Methods for forming integrated circuits within substrates

Semiconductor device manufacturing: process – Having integral power source

Reissue Patent

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C438S126000, C257SE21700, C029S846000

Reissue Patent

active

RE040137

ABSTRACT:
delete-start id="DEL-S-00001" date="20080304" ?The invention includes methods for forming integrated circuits within substrates, and embedded circuits. In one aspect, the invention includes a method of forming an integrated circuit within a substrate comprising: a) providing a recess in a substrate; b) printing an antenna within the recess; and c) providing an integrated circuit chip and a battery in electrical connection with the antenna. In another aspect, the invention includes a method of forming an integrated circuit within a substrate comprising: a) providing a substrate having a first recess and a second recess formed therein; b) printing a conductive film between the first and second recesses and within the first and second recesses, the conductive film forming electrical interconnects between and within the first and second recesses; c) providing a first electrical component within the first recess and in electrical connection with the electrical interconnets therein; d) providing a second electrical component within the second recess and in electrical connection with the electrical interconnects therein; and e) covering the first electrical component, the second electrical component and the conductive film with at least one protective cover. In another aspect, the invention includes an embedded circuit comprising: a) a substrate having a recess therein, the recess having a bottom surface and a sidewall surface joined to the bottom surface; b) interconnect circuitry formed on the bottom and sidewall surfaces; and c) an integrated circuit chip within the recess and operatively connected to the interconnect circuitry.delete-end id="DEL-S-00001" ?insert-start id="INS-S-00001" date="20080304" ?Method of forming a radio frequency identification (RFID) device. In one embodiment, a recess is provided in a plastic substrate containing an integrated circuit comprising RFID circuitry. A conductive material extends over a sidewall of the recess and is coupled to the integrated circuit in a first region and to an antenna in a second region. A flexible film may be disposed over the recess, the integrated circuit, and the conductive material.insert-end id="INS-S-00001" ?

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