Small chips, big knowledge----u disk chip decryption

The core components of u disk storage is the chip well known as "FLASH memory",its basic cost determines the refined U disk price level high or not.there is a wide range of various brands U disk products show different prices grade on the market, largely is because the"FLASH memory" chips are different.

Flash memory chips are divided into original.downgrade level, etc.

The regular authentic chip brand usually points to the brand such as "Samsung", "modern", "Hitachi" and so on; U disk used as a brand are the Micron, Toshiba; "Samsung "High-speed flash memory prices higher than these two brands about 20RMB, and generally used for high-end MP3, MP4. The brand extensive use for U disk "Toshiba" and "Micron" share the almost same basic price.

The so-called "downgrade", in generally, there are two kinds, one refers to defective products from Samsung, Toshiba, Hyundai and other manufacturers, the second one refers to the recovery in the market for used flash memory chips. Since the chip manufacturers in the production of flash memory chips, the wafer production down are graded, it can be divided into 99% capacity, 97% capacity, 93% capacity, etc. Wafer level below 93 percent capacity are no longer marked with signs of the original, but it will not be thrown away, it flows into small package plant in Taiwan or the mainland, flowing to the black chip market. Some manufacturers took advantage of the low level of wafer, after grinding, paste or modern LOGO Samsung came out to sell. These low-cost chips do not meet the criteria, basically you can use it but less than normal capacity. But after flows into the black chip market, as do not have the chip's technical skill to solve the bugs, the chip loses shielded bad blocks, so it is easy to spread bad area. More startling striking is that some u disk manufacturers secretly tricks in the chip, 64MB chip used as 126MB, while 128MB used as 256MB, these chips are called "Upgrade film", and then use software to cheat the system, thereby reap profits, the average consumer is difficult to identify the authenticity.

Custom USB pendrive vendor,Shenzhen Huawanda Electronic Co.,Ltd,promise to you all of our China factory swivel usb flash drive are grade A good die chips