Circuit module
US6392897B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1572
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit module includes a connector terminal (4A) provided on a front surface of a printed wiring board (2) and connected to a data pin (DQt) of a memory IC (3) through an interconnect line (5a). A conductive connector terminal (4c) corresponds to the connector terminal (4a) and is provided on a back surface of the printed wiring board (2). A through hole (16) extends between part of the front surface of the printed wiring board (2) where the connector terminal (4a) is formed and part of the back surface thereof where the conductive connector terminal (4c) is formed. A conductor fills the through hole (16), thereby suppressing skews resulting from a difference in interconnect line length on the circuit module and decreasing a stub capacitance to achieve the reduction in power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.