IP Library › Granted Patent US 9,595,217

Granted Patent B2

US 9,595,217 · App. 14/535,216 · Granted Mar 14, 2017

Trace structure for improved electrical signaling

Inventor: Minghui Han (San Jose, CA)

G09G3/20 H05K1/0242 H05K1/0296 H05K1/11 G09G2300/0404 G09G2310/06 G09G2310/08 H01L23/66 H01L2924/0002 H05K1/025 H05K1/0246 H05K2201/097 H05K2201/09218 H05K2201/09727 H05K2201/09827 H05K2201/10128

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Quick Facts

Patent No.: US 9,595,217
App. No.: 14/535,216
Granted: Mar 14, 2017
Kind: B2

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USPTO Patent Center↗ Full Patent PDF↗

Abstract

A trace to be coupled to an input of a receiver, the trace including: a plurality of first portions; and a plurality of second portions alternately coupled in series with the first portions, the second portions having a width that is different from that of the first portions.

Claims (48)

1. A display device comprising:

a display;

a transmitter coupled to the display;

a receiver coupled to the transmitter;

a channel coupled to the receiver at a node, and configured to transmit a signal from the transmitter to the receiver; and

a trace coupled to the channel at the node between the transmitter and the receiver, the trace comprising:

a plurality of first portions; and

a plurality of second portions alternately coupled in series with the first portions, the second portions having a width that is different from that of the first portions,

wherein the trace is configured to amplify reflection of the signal at a predetermined frequency.

2. The display device of claim 1 , wherein the width of a first portion from among the first portions is constant from a first end of the first portion to a second end of the first portion, and

the width of a second portion from among the second portions is constant from a first end of the second portion to a second end of the second portion.

3. The display device of claim 1 , wherein the width of a first portion from among the first portions is smaller than the width of a second portion from among the second portions, and

the width of the first portion increases from a first end of the first portion to a second end of the first portion, and the width of the second portion increases from a first end of the second portion to a second end of the second portion.

4. The display device of claim 1 , wherein the width of a first portion from among the first portions is larger than the width of a second portion from among the second portions, and

the width of the first portion decreases from a first end of the first portion to a second end of the first portion, and the width of the second portion decreases from a first end of the second portion to a second end of the second portion.

5. The display device of claim 1 , wherein the trace comprises a plurality of periods, each of the periods comprising one of the first portions and an adjacent one of the second portions, and a length of each of the periods is equal to each other.

6. A circuit board comprising:

a first terminal to be coupled to a transmitter;

a second terminal to be coupled to a receiver;

a channel coupled to the second terminal at a node, and configured to transmit a signal from the first terminal to the second terminal; and

a trace coupled to the channel at the node between the first terminal and the second terminal, the trace comprising:

a plurality of first portions; and

a plurality of second portions alternately coupled in series with the first portions, the second portions having a width that is different from that of the first portions,

wherein the trace is configured to amplify reflection of the signal at a predetermined frequency.

7. The circuit board of claim 6 , wherein the width of a first portion from among the first portions is constant from a first end of the first portion to a second end of the first portion, and

the width of a second portion from among the second portions is constant from a first end of the second portion to a second end of the second portion.

8. The circuit board of claim 6 , wherein the width of a first portion from among the first portions is smaller than the width of a second portion from among the second portions, and

9. The circuit board of claim 6 , wherein the width of a first portion from among the first portions is larger than the width of a second portion from among the second portions, and

10. The circuit board of claim 6 , wherein the trace comprises a plurality of periods, each of the periods comprising one of the first portions and an adjacent one of the second portions, and a length of each of the periods is equal to each other.

11. A trace to be coupled to an input of a receiver, the trace comprising:

a plurality of first portions; and

a plurality of second portions alternately coupled in series with the first portions, the second portions having a width that is different from that of the first portions,

wherein the trace is coupled to a channel at the input of the receiver, the channel being configured to transmit a signal to the input of the receiver, and

wherein the trace is configured to amplify reflection of the signal at a predetermined frequency.

12. The trace of claim 11 , wherein the width of a first portion from among the first portions is constant from a first end of the first portion to a second end of the first portion, and

the width of a second portion from among the second portions is constant from a first end of the second portion to a second end of the second portion.

13. The trace of claim 12 , wherein each one of the first portions and the second portions have a quadrilateral shape.

14. The trace of claim 11 , wherein the width of a first portion from among the first portions is smaller than the width of a second portion from among the second portions, and

15. The trace of claim 14 , wherein each one of the first portions and the second portions have a trapezoidal shape.

16. The trace of claim 11 , wherein the width of a first portion from among the first portions is larger than the width of a second portion from among the second portions, and

17. The trace of claim 16 , wherein each one of the first portions and the second portions have a trapezoidal shape.

18. The trace of claim 11 further comprising a plurality of periods, each of the periods comprising one of the first portions and an adjacent one of the second portions, and a length of each of the periods is equal to each other.

19. The trace of claim 18 , wherein each of the first portions have a quadrilateral shape, each of the second portions have a quadrilateral shape, and the width of the first portions is smaller than the width of the second portions.

20. The trace of claim 18 , wherein each of the periods have a trapezoidal shape.

Assignments (2)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2015

From: SAMSUNG SEMICONDUCTOR, INC.

To: SAMSUNG DISPLAY CO., LTD.

Reel/Frame 035437/0694 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2015

From: HAN, MINGHUI

To: SAMSUNG SEMICONDUCTOR, INC.

Reel/Frame 034686/0142 →

Continuity (2)

Provisional Application 61912472 · Dec 5, 2013

Related Publication 20150161929A1 · Jun 11, 2015