A memory card is disclosed which has a card body (2) having a concavity (9) formed at the forward end thereof in the inserting direction and in which terminals (5) are disposed and projections (10) are formed between the terminals (5) to prevent the terminals (5) from being touched or accessed from outside....http://www.google.com.hk/patents/US6361369?utm_source=gb-gplus-share專利 US6361369 - Memory card, and receptacle for same
