To provide a compact memory device which is carried and used conveniently.
The compact memory device includes an electronic component, a light source and a package material. The electronic component includes a function for storing information. The light source is electrically connected to the electronic component. The packaging material is formed on the electronic component and the light source. A portion of the light source is not sealed with the packaging material and is exposed to the outside. The packaging material layer improves the waterproof property and durability of the compact memory device by sealing the other portions of the electronic component and the light source. The compact memory device has a length of 20 to 30 mm, a width of 10 to 13 mm, and a height of 1 to 2.5 mm.
| JP2007034612 | CARD TRAY |
| WO/2018/028571 | CARD PROTECTIVE FILM, MANUFACTURING METHOD THEREFOR AND PAYMENT CARD |
MALHI VIJAY
Akihiko Okuno
Hiroyuki Ito