13.2
Cross Sectional Focus Ion Beam Top-Down Delayering

Thursday, November 7, 2013: 1:30 PM
Meeting Room 230B (San Jose McEnery Convention Center)
Mr. G.R. Low , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Mr. P.K. Tan , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Dr. Tsu Hau Ng , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Mr. H.H. Yap , Global Foundries, Singapore, Singapore
Mr. Hua Feng , GLOBALFOUNDRIES Singapore Pte. Ltd, Singapore, Singapore
R. He , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
H Tan , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Dr. M.K. Dawood , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Dr. Yamin huang , GLOBALFOUNDRIES Singapore Pte Ltd, Singapore, Singapore
Dr. Dandan wang , GLOBALFOUNDRIES Singapore Pte. Ltd, Singapore, Singapore
Mr. Y.Z. Zhao , Global Foundries, Singapore, Singapore
Mr. Y. Zhou , Global Foundries, Singapore, Singapore
Jeffrey Lam , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Dr. Z.H. Mai , Globalfoundries Singapore Pte. Ltd., Singapore, Singapore
Mr. Raghaw Rai , GLOBALFOUNDRIES Singapore Pte Ltd, Singapore, Singapore

Summary:

Top-down layer by layer delayering inspection with polisher and progressive cross-sectional Focus Ion Beam (XFIB) slicing are two common approaches for Physical Failure Analysis (PFA). This paper uses cross-sectional focus ion beam to perform top down layer by layer delayering inspection. The advantages of this technique include: 1) having a better control of the delayering progress 2) prevention of over-delayering and 3) having the ability to perform real time Scanning Electron Microscopy (SEM) view during top-down XFIB delayering to achieve a better understanding of the defect formation.