Method of forming I/O columns with open ends that are free of crater-like voids
US5918516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Feb 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8717
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of cutting input/output columns on an electronic component includes the steps of: providing a shear plate which has a thickness that is less than the length of the columns and which has respective holes for receiving all of the columns; inserting the columns into the holes until a portion of the columns extend past the shear plate; placing a blade, with a cutting edge, at an acute angle against the shear plate such that only the cutting edge of the blade touches the shear plate; and, sliding the cutting edge of the blade against shear plate and through the portion of the columns which extend past the shear plate, while keeping the blade at the acute angle. With this method, crater-like voids and burrs on the cut ends of the columns are eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.