Abstract: The present invention relates to a method of making a hybrid wiring board. In accordance with a preferred embodiment, the method includes: preparing a dielectric layer and a supporting board including a stiffener, a bump/flange sacrificial carrier and an adhesive, wherein the adhesive bonds the stiffener to the sacrificial carrier and the dielectric layer covers the supporting board; then removing the bump and a portion of the flange to form a cavity and expose the dielectric layer; then mounting an interposer into the cavity; and then forming a build-up circuitry that includes a first conductive via in direct contact with the interposer and provides signal routing for the interposer. Accordingly, the direct electrical connection between the interposer and the build-up circuitry is advantageous to high I/O and high performance, and the stiffener can provide adequate mechanical support for the build-up circuitry and the interposer.

Abstract: A method of making a stackable semiconductor assembly that includes a semiconductor device, a heat spreader, an adhesive, a plated through-hole, first build-up circuitry and second build-up circuitry is disclosed. The heat spreader includes a bump and a flange. The bump defines a cavity. The semiconductor device is mounted on the bump at the cavity, electrically connected to the first build-up circuitry and thermally connected to the bump. The bump extends into an opening in the adhesive and the flange extends laterally from the bump at the cavity entrance. The first build-up circuitry and the second build-up circuitry extend beyond the semiconductor device in opposite vertical directions. The plated through-hole extends through the adhesive and provides signal routing between the first build-up circuitry and the second build-up circuitry. The heat spreader provides heat dissipation for the semiconductor device.

Abstract: A thermally enhanced wiring board includes a heat sink, a stiffener and a build-up circuitry. The heat sink extends into an aperture of the stiffener and is thermally connected to the build-up circuitry. The build-up circuitry covers the heat sink and the stiffener and provides signal routing for the stiffener. The stiffener provides signal routing and mechanical support for the build-up circuitry.

Abstract: The present invention relates to a method of making a cavity substrate. In accordance with a preferred embodiment, the method includes: preparing a supporting board including a stiffener, a bump/flange sacrificial carrier and an adhesive, wherein the adhesive bonds the stiffener to the sacrificial carrier; then attaching an interconnect substrate to the supporting board using a dielectric layer; then removing the bump and a portion of the flange to form a cavity and expose the dielectric layer; and then forming a via opening in the dielectric layer to expose a selected portion of the interconnect substrate. A semiconductor device can be mounted on the cavity substrate and electrically connected to the exposed portion of the interconnect substrate. The interconnect substrate provides signal routing for the semiconductor device while the stiffener can provide adequate mechanical support for the interconnect substrate and the semiconductor device.

Abstract: The present invention relates to a semiconductor assembly with a built-in stopper and a method of making the same. In accordance with one preferred embodiment of the present invention, the method includes: forming a stopper on a dielectric layer; mounting a semiconductor device on the dielectric layer using the stopper as a placement guide for the semiconductor device; attaching a stiffener to the dielectric layer; and forming a build-up circuitry that covers the semiconductor device, the stopper and the stiffener and provides signal routing for the semiconductor device. Accordingly, the stopper can accurately confine the placement location of the semiconductor device and avoid the electrical connection failure between the semiconductor device and the build-up circuitry.

Abstract: The present invention relates to a method of making a thermally conductive semiconductor assembly. In accordance with a preferred embodiment, the method includes: providing a chip; providing an interposer that includes a through via, a first contact pad on a first surface and a second contact pad on an opposite second surface; electrically coupling the chip to the first contact pad of the interposer by a conductive bump or a wire; providing a heat sink with a cavity; then attaching the chip and the interposer on the heat sink using an adhesive with the chip inserted into the cavity; and then forming a build-up circuitry on the second surface of the interposer. Accordingly, the heat sink can provide essential thermal dissipation for the embedded chip, and the interposer and build-up circuitry can respectively provide first and second level fan-out routing/interconnection for the embedded chip.

Abstract: The present invention relates to a method of making a hybrid wiring board with built-in stopper and interposer. In accordance with one preferred embodiment of the present invention, the method includes: forming a stopper on a dielectric layer; mounting an interposer on the dielectric layer using the stopper as a placement guide for the interposer; attaching a stiffener to the dielectric layer; and forming a build-up circuitry that covers the interposer, the stopper and the stiffener and provides signal routing for the interposer. Accordingly, the stopper can accurately confine the placement location of the interposer and avoid the electrical connection failure between the interposer and the build-up circuitry.

Abstract: In a preferred embodiment, a wiring board with embedded device, built-in stopper and electromagnetic shielding includes a stopper, a semiconductor device, a stiffener with shielding sidewalls, a first build-up circuitry and a second build-up circuitry with a shielding lid. The first and second build-up circuitries cover the semiconductor device, the stopper and the stiffener in the opposite vertical directions. The shielding sidewalls and the shielding lid are electrically connected to at least one ground contact pad of the semiconductor device by the first build-up circuitry and can respectively serve as effective horizontal and vertical electromagnetic shields for the semiconductor device within the aperture of the stiffener.

Abstract: The present invention relates to a thermally enhanced interconnect substrate and a method of making the same. In accordance with one preferred embodiment, the method includes: forming a stopper on a metal layer of a laminate substrate; removing a selected portion of the metal layer to form a paddle layer; mounting a semiconductor device on the paddle layer using the stopper as a placement guide for the semiconductor device; attaching a stiffener to the laminate substrate; forming first and second build-up circuitries that cover the semiconductor device, the paddle layer and the stiffener at both sides; and providing a plated through-hole that provides an electrical connection between the first and second build-up circuitries. Accordingly, the paddle layer can provide excellent heat spreading, and the stopper can accurately confine the placement location of the semiconductor device and avoid the electrical connection failure between the semiconductor device and the build-up circuitry.

Abstract: A wiring board with built-in metal slugs includes a dielectric hybrid core and build-up circuitries. The metal slugs extend into apertures of a stiffener of the hybrid core and are electrically connected to the build-up circuitry. The build-up circuitry covers the metal slugs and the stiffener and provides signal routing. The metal slugs can serve as power and ground planes for the wiring board.

Abstract: A semiconductor assembly includes a semiconductor device, a through-via interposer, a coreless substrate and a stiffener. The semiconductor device is flip mounted on the interposer, and the interposer is affixed on the coreless substrate by adhesive and extends into an aperture of a stiffener which provides mechanical support for the coreless substrate. The electrically connection between the interposer and the coreless substrate includes bond wire and conductive micro-via. The coreless substrate can provide fan-out routing for the interposer.

Abstract: The present invention relates to an interconnect substrate with an embedded device, a built-in stopper and dual build-up circuitries and a method of making the same. In accordance with one preferred embodiment of the present invention, the method includes: forming a stopper on a dielectric layer; mounting a semiconductor device on the dielectric layer using the stopper as a placement guide for the semiconductor device; attaching a stiffener to the dielectric layer; forming a first build-up circuitry and a second build-up circuitry that cover the semiconductor device, the stopper and the stiffener at both sides; and providing a plated through-hole that provides an electrical connection between the first and second build-up circuitries. Accordingly, the stopper can accurately confine the placement location of the semiconductor device and avoid the electrical connection failure between the semiconductor device and the build-up circuitry.

Abstract: In a preferred embodiment, a wiring board with embedded device and electromagnetic shielding includes a semiconductor device, a core layer, a shielding lid, shielding slots and build-up circuitry. The build-up circuitry covers the semiconductor device and the core layer. The shielding slots and the shielding lid are electrically connected to at least one ground contact pad of the semiconductor device by the build-up circuitry and can respectively serve as effective horizontal and vertical electromagnetic shields for the semiconductor devices.

Abstract: The present invention relates to a thermally enhanced semiconductor assembly and a method of making the same. In accordance with one preferred embodiment, the method includes: forming a stopper on a metal layer; mounting a semiconductor device on the metal layer using the stopper as a placement guide for the semiconductor device; attaching a stiffener to the metal layer; forming a build-up circuitry that covers the stopper, the semiconductor device and the stiffener; providing a plated through-hole that provides an electrical connection between the build-up circuitry and the metal layer; and removing selected portions of the metal layer to form a thermal pad and a terminal. Accordingly, the thermal pad can provide excellent heat spreading, and the stopper can accurately confine the placement location of the semiconductor device and avoid the electrical connection failure between the semiconductor device and the build-up circuitry.

Abstract: A hybrid wiring board includes an interposer, a stopper, a stiffener and a build-up circuitry. The stopper is laterally aligned with and laterally extends beyond peripheral edges of the interposer in lateral directions. The interposer extends into an aperture of the stiffener and is electrically connected to the build-up circuitry. The build-up circuitry covers the stopper, the interposer and the stiffener and provides signal routing for the interposer. The stiffener provides mechanical support, ground/power plane and heat sink for the build-up circuitry.

Abstract: In a preferred embodiment, a wiring board with embedded device and electromagnetic shielding includes a shielding frame, a semiconductor device, a stiffener, a first build-up circuitry and a second build-up circuitry with a shielding lid. The first and second build-up circuitries cover the semiconductor device, the shielding frame and the stiffener in the opposite vertical directions. The shielding frame and the shielding lid are electrically connected to at least one ground contact pad of the semiconductor device by the first build-up circuitry and can respectively serve as effective horizontal and vertical electromagnetic shields for the semiconductor devices within the aperture of the stiffener.

Abstract: A thermally enhanced wiring board with thermal pad and electrical post includes a metal slug, a metal pillar, a patterned interconnect substrate, an adhesive, a build-up circuitry and optionally a plated through hole. The metal slug and the metal pillar extend into apertures of the patterned interconnect substrate and are electrically connected to the build-up circuitry. The build-up circuitry covers the metal slug, the metal pillar and the patterned interconnect substrate and can provide signal routing. The metal slug can provide thermal contact surface, and the metal pillar can serve as power/ground plane or signal vertical transduction pathway.

Abstract: A multi-cavity wiring board includes a coreless substrate, an adhesive, and a stiffener having a plurality of apertures with lateral shielding sidewalls. The coreless substrate covers the stiffener and includes electrical pads exposed from the apertures of the stiffener as electrical contacts for semiconductor devices packaged within the apertures. The aperture sidewalls of the stiffener can serve as effective lateral electromagnetic shields for the semiconductor devices within the apertures.

Abstract: In a preferred embodiment, a semiconductor assembly board with back-to-back embedded devices and built-in stoppers includes an intermediate layer, a first stopper, a first semiconductor device, a first core layer, a second stopper, a second semiconductor device, a second core layer, a first build-up circuitry, a second build-up circuitry and a plated through hole. The first and second semiconductor devices are mounted on opposite surfaces of the intermediate layer using the first and second stoppers as placement guides that are laterally aligned with peripheral edges of the first and second semiconductor devices. The first and second core layers laterally cover the first and second semiconductor devices. The first and second build-up circuitries cover the semiconductor devices and the core layers in the opposite vertical directions and provide signal routing for the first and second semiconductor devices.

Abstract: A semiconductor assembly board includes a supporting board, a coreless build-up circuitry and a built-in electronic device. The supporting board includes a bump, a flange and a via hole in the bump. The built-in electronic device extends into the via hole and is electrically connected to the build-up circuitry. The build-up circuitry extends from the flange and the built-in electronic device and provides signal routing for the built-in electronic device. The supporting board provides mechanical support, ground/power plane and heat sink for the coreless build-up circuitry.