A Fault Primitive Based Analysis of Dynamic Memory Faults
نویسندگان
چکیده
The new memory technologies and processes are introducing defects that cause faults that were unknown previously. One of the new observed faults in real designs are called dynamic faults. The paper gives a mathematical analysis of such a fault class based on the fault primitive concept. The dynamic fault space will be then established; within this space dynamic functional fault models can be studied and analyzed. Keywords— Memory testing, static faults, dynamic faults, fault primitive, functional fault models.
منابع مشابه
Memory Fault Modeling Trends: A Case Study
In recent years, embedded memories are the fastest growing segment of system on chip. They therefore have a major impact on the overall Defect per Million (DPM). Further, the shrinking technologies and processes introduce new defects that cause previously unknown faults; such faults have to be understood and modeled in order to design appropriate test techniques that can reduce the DPM level. T...
متن کاملImportance of Dynamic Faults for New SRAM Technologies
New memory technologies and processes introduce new defects that cause previously unknown faults. Dynamic faults are among these new faults; they can take place in the absence of the traditional static faults. This paper describes the concept of dynamic faults, based on the fault primitive concept. It further shows, based on industrial test results, the importance of such faults for the new mem...
متن کاملA Fault Primitive Based Analysis of Linked Faults in RAMs
Linked faults are very important for memory testing because they reduce the fault coverage of the tests. Their analysis has proven to be a source for new memory tests, characterized by an increased fault coverage for a given test time. This paper presents an analysis of linked faults, based on the concept of fault primitives, such that the whole space of linked faults is investigated, accounted...
متن کاملAutomatic generation and compaction of March tests for memory arrays
Given a set of memory array faults the problem of computing a compact March test that detects all specified memory array faults is addressed. In this paper, we propose a novel approach in which every memory array fault is modeled by a set of primitive memory faults. A primitive March test is defined for each primitive memory fault. We show that March tests that detect the specified memory array...
متن کاملA new framework for generating optimal March tests for memory arrays
Given a set of memory array faults the problem of computing an optimal march test that detects all speci-ed memory array faults is addressed. In this paper, we propose a novel approach in which every memory array fault is modeled by a set of primitive memory faults. A primitive march test is deened for each primitive memory fault. We show that march tests that detect the speci-ed memory array f...
متن کامل