Title:
LOSS TEST STRIP AND PCB DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/024486
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of PCBs, and disclose a loss test strip and a PCB device, the loss test strip comprising at least one signal layer (10); the at least one signal layer (10) is provided with at least two pairs of differential transmission lines (100) having different lengths; the outer surface of the loss test strip is provided with test regions (200) in one-to-one correspondence to two end portions (101) on an extension path of each pair of differential transmission lines (100); the two end portions (101) on the extension path of each pair of differential transmission lines (100) respectively extend to a projection region of a corresponding test region (200) facing the signal layers (10) in which the end portion (101) is located; and the distance between two test regions (200) corresponding to one pair of differential transmission lines (100) among two different pairs of differential transmission lines (100) is equal to the distance between two test regions (200) corresponding to the other pair of differential transmission lines (100).
Inventors:
WANG JIHUAN (CN)
XIE JIAN (CN)
XIE JIAN (CN)
Application Number:
PCT/CN2022/080796
Publication Date:
March 02, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H05K1/02; G01R27/26; G01R31/28
Foreign References:
| CN209314136U | 2019-08-27 | |||
| CN111610432A | 2020-09-01 | |||
| US20060132256A1 | 2006-06-22 | |||
| CN106487462A | 2017-03-08 | |||
| CN108169574A | 2018-06-15 | |||
| CN108152709A | 2018-06-12 | |||
| CN108254625A | 2018-07-06 |
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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