| US 7,532,529 B2 | ||
| Apparatus and methods for multi-level sensing in a memory array | ||
| Oleg Dadashev, Hadera (Israel); Yoram Betser, Mazkeret Batya (Israel); and Eduardo Maayan, Kfar Saba (Israel) | ||
| Assigned to Saifun Semiconductors Ltd., Netanya (Israel) | ||
| Filed on Aug. 14, 2006, as Appl. No. 11/464,253. | ||
| Application 11/464253 is a continuation of application No. 10/810683, filed on Mar. 29, 2004, granted, now 7,142,464. | ||
| Prior Publication US 2006/0285402 A1, Dec. 21, 2006 | ||
| Int. Cl. G11C 7/02 (2006.01) | ||
| U.S. Cl. 365—207 [365/189.07; 365/210.1] | 20 Claims |
| 1. A reference cell comparator comprising: a first input terminal functionally associated with a reference cell; a second input terminal functionally associated with a multi-comparator signal line; and an output terminal adapted to provide a trigger signal when input signals at the first and second input terminal substantially meet a predefined criteria, wherein said trigger signal is adapted to trigger sampling of an output of a data cell comparator functionally associated with the multi comparator signal line; and wherein said reference cell and the data cell have matched sensing paths. |