| 512Mb is a threshold in NOR flash memory, and the | | | | NAND flash memory capacity becomes larger and |
| cost increases rapidly if it is higher than 350Mb. In | | | | larger, reaching 32 Gb at most, and promoted by |
| addition, NOR flash memory has applied for limited | | | | eMMC, the smart phone NAND capacity is 1Gb at |
| fields and fewer clients. However, NAND flash | | | | least. |
| memory has more and more cost advantages as | | | | Presently, all smart phones are provided with |
| capacity grows larger, and it has widely applied for | | | | NAND+RAM memory, and around 60% of high-end |
| more clients. Currently, the cell phone market | | | | cell phones have used NAND+RAM memory as well. |
| changes rapidly, and the life cycle of a cell phone is | | | | In general, the medium and low-end cell phones adopt |
| usually less than five years, so NOR’s most | | | | NOR+RAM memory, and most of ultra-low-end cell |
| outstanding advantage, long life, becomes | | | | phones use NOR memory. |
| meaningless as well. Although NOR flash memory cost | | | | Except Apple, Sony Ericsson and Nokia, all smart |
| will decline sharply after the entry of 65nm, Spansion | | | | phone manufacturers all adopt Samsung’s |
| is the sole which engages in NOR field. While in NAND, | | | | high-capacity memory. Toshiba has covered a high |
| the powerful companies such as Samsung, Toshiba, | | | | share in medium-end market, and Nokia’s support |
| Hynix, Micron and Intel all have gathered, and a large | | | | for eMMC has made Toshiba have larger |
| number of researchers will be involved once NAND | | | | development space. The main clients of Numonyx are |
| has met any problems. Spansion, once No.1 in cell | | | | Sony Ericsson, unlicensed cell phone manufacturers in |
| phone memory, has retreated from such field. | | | | China, Apple and manufacturers from Japan. Without |
| NAND will replace NOR flash memory if it is higher | | | | support of RAM, Numonyx NAND+RAM memory has |
| than 350Mb. The majority of manufacturers believed | | | | developed slowly. Spansion is adept in NOR, but |
| that it was not necessary that cell phones are with | | | | serious lack of technologies for NAND and RAM. |
| large-capacity NAND memory since they can rely on | | | | Being the new comers, Micron and Hynix both have |
| external memory card to achieve it. However, when | | | | shown powerful strength in NAND+RAM field, and |
| cell phones with built-in large-capacity NAND memory | | | | they are capable of seizing market share from |
| launched by a small number of manufacturers have | | | | Samsung. Hynix has become Motorola’s supplier, |
| become popular, and others all have successively | | | | and LG is also with great possibility to become |
| entered such field. Now, most of cell phone built-in | | | | another customer. |