发明名称 |
Semiconductor device and method of producing a high contrast identification mark |
摘要 |
A seconductor device (50) includes a semiconductor die (20) having a first surface (14) for forming electronic circuitry. A coating layer (16) formed on a second surface (15) of the semiconductor die has a color that contrasts with the color of the semiconductor die. The coating layer is patterned to expose a portion of the second surface to reveal information pertaining to the semiconductor device. The coating layer is patterned by directing a radiation beam (30) such as a laser to selectively remove material from the coating layer. |
申请公布号 |
US2005017353(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20040498703 |
申请日期 |
2004.06.11 |
申请人 |
SEDDON MICHAEL;CARNEY FRANCIS |
发明人 |
SEDDON MICHAEL;CARNEY FRANCIS |
分类号 |
H01L23/544;(IPC1-7):H01L23/48 |
主分类号 |
H01L23/544 |
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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