Semiconductor device for reducing effects of noise on an internal circuit
First Claim
Patent Images
1. A semiconductor device, comprising:
- a first internal circuit formed on a semiconductor substrate and causing noise;
a second internal circuit formed on said semiconductor substrate and affected by said noise;
a first power supply potential provision line for providing a first power supply potential;
a second power supply potential provision line having one end connected to said first power supply potential provision line and providing said first internal circuit with said first power supply potential;
a third power supply potential provision line having one end connected to said first power supply potential provision line and providing said second internal circuit with said first power supply potential; and
a first filter provided at said third power supply potential provision line for reducing said noise.
1 Assignment
0 Petitions
Accused Products
Abstract
Semiconductor device according to the present invention includes package frame, bonding wire, pad, first internal power supply line, second internal power supply line, internal circuit, stabilize circuit, GND package frame, GND bonding wire, GND pad, and internal GND line. Bonding wire, pad, and first and second internal power supply lines function as a filter. As a result, noise generated by operation of the internal circuit is absorbed in propagating to the stabilize circuit through first internal power supply line, pad, and the second internal power supply line. Therefore, effects of noise given to the stabilize circuit are small.
21 Citations
35 Claims
-
1. A semiconductor device, comprising:
-
a first internal circuit formed on a semiconductor substrate and causing noise; a second internal circuit formed on said semiconductor substrate and affected by said noise; a first power supply potential provision line for providing a first power supply potential; a second power supply potential provision line having one end connected to said first power supply potential provision line and providing said first internal circuit with said first power supply potential; a third power supply potential provision line having one end connected to said first power supply potential provision line and providing said second internal circuit with said first power supply potential; and a first filter provided at said third power supply potential provision line for reducing said noise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A semiconductor device, comprising:
-
a first internal circuit causing noise; a second internal circuit affected by said noise; internal potential generation means for generating an internal potential; a first internal potential provision line for providing said internal potential; a second internal potential provision line having one end connected to said first internal potential provision line and providing said first internal circuit with said internal potential; a third internal potential provision line having one end connected to said first internal potential provision line and providing said second internal circuit with said internal potential; and a filter provided at said third internal potential provision line for reducing said noise.
-
-
10. A semiconductor device, comprising:
-
a first internal circuit causing noise; a second internal circuit affected by said noise; first internal potential generation means for generating a first internal potential to be provided to said first internal circuit; second internal potential generation means for generating a second internal potential to be provided to said second internal circuit; a power supply potential provision line for providing a power supply potential to said first internal potential generation means and said second internal potential generation means; a first internal potential provision line for providing said first internal circuit with said first internal potential; and a second internal potential provision line for providing said second internal circuit with said second internal potential. - View Dependent Claims (11)
-
-
12. A semiconductor device, comprising:
-
a first internal circuit causing noise; a second internal circuit affected by said noise; first internal potential generation means for generating a first internal potential to be provided to said first internal circuit; a first internal potential provision line for providing said first internal potential to said first internal circuit; second internal potential generation means for generating a second internal potential to be provided selectively to said second internal circuit or both said first and second internal circuits; a second internal potential provision line for providing said second internal potential selectively to said second internal circuit or both said first and second internal circuits; and connection control means for controlling connection of said first internal circuit with said first internal potential provision line or said second internal potential provision line in accordance with a state of said semiconductor device. - View Dependent Claims (13)
-
-
14. A semiconductor device, comprising:
-
a first internal circuit causing noise; a second internal circuit affected by said noise; first internal potential generation means for generating a first internal potential to be provided to said first internal circuit and said second internal circuit when said semiconductor device is in an operative state; second internal potential generation means for generating a second internal potential to be provided to said first and second internal circuits when said semiconductor device is in a standby state; a first internal potential provision line for providing said first internal potential; a second internal potential provision line for providing said second internal potential; a third internal potential provision line connected between said first internal potential provision line and said second internal potential provision line; and a filter provided at said third internal potential provision line for reducing said noise;
whereinsaid third internal potential provision line provides one of said first and second internal potentials.
-
-
15. A semiconductor device, comprising:
-
a first internal circuit causing first noise; a second internal circuit affected by said first noise; first internal potential generation means for generating a first internal potential to be provided to said first internal circuit; second internal potential generation means for generating a second internal potential to be provided to said second internal circuit; a first internal potential provision line for connecting said first internal potential generation means and said first internal circuit and providing said first internal potential; a second internal potential provision line for connecting said second internal potential generation means and said second internal circuit and providing said second internal potential; and first connection control means provided between said first and second internal potential provision lines for controlling connection between said first and second internal potential provision lines in accordance with a state of said semiconductor device. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
-
-
23. A semiconductor device, comprising:
-
a first internal circuit affected by noise; a first potential provision member for providing a potential to said first internal circuit; an internal lead connected in series with said first potential provision member for providing said potential to said first internal circuit; and a second potential provision member connected in series with said internal lead for providing said potential to said first internal circuit;
whereinsaid internal lead does not have a connection portion with outside of said semiconductor device for providing and receiving a voltage to and from the outside of said semiconductor device and is thicker than an internal interconnection of said semiconductor device. - View Dependent Claims (24, 25)
-
-
26. A semiconductor device, comprising:
-
an external lead having a connection portion with outside for directly providing and receiving a voltage to and from the outside of said semiconductor device; and an internal lead which does not have a connection portion with the outside for directly providing and receiving a voltage to and from the outside of said semiconductor device;
whereinsaid external lead and said internal lead are thicker than an internal interconnection of said semiconductor device. - View Dependent Claims (27, 28, 29, 30, 31)
-
-
32. A semiconductor apparatus comprising:
-
a semiconductor device contained within a package and having an internal interconnection formed thereon; an external lead thicker than said internal interconnection and partially exposed to outside of said package; an internal lead thicker than said internal interconnection and wholly buried inside of said package; and a wire connected between said external lead and said internal lead.
-
-
33. A semiconductor apparatus comprising:
-
a semiconductor device contained within a package and having an internal interconnection formed thereon; an external lead thicker than said internal interconnection and partially exposed to outside of said package; and an internal lead thicker than said internal interconnection and wholly buried inside of said package wherein said external lead receives an external power supply potential, said semiconductor device includes an internal potential generating circuit receiving said external power supply potential from said internal lead and generating an internal potential different from said external power supply potential.
-
-
34. A semiconductor apparatus comprising:
-
a semiconductor device contained within a package and having an internal interconnection formed thereon; an external lead thicker than said internal interconnection and partially exposed to outside of said package; and an internal lead thicker than said internal interconnection and wholly buried inside of said package wherein said external lead receives an external power supply potential, said semiconductor device includes an internal potential generating circuit connected to said internal lead, generating and providing an internal potential different from said external power supply potential to said internal lead. - View Dependent Claims (35)
-
Specification