Method for reducing tilt of optical unit during manufacture of image sensor
US9184331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Oct 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/18161
Abstract
A method for reducing the tilt of an optical unit during manufacture of an image sensor includes the steps of: providing a semimanufacture of the image sensor, carrying out a preheating process, carrying out an adhesive application process, carrying out an optical unit mounting process, and carrying out a packaging process. Due to the preheating process, the semimanufacture will be subjected to a stabilized process environment during the adhesive application process and the optical unit mounting process, so as for the optical unit to remain highly flat once attached to the semimanufacture. The method reduces the chances of tilt and crack of the optical unit and thereby contributes to a high yield rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.