TWI267328B - Printed circuit board having improved vias - Google Patents

Printed circuit board having improved vias

Info

Publication number
TWI267328B
TWI267328B TW94130348A TW94130348A TWI267328B TW I267328 B TWI267328 B TW I267328B TW 94130348 A TW94130348 A TW 94130348A TW 94130348 A TW94130348 A TW 94130348A TW I267328 B TWI267328 B TW I267328B
Authority
TW
Taiwan
Prior art keywords
layer
circuit board
printed circuit
pad
vias
Prior art date
Application number
TW94130348A
Other languages
Chinese (zh)
Other versions
TW200714150A (en
Inventor
Yu-Hsu Lin
Shang-Tsang Yeh
Chao-Chen Huang
Chuan-Bing Li
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW94130348A priority Critical patent/TWI267328B/en
Application granted granted Critical
Publication of TWI267328B publication Critical patent/TWI267328B/en
Publication of TW200714150A publication Critical patent/TW200714150A/en

Links

Landscapes

  • Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)

Abstract

The invention relates to a printed circuit board having improved vias for improving signal integrity. The printed circuit board includes a first layer, a second layer, a third layer and a via. The via includes a drill hole, a first pad and a second pad. The first pad is arranged at the first layer, and the second pad is arranged at the second layer. The drill hole is transversely defined through the first layer and the second layer. A circular hole is defined in the third layer corresponding to the second pad.
TW94130348A 2005-09-05 2005-09-05 Printed circuit board having improved vias TWI267328B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94130348A TWI267328B (en) 2005-09-05 2005-09-05 Printed circuit board having improved vias

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94130348A TWI267328B (en) 2005-09-05 2005-09-05 Printed circuit board having improved vias

Publications (2)

Publication Number Publication Date
TWI267328B true TWI267328B (en) 2006-11-21
TW200714150A TW200714150A (en) 2007-04-01

Family

ID=38191831

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94130348A TWI267328B (en) 2005-09-05 2005-09-05 Printed circuit board having improved vias

Country Status (1)

Country Link
TW (1) TWI267328B (en)

Also Published As

Publication number Publication date
TW200714150A (en) 2007-04-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees