically conductive path between the conductive terminal and the pad, and an adhesive disposed between the conductive trace and the chip, the conductive trace and the substrate, and the chip and the substrate.
Abstract:
A method of manufacturing a semiconductor chip assembly includes providing a semiconductor chip and a conductive metal, wherein the chip includes a conductive pad and the conductive metal includes routing line that is disposed above and overlaps the pad, etching the conductive metal on a side opposite the routing line to expose the routing line, and forming a connection joint that contacts and electrically connects the routing line and the pad.
Abstract:
A method of connecting a conductive trace to a semiconductor chip includes providing a semiconductor chip, a conductive trace and a base, wherein the chip includes a conductive pad, the conductive trace includes a bumped terminal, the base includes a recess, the conductive trace is disposed proximate to the pad, the base contacts and covers the conductive trace on a side opposite the chip, the bumped terminal is in the recess, and the conductive trace and the base are different metals, etching the base to expose the conductive trace, and forming a connection joint that contacts and electrically connects the conductive trace and the pad. Preferably, the bumped terminal is outside a periphery of the chip, and an encapsulant provides compressible mechanical support for the bumped terminal.