U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Semiconductor package for forming a double die package (DDP)

Patent 7489534 Issued on February 10, 2009. Estimated Expiration Date: Icon_subject June 22, 2027. 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

Semiconductor device and a memory system including a plurality of IC chips in a common package
Patent #: 7227251
Issued on: 06/05/2007
Inventor: Sakuma, et al.

Low power multi-chip semiconductor memory device and chip enable method thereof Patent #: 7379380
Issued on: 05/27/2008
Inventor: Sohn, et al.

Inventor

Assignee

Application

No. 11812840 filed on 06/22/2007

US Classes:

365/52HARDWARE FOR STORAGE ELEMENTS

Examiners

Primary: Phan, Trong

Attorney, Agent or Firm

International Classes

G11C 5/00
G11C 7/00
G11C 8/00

Abstract

A semiconductor package for forming a Double Die Package (DDP) with a plurality of single chips includes: a buffer configured to buffer an external address to generate a row address which is defined only in a DDP mode; a column address control unit configured to replace the row address with a column address, which is defined only in the DDP mode, in a single chip mode; and a read operation control unit configured to output a bank read signal latched in an active bank in a read mode of the DDP, and to selectively activate a first address control signal and a second address control signal for activating a bank selected from the single chip or the DDP in response to the bank read signal.

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