CN2781459Y - Flash card with special capacity - Google Patents
Flash card with special capacity Download PDFInfo
- Publication number
- CN2781459Y CN2781459Y CN 200420110580 CN200420110580U CN2781459Y CN 2781459 Y CN2781459 Y CN 2781459Y CN 200420110580 CN200420110580 CN 200420110580 CN 200420110580 U CN200420110580 U CN 200420110580U CN 2781459 Y CN2781459 Y CN 2781459Y
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- capacity
- flash memory
- flash
- card
- flash chip
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Abstract
The utility model relates to a memory medium, particularly a flash memory card with a special capacity. The utility model solves the technical problems that the flash memory card only has the standard capacity, when MByte or GByte is used as memory capacity unit, memory capacity is the integer time square of two. The utility model has the technology solving scheme that the flash memory card with a special capacity comprises a base plate and a flash memory chip, wherein the flash memory chip is a multichip and is connected with the base plate through gold thread bonding. The kinds (according to capacity classification) of the flash memory chip which is used at the inner part of the flash memory card are two or more than two, or by using homogeneous flash memory chips, the number of which is not the integer time square of two, a product of the flash memory card with the special capacity is designed and produced. The capacity of the flash memory card is MB or GB as the memory capacity unit, and the memory capacity is not the integer time square of two. The utility model is suitable for all the flash memory card products: MMC, SD, MS, CF, SM, etc.
Description
Technical field: the utility model relates to a kind of storage medium, particularly a kind of flash card of special capacity.
Background technology: along with the arriving of digital age, increasing digital code information product is being or be about to enter our family: mobile phone, palm PC, digital camera, electronic toy, digital video camcorder, digital audio player, e-book, digital recording pen, GPS or the like, these products use various mobile micro memories more and more, particularly are used for storing the equipment of data such as a large amount of audio frequency, video, software, program data.Meanwhile, the development of computing machine itself is also had higher requirement to movable storage device, and under this trend, the market of mobile micro memory is just in surprising growth.
Flash Memory (flash memory) is a development in recent years storage medium rapidly, adopt the fast-flash memory body technique, mainly be that memory document is stored on the silicon wafer, belong to non-voltile memory (Non-volatile promptly cut off the power supply data also can preserve), it has the advantages that EEPROM (Electrically EPROM) electricity is wiped, but also has low-power consumption, density height, volume is little, reliability is high, can wipe, can rewrite advantage such as overprogram.Because Flash Memory belongs to the mobile micro memory that does not have physical construction, with respect to MO, micro harddisk etc. the memory of physical construction is arranged, natural just have at a high speed, shock resistance, advantage such as highly reliable.Flash Memory has become most widely used mobile little storage medium, and along with the further reduction of price and the raising of capacity, FlashMemory will have very wide prospect.In fact, not only widespread use on the novel digital product, markets such as traditional EPROM, EEPROM also begin to be replaced by Flash Memory, and more and more having adopted Flash Memory as the BIOS on the mainboard is storer.
Tubular construction is not how, Flash Memory memory cell is transistorized set all the time, will be in specific product these chip application, corresponding carrier, interface, control gear and agreement will be arranged, therefore just being born the storage card of various use Flash Memory, generally is called flash card.
For not specific explanation of flash card, flash card itself is exactly a kind of explanation in other words.Another angle of not associating sees that flash-storing card just looks like that hard disc of computer is the same, carry some data do with preserve, backup, maintain secrecy, transfer etc.Certainly flash card is compared with hard disc of computer, and advantage on " card ", with the maximum data of volume carrying of trying one's best little, is exactly the characteristics that flash card is be proud of most just.Flash card such as MMC, SD goes up on the stage and make a theatrical pose one after another, and toward different is, no matter these flash cards on capacity, still aspect volume, power, the scope of application, all are eager to excel several times than the predecessor.So far, flash card has stepped into every field such as computing machine, communication, life completely.
Common flash card has now: MMC (Multimedia card), SD (Security Digital card), MS (Memory Stick), CF (Compact Flash), SM (Smart Media) etc.
At present the common capacity of flash card is that (MB or GB are storage capacity unit, MB:MByte, megabyte for 64MB/128MB/256MB/512MB/1GB/2GB/4GB etc.; GB:GByte, G byte, memory capacity be 2 integer power doubly), be adopt 1,2,4 grades 2 the flash chip production of integer power and product.
Will cause like this when the user has special the requirement to the capacity of flash card, as when needing the flash card of specifications such as 384MB/640MB/768MB/1.28GB/1.4GB/1.54GB/1.8GB, existing flash card just can't satisfy requirement of client.
Summary of the invention: the purpose of this utility model provides a kind of flash card product of special capacity, the technical issues that need to address are: the bottleneck of breaking through the flash card capacity, the flash card of special capacity: 384MB/640MB/768MB/1.28GB/1.4GB/1.54GB/1.8GB etc. (with MB or GB is storage capacity unit, and memory capacity is not 2 integer power) are produced in design.
Technical solution of the present utility model is: a kind of flash card of special capacity, comprise substrate and flash chip (chip of being mentioned is nude film) herein, flash chip is a multi-disc, flash chip adopts the structure of tiling or lamination to be placed on the substrate, connect by gluing between the flash chip, bottom flash chip and substrate are by epoxy encapsulation, and flash chip and substrate fill up filling material by the gold thread bonding between flash chip, gold thread and the substrate.The inner employed flash chip kind of flash card (according to the capacity classification) has two or more, or use an integer power flash chip of the same race of non-2 to design, produce and the flash card product of special capacity.The capacity of flash card is a storage capacity unit with MB or GB, and memory capacity is not 2 integer power.
The beneficial effects of the utility model are: the flash card capacity has been broken through the restriction of industrywide standard capacity, can realize the flash card of special capacity: 384MB/640MB/768MB/1.28GB/1.4GB/1.54GB/1.8GB etc. (is characterized in that, with MB/GB is storage capacity unit, and memory capacity is not 2 integer power).
Description of drawings:
Accompanying drawing is a flash card cut-away view of the present utility model.
Among the figure: 1-substrate, 2-gold thread, 3-flash chip, 4-epoxy resin, 5-filling material.
Embodiment: with reference to accompanying drawing, for flash chip 3, the capacity difference, the size of flash chip 3 is also different, the different flash chip of 4 size dimensions as shown in the figure carries out lamination, adheres by glue between the flash chip 3, and bottom flash chip 3 encapsulates by epoxy resin 4 with substrate 1.Aborning, the size difference of flash chip, beat the more complicated that just becomes on the golden finger of gold thread 2 to the substrate 1, manufacturing process is had higher requirement, the gold thread 2 that different flash chips are drawn will keep certain spacing, in order to avoid intersect, collide, cause short circuit, fill up filling material 5 between flash chip 3, gold thread 2 and the substrate 1.
Claims (1)
1, a kind of flash card of special capacity, comprise substrate and flash chip, it is characterized in that: divide under the prerequisite of kind with capacity at flash chip, the inner employed flash chip kind of flash card, two or more is arranged, or use non-2 an integer power flash chip of the same race, flash chip adopts the structure of tiling or lamination to be placed on the substrate, connect by gluing between the flash chip, bottom flash chip and substrate pass through epoxy encapsulation, flash chip and substrate fill up filling material by the gold thread bonding between flash chip, gold thread and the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110580 CN2781459Y (en) | 2004-12-02 | 2004-12-02 | Flash card with special capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110580 CN2781459Y (en) | 2004-12-02 | 2004-12-02 | Flash card with special capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781459Y true CN2781459Y (en) | 2006-05-17 |
Family
ID=36762660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110580 Expired - Fee Related CN2781459Y (en) | 2004-12-02 | 2004-12-02 | Flash card with special capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781459Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114266335A (en) * | 2021-12-27 | 2022-04-01 | 至誉科技（武汉）有限公司 | Solid-state memory card |
-
2004
- 2004-12-02 CN CN 200420110580 patent/CN2781459Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114266335A (en) * | 2021-12-27 | 2022-04-01 | 至誉科技（武汉）有限公司 | Solid-state memory card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |