| Author | U-Thai Emsing |
| Call Number | AIT Thesis no.ISE-13-50 |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering in Mechatronics, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis; no.ISE-13-50 |
| Abstract | According to rapid increasing areal density roadmap of data storage devices, it is important to significantly improve in hard disk drive (HDD) manufacturing process. Automated machines with high precision technology have been continuously developed to replace manual operation for HDD assembly. The aim of this study is one approach corresponding to automation technology to integral optical characteristic recognition (OCR) on dynamic electrical test machine (sDET) for electrical testing at slider or read/write head level instead of conventional testing at HGA or head gimbal assembly level. This machine can be helpful to reduce many processing steps, scrap, data loss and manpower. Integral OCR and sDET and optimization set-up parameters are quite important. Many attempts done to improve read ability and accuracy of femto slider’s serial number were characteristic training, ROI adjustment and creating software to define certain information of slider’s serial number following wafer diagram. Finally, the integral OCR system on sDET can achieve target of readability at 98.6% with accuracy at 99.6%. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-13-50 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Microelectronics (ME) |
| Chairperson(s) | Afzulpurkar, Nitin V.; |
| Examination Committee(s) | Nagai, Masahiko;Kant Sangkaew; |
| Scholarship Donor(s) | Western Digital (Thailand) Co.,Ltd.;NECTEC;Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2013 |