Low impedance, high bandwidth disk drive suspension circuit
US8553364B1 · kind B1 · utility
49Cited by
36References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | May 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09827
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A low impedance, low crosstalk disk drive suspension circuit has multiple traces carrying a first polarity of a differential signal, interleaved with multiple traces carrying the second polarity of a differential signal. Each pair of conductors consisting of a trace of the first polarity and a trace of the second polarity may cross over each other at multiple crossover points. The crossover connections may utilize a second layer of copper trace conductors over the first and main layer, or alternatively the crossover connections may utilize an isolated portion of the suspension substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.