A carrier for at least one integrated circuit chip card or memory card, such as a plug-in sized SIM card, is preferably formed as a detachable cover fitted to or attached to the housing or battery pack of a portable electronic device. For example, the cover may be formed as a snap-on or slidably detachable...http://www.google.com.tw/patents/US20030085285?utm_source=gb-gplus-share專利 US20030085285 - SIM card carrier
