发明名称 |
Creating Unique Device Identification For Semiconductor Devices |
摘要 |
Systems and methods for creating unique device identification for semiconductor devices are described. In some embodiments, a method may include receiving a wafer identification mark printed on a semiconductor wafer having a plurality of dies fabricated thereon; receiving a leadframe identification mark printed on a leadframe configured to receive the plurality of dies during a die attach operation; and for each of the plurality of dies: (a) recording a wafer location of a given die prior to the die attach operation; (b) recording a leadframe location of the given die after the die attach operation; (c) creating a device identification mark for the given die based upon the wafer identification mark, the leadframe identification mark, the wafer location, and the leadframe location; and (d) printing the device identification mark on a package of the given die. |
申请公布号 |
US2016351508(A1) |
申请公布日期 |
2016.12.01 |
申请号 |
US201514971485 |
申请日期 |
2015.12.16 |
申请人 |
Texas Instruments Incorporated |
发明人 |
Kalyanaraman Venkataramanan;Cherukuri Kalyan C.;Butler Kenneth M. |
分类号 |
H01L23/544;G06K7/10 |
主分类号 |
H01L23/544 |
代理机构 |
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代理人 |
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主权项 |
1. A method, comprising:
receiving a wafer identification mark printed on a semiconductor wafer having a plurality of dies fabricated thereon; receiving a leadframe identification mark printed on a leadframe configured to receive the plurality of dies during a die attach operation; and for each of the plurality of dies:
(a) recording a wafer location of a given die prior to the die attach operation;(b) recording a leadframe location of the given die after the die attach operation;(c) creating a device identification mark for the given die based upon the wafer identification mark, the leadframe identification mark, the wafer location, and the leadframe location; and(d) printing the device identification mark on a package of the given die. |
地址 |
Dallas TX US |