Smart phones are essential items in our lives, along with its increasing integration, storage requirements are also increasing, since the advent of smart phones which storage media have had, surely we are not clear. Hong Wang semiconductor ICMAX today to sort out who had appeared in the market of mobile phone memory card, and some already are antique, Hong Wang in the semiconductor memory industry for fifteen years, has witnessed the history of phone memory change agent, each memory card It appears with all core record.
What is Flash Memory?
Also known as a flash memory FLASH (flash memory), an electrically erasable programmable read only memory (EEPROM) form, or allowed to be repeatedly rubbed write operation, EEPROM and RAM become the most commonly used high-speed development, and most two fast storage technologies.
Binding strengths FLASH ROM and RAM, not only an electronic erasable programmable (EEPROM) performance, will not lose data off quickly while the read data (NVRAM advantage). Hong Wang semiconductor ICMAX is committed to providing customers with worldwide FLASH and DRAM related storage products, such as SPI NAND, SSD, embedded memory (EMMC, EMCP, LPDDR, etc.) and memory modules were networked storage solutions, products and services are widely used in hand-held mobile terminals, consumer electronics, computers and peripherals, medical, office, automotive electronics and industrial control equipment and other fields. 
At present, the dominant flash memory or multimedia card mainly for: TF, SM, CF, MicroDrive , MemoryStick, MemoryStick PRO, MMC card, Micro SD Card, MiniSD, SD , SDHC and xD, there is our common memory card and U FLASH Memory plate.
SM card (Smart Media) by Toshiba launched in November 1995 Flash Memory storage card, Samsung in 1996, purchased the production and sale of licenses, the two companies become a major SM card manufacturers. Smart Media card is a common micro memory card (but the maximum capacity of only 128MB) on the market, once very popular in the MP3 player. Smart Media card is seen as a replacement for the floppy disk, was general support for digital camera storage format, now is the potential demise of the decline, the biggest advantage compared to other terms of the format through a converter called the FlashPath, SM can use any card capacity in a standard 3.5-inch floppy drive. 
TF card (TransFlash) founded by SanDisk (SanDisk) invented, mainly for mobile phones is a very small flash memory card, rename, 2004 MicroSD (as the name suggests, is a small SD card). Almost only the size of a fingernail, mainstream desktops are no direct slot on the notebook, the connection via the SD card reader can read and write data. 
CF card (Compact Flash) was first introduced in 1994 by SanDisk a flash memory card, which revolutionized the use of flash memory technology, the saved data is, CF card than traditional disk drive security and protection higher. The late 1990s to the early 2000s appeared SD, MMC, SDHC, MS, xD Picture Card memory card formats, and so on, they will occupy a variety of digital products and mobile storage. Routers, switches, etc. Most of the networking and telecommunications equipment and digital still cameras CF card as the primary external storage device. 
MMC Card (MultiMedia Card) card jointly launched by Siemens and SanDisk Corporation CF devaluation in 1997, claims to be the world's smallest Flash Memory storage card. MMC card technology in recent years has been almost completely replaced SD card, but the card can still be MMC-compatible devices SD card read, and therefore still has its effect. A handful of companies, such as Nokia's most famous and still completely support MMC.
MS cards (Memory Stick) commonly referred to as Memory Stick, Sony is the company developed and launched in October 1998 market, uses a flash memory card Sony own appearance, protocol, physical format and copyright protection, MS cards specifications and at the same time the market is very similar to MMC. 
SD Card (Security Digital Memory Card, Secure Digital card translated) jointly introduced by Panasonic, Toshiba and SanDisk, in August 1999 was first released, the size of a postage stamp. General SD card can also be backward compatible with the MMC. Capacity of more than 4GB called microSDHC (Secure Digital High Capacity), more capacity must be used microSDXC (Secure Digital eXtended Capacity) specifications.
Toshiba SD card is added hardware encryption technology from the MMC card, SD / MMC card has been replaced Toshiba developed SM card, portable digital camera has become the most widely used digital memory card formats. Before still insist on using their own proprietary format of the three major manufacturers: Olympus and Fuji (xD card), Sony (Memory Stick), have begun to turn to SD card (or cards provide dual support). 
xD card (eXtreme Digital-Picture Card) is a specialized flash memory cards for digital cameras, jointly by the Fuji Photo Film and Olympus in 2002 released in July, to replace SM Card (SmartMedia Card). 
SanDisk miniSD was published in 2003 fine small form factor standard SD card, specifically designed for mobile phones, and with the card attached minSD adapter, making it compatible with all the devices configured in a standard SD card slot.
MicroDrive MD (Microdrive) was originally developed by IBM in 1999 and listed on a very small volume of hard disk data storage device, used to combat the mainstream market flash memory products. IBM's hard drive division was sold to Hitachi (Hitachi) company, so since 2003 MicroDrive technology and patents are owned by Hitachi. Microdrive memory having a large capacity, high speed read-write bit, the drawback is more power, easy to heat, and limit the difference between using the short life seismic performance. 
As shown, a lot of storage for a long time are feeling the age, and feel like watching non-mainstream period emoticons, there are chips of each memory chip industry participants and witnesses, it is a product of the times, the macro Wang semiconductor ICMAX will bear in mind their mission, building blocks for memory chips independent of the grand ideal.