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NeoBit
NeoBit is a programmable logic device offering the industry’s most silicon-proven path to embedded OTP function.
NeoBit uses a logic-based process for an embedded non-volatile memory (eNVM) design that eliminates the need for additional masking layers or extra process steps typically associated with eNVM. NeoBit embeds seamlessly into a variety of CMOS processes, including logic, mixed-mode, bipolar-CMOS-DMOS (BCD), analog, radio-frequency (RF), and high-voltage (HV).
High Yield
Suitable for major foundries with CMOS technologies ranging from 0.5um~55nm
Fast Time to Market
Easy porting to derivative processes
Most Widely Used
High production record
High Reliability
Mature technology with testability feature
Low Cost
No additional masking layers required
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Technical Principles
NeoBit is composed of two p-MOSFETs connected in series, one as a floating gate transistor and the other as a select transistor. NeoBit uses a channel hot hole to induce hot electron injection (CHEI) into the floating gate to program the bit cell. The lateral high-electric field accelerates holes and leads on electron-hole pair generation. The electrons that form the electron-hole pairs are injected into the floating gate via a coupling effect between the floating gate and the drain. Electrons stored in the floating gate turn on the channel of the p-type FG-MOSFET.
Use Cases & Functionality
NeoBit has a broad range of applications to achieve wide functionality and is the ideal replacement for traditional ROM and EPROM system designs in mainstream platforms.