发明名称 |
METHOD TO OPTIMIZE SUBSTRATE THICKNESS FOR IMAGE SENSOR DEVICE |
摘要 |
Provided is a method for fabricating an image sensor device that includes providing a substrate having a front side and a back side; patterning a photoresist on the front side of the substrate to define an opening having a first width, the photoresist having a first thickness correlated to the first width; performing an implantation process through the opening using an implantation energy correlated to the first thickness thereby forming a first doped isolation feature; forming a light sensing feature adjacent to the first doped isolation feature, the light sensing feature having a second width; and thinning the substrate from the back side so that the substrate has a second thickness that does not exceed twice a depth of the first doped isolation feature. A pixel size is substantially equal to the first and second widths. |
申请公布号 |
US2012007204(A1) |
申请公布日期 |
2012.01.12 |
申请号 |
US201113238420 |
申请日期 |
2011.09.21 |
申请人 |
HSU TZU-HSUAN;HSU ALEX;WANG CHING-CHUN;TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. |
发明人 |
HSU TZU-HSUAN;HSU ALEX;WANG CHING-CHUN |
分类号 |
H01L27/146;H01L31/0352 |
主分类号 |
H01L27/146 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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