Problem: NAND Bit Errors Impact Production on Programming
Solution: BERT (Bit Error Rate Tolerance) for NAND
Recent trends in the NAND manufacturing process have lead to a dramatic increase in the number of “bit flips” or “bit errors” in the latest generation of high-density NAND flash. Bit errors that occur during programming pose a major problem for most “off-line” flash programming solutions.
When a bit flips during programming the device will fail verify. Faced with unacceptably high fallout rates due to verify failures, some have resorted to disabling verify. This is a practice BPM Microsystems would never endorse, as it will inevitably lead to flawed devices being released to production.
BPM Microsystems solves the bit error problem with Flashstream®. Flashstream utilizes BERT, a patent pending process included in BPWin.
BERT allows users to set the maximum number of bit errors they will allow on each page of the device. Flashstream efficiently calculates the number of bit errors per page during the verify process.
The BERT value can be set not to exceed the number of bit errors the target system’s ECC (Error Correction Code) will allow. This solution provides high production yields of verified devices without impacting the throughput speed of Flashstream programmers.
Whitepaper: Understanding NAND Flash Factory Programming
With the industry trend toward ever larger and more complex NAND devices, our Flashstream line of device programmers provide our customers with a fast and flexible solution for NAND programming.
For more information, please download BPM Microsystems’ NAND White Paper that provides detailed information on factory programming of NAND Flash.
We Have a Solution that Fits Your Needs
About BPM Microsystems
Founded in 1985, BPM Microsystems is a supplier of engineering and production device programmers and is the leading supplier of automated programming systems to the semiconductor and electronics industries.
We offer a full line of device programmers, which include Universal Programmers, Concurrent Programming Systems®, and Fine-Pitch Automated Programming Systems, designed to meet all of your programming requirements.
Our industry-leading technologies provide customers with the most flexible, value-focused programmers designed to lower the cost of programming. From the lowest to the highest in programming volume, BPM Microsystems has a product that will fit your need and will grow as your business grows.
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Flashstream Features
The Flashstream line of programmers offers extremely high throughput of NAND, NOR, and Serial Flash devices.
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Provides the lowest possible programming overhead compared to theoretical minimum programming time.
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Utilizes proprietary Vector Engine co-processor design to hardware accelerate flash memory wave forms
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Enables peak verify bandwidth at 800mb/s (20ns cycle)
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Supports all NAND, NOR and SERIAL flash devices including the latest high density raw and managed NAND (onenand, movinand, inand, emmc).
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Supports any size device. Included memory supports file sizes up to 32gb. Has upgradeable ram for larger file densities.
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Flexible socket solution, provides cost effective 1st articles and production replacements with ability to purchase just one socket card at a time.
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Scalable design, multiple Flashstreams can be connected on one computer to run volume production in “concurrent programming mode.”
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Extensive list of published programming times on industry standard devices.
Get more information on the Flashstream line of programmers
BPWin Software
BPWin software provides powerful tools that support your design, first article and production requirements.
- NAND Management Utility
- Image Format Tool
- IP Protection with BPWin “Job Protection”
- COM Serialization - (ESS) External Serialization Server
- Performance Metrics
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MS Windows™ account-based security management tools
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Enable viewing and editing only with password
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Intuitive Icons
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Data Pattern Compression
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Enhanced buffer utilities
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Autosave JobSummary
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BlackBox file archiving capability
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Checksum and type
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Socket Card Maintenance Reminder
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Flexible output window
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Dynamic GUI, user-defined preferences
Get more information on BPWin
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