Electronic package
US5337219A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/175
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for altering an electrical connection in an electronic package including one or more semiconductor chips overlying, i.e., mounted directly onto, or mounted onto one or more modules which are mounted onto, a substrate such as a printed circuit card or printed circuit board, as well as the resulting electronic package, is disclosed. In accordance with a preferred embodiment of the inventive method, at least one plated, solder-filled hole in the substrate is drilled out to eliminate an unwanted electrical connection. A solder region, e.g., a solder ball, is inserted into the drilled out hole into contact with an electrically conductive member, e.g., an electrically conductive pin, extending from, for example, a module into the hole. A cylinder, including a central core of electrically conductive material, encircled by an annulus of electrically insulating material, is inserted into the hole. The solder region is then reflowed to form an electrical and metallurgical bond between the module member and the central core. A new electrical connection is completed by extending a wire bond from the bottom of the central core to the bottom of the central core in another such hole or t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.