Light-receiving apparatus having a position detectable portion on a sealing frame and its manufacturing method
US5883386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Sep 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-receiving apparatus comprises a light-receiving device positioned relative to an external component with increased accuracy. A sealing frame is mounted on a printed circuit board. One corner of this sealing frame is detectable by image processing. The position inside of the sealing frame at which the light-receiving device should be mounted is determined from the detected position of the corner of the sealing frame. A sealing material is injected inside the sealing frame and cured, thereby sealing the light-receiving device. Pins of the external components are inserted into holes or cutouts in the sealing frame and made stationary when the light-receiving device is mounted to the external component. The mounting of the light-receiving device inside the sealing frame is based on the sealing frame, and the mounting of the apparatus to the external part is based on the sealing frame. Therefore, the light-receiving device can be mounted relative to the external part with high accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.