Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Memory module and an IC card










Image Number 5 for United States Patent #5838549.

In semiconductor modules having a plurality of semiconductor devices mounted on a multilayer printed circuit boards as the processing speed increases, a short circuit current flowing through CMOS devices in the semiconductor devices during operation can cause noise because of ground inductance or power supply inductance. This noise can result in erroneous operations. To solve this problem, the power supply layer or grand layer that is connected to either the power supply terminal Vcc or the ground terminal Gnd of each semiconductor memory, which is located farther from the connection terminals, is arranged closer to the semiconductor memories with this arrangement, the short circuit current flowing through the semiconductor memories is more strongly magnetically coupled with the power supply layer or ground layer arranged close to them. Thus, it is possible to reduce the effective inductance. This, in turn, reduces noise, making it possible to provide a semiconductor module with an increased processing speed.








 
 
  Recently Added Patents
Hydroxylated amide skin moisturizer
Data transfer device and data transfer method
Client network device and method for adjusting parameters of client traffic windows based on discovery of other network devices
Control device for radiation imaging apparatus and control method therefor
Integrated testing circuitry for high-frequency receiver integrated circuits
Method and device for detecting the dysfunction of a gas pressure sensor in a vehicle tire
Mobile application for calendar sharing and scheduling
  Randomly Featured Patents
Rotary developing device
Antipsychotic hexahydro-2H-indeno[1,2-c]pyridine derivatives
Time period setting structure of timer
Sensitized online BOLD-MRI imaging method
Subassembly for industrial fabrics
Device and method for caching control, and computer product
Simplified core flow thrust control device
Light emitting apparatus
Genes for galactomannan production in plants and methods of use
Membrane-electrode unit with an integrated wear ring, and method of making the same