Bipolar programmable read only memory with fusible links
Patent 3976983 Issued on August 24, 1976. Estimated Expiration Date: 
August 24, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 24, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3525083 3611319 3721964 3872450 InventorApplicationNo. 549065 filed on 02/11/1975US Classes:365/96, Fusible365/103, Semiconductive365/174SemiconductiveExaminersPrimary: Hecker, Stuart N.Attorney, Agent or FirmForeign Application Priority Data1974-02-15 FRAbstractA read-only memory which can be programmed by means of internal fuses and whose memory cells are formed by bipolar transistors in an ECL circuit.The emitters of the memory-position transistors are coupled to the emitter in a row-address transistor, the bases are connected directly to the emitter of a column read transistor, the collector lines include the fuses, and the rows and columns are supplied from current sources. | |
