Synchronous dynamic random access memory (SDRAM) and memory controller device mounted in single system in package (SIP)
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United States of America Patent
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Jun 5, 2018
Issued Date -
Feb 2, 2017
app pub date -
Jun 9, 2016
filing date -
Jul 29, 2015
priority date (Note) -
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Abstract
To provide an electronic device capable of improving a signal quality, the electronic device includes a semiconductor memory device, a semiconductor device configured to access data stored in the semiconductor memory device, and a wiring substrate on which the semiconductor memory device and the semiconductor device are mounted. The wiring substrate includes first and second data wirings electrically connecting the semiconductor device with each first and second data terminal of the semiconductor memory device through first and second wiring layers. The first wiring layer is a wiring layer arranged closer to the semiconductor device than the second wiring layer, and the first data terminal is located farther from the semiconductor device than the second data terminal.
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