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Multi-chip package for reducing parasitic load of pin
   
Document Number
US Patent 7566958
Issued Date
July 28, 2009
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Abstract
Multi-chip package includes first through Nth semiconductor chips, each of which includes an input/output pad, an input/output driver coupled to the input/output pad, and an internal circuit. Each of the first through Nth semiconductor chips includes an internal pad for coupling the internal input/output driver and the internal circuit. The internal pads of the first through Nth semiconductor chips are coupled to each other such as via a common pad installed at a substrate. The input/output pad of the first semiconductor chip directly receives an input/output signal transmitted via a corresponding pin of the multi-chip package. The second through Nth semiconductor chips indirectly receive the input/output signal via the internal pads coupled to each other. The multi-chip package can improve signal compatibility by maintaining a parasitic load of a pin to at least the level of a single chip, when a signal is transmitted to the pin at high speed. Also, when a signal that is not necessarily transmitted at high speed is applied to a pin, semiconductor chips can be packaged according to the preexisting methods.
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Number of Claims:
11
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Owner
Samsung Electronics Co., Ltd. (Suwon, Kyungki-Do,KR)
Published
July 28, 2009
Application Number
11/589,192
Filed
October 30, 2006
US Classification
257/685   257/723 257/786 257/E25.006 257/E25.027
Int'l Classification
H01L   23/02   (20060101)  
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Assistant Examiner
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Parent Case
CROSS REFERENCES TO RELATED APPLICATIONS This is a divisional of U.S. patent application Ser. No. 10/722,159, filed 26 Nov. 2003 now U.S. Pat. No. 7,148,563, the contents of which are incorporated herein by reference in their entirety, and also claims the priority benefit under 35 U.S.C. .sctn. 119 from Korean Patent Application No. 2002-75805, filed on Dec. 2, 2002, the contents of which are also incorporated herein by reference in their entirety.
Priority Data
Dec 02, 2002 [KR] 2002-75805
USPTO Field of Search
257/685   257/686   257/723   257/730   257/731   257/773   257/784   257/786   257/E25.006   257/E25.013   257/E25.021   257/E25.027   257/E21.614   257/777   257/209   257/698   257/692  
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