Abstract:
A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The heat spreader includes a thermal post and a base. The thermal post extends upwardly from the base into a first opening in the adhesive, and the base extends laterally from the thermal post. The conductive trace includes a pad, a terminal and a signal post. The signal post extends upwardly from the terminal into a second opening in the adhesive. The adhesive extends above the base and between the base and the terminal.
Abstract:
A method of making a semiconductor chip assembly includes providing a post, a base, a support layer and an underlayer, wherein the post extends above the base and the support layer is sandwiched between the base and the underlayer, mounting an adhesive on the base including inserting the post into an opening in the adhesive, mounting a conductive layer on the adhesive including aligning the post with an aperture in the conductive layer, then flowing the adhesive upward between the post and the conductive layer, solidifying the adhesive, then providing a conductive trace that includes a pad, a terminal and a selected portion of the conductive layer, providing a heat spreader that includes the post, the base, the underlayer and a thermal via that extends from the base through the support layer to the underlayer, then mounting a semiconductor device on the post, electrically connecting the semiconductor device to the conductive trace and thermally connecting the semiconductor device to the heat spreader.
Abstract:
A semiconductor chip assembly includes a semiconductor device, a heat spreader, a conductive trace and an adhesive. The heat spreader includes a post and a base. The conductive trace includes a pad, a terminal and a plated through-hole. The semiconductor device is electrically connected to the conductive trace and thermally connected to the heat spreader. The post extends upwardly from the base into an opening in the adhesive, and the base extends laterally from the post. The conductive trace provides signal routing between the pad and the terminal using the plated through-hole.
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 contacts the bumped terminal and the filler, 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 forming an insulative base that covers a peripheral portion of the bumped terminal.
Abstract:
A method of making a semiconductor chip assembly includes mechanically attaching a semiconductor chip to a routing line, forming a thermal conductor on the chip, forming an encapsulant that covers the chip and the thermal conductor, grinding the encapsulant without grinding the thermal conductor or the chip and then grinding the encapsulant and the thermal conductor without grinding the chip such that the encapsulant and the thermal conductor are laterally aligned.
Abstract:
A semiconductor chip assembly includes a semiconductor chip that includes a conductive pad, a conductive trace that includes a routing line and a filler, a connection joint that electrically connects the routing line and the pad, an encapsulant and an insulative base. The routing line contacts the filler and extends laterally beyond the filler, and the filler contacts the insulative base in an aperture that extends through the insulative base.
Abstract:
A method of connecting a conductive trace to a semiconductor chip includes providing a semiconductor chip that includes a conductive pad, providing a conductive trace, then disposing a conductive adhesive between the conductive trace and the chip, thereby mechanically attaching the conductive trace to the chip such that the conductive trace overlaps the pad and the conductive adhesive contacts and is sandwiched between and electrically connects the conductive trace and the pad, and then removing a portion of the conductive adhesive such that the conductive adhesive still contacts and is sandwiched between and electrically connects the conductive trace and the pad and the conductive adhesive no longer electrically connects the conductive trace to a conductor external to the chip.
Abstract:
A method of making a semiconductor chip assembly includes providing a metal base that includes a metal plate and a metal layer, providing a routing line that contacts the metal layer and an etch mask that contacts the metal plate, providing a semiconductor chip that includes a conductive pad, mechanically attaching the chip to the routing line, electrically connecting the routing line to the pad, and etching the metal base using a first wet chemical that is selective of the metal plate and then a second wet chemical etch that is selective of the metal layer and the etch mask to form a pillar from an unetched portion of the metal base that contacts the routing line.
Abstract:
A method of making a three-dimensional stacked semiconductor package includes providing a first semiconductor chip assembly that includes a first chip, a first conductive trace and a first encapsulant, wherein the first conductive trace includes a first metal pillar, providing a second semiconductor chip assembly that includes a second chip, a second conductive trace and a second encapsulant, wherein the second encapsulant includes a second aperture, and then positioning the first and second assemblies such that the first assembly overlaps the second assembly and the first metal pillar extends into the second aperture.
Abstract:
A method of making a semiconductor chip assembly includes providing a metal base, a routing line and a bumped terminal, then mechanically attaching a semiconductor chip to the metal base, the routing line and the bumped terminal, then forming an encapsulant, and then etching the metal base to form a metal pillar that contacts the bumped terminal.