Abstract: A sheet with a built-in IC chip in which mechanical external forces do not significantly impinge on the IC chip and the IC chip does not separate or become damaged, and a tape with a built-in IC chip used for the sheet with a built-in IC chip. In the tape with a built-in IC chip, a part or all of the IC chip is embedded in a tape body.

Abstract: The present invention relates to a sheet with at least one built-in IC chip, the sheet being scarcely influenced by a mechanical external force and being free from loss or damage of the IC chip, and relates to a tape with at least one built-in IC chip used for the sheet with at least one built-in IC chip. The tape with at least one built-in IC chip is characterized in that a part or all of the IC chip 10 is embedded in a recessed portion 20a formed on a tape body, and the tape body 20 includes: a first base material 21; an adhesive layer 22 laminated on the first base material and formed of an adhesive; and a second base material 23 laminated on the adhesive layer; the second base material 23 being removed from the recessed portion 20a and the periphery thereof, and the adhesive in the recessed portion 20a of the adhesive layer 22 being pushed to the periphery thereof, and the pushed adhesive filling in a gap between the periphery of the IC chip 10 and the second base material 23.