Wang et al. Nanoscale Research Letters 2011, 6:483 http://www.nanoscalereslett.com/content/6/1/483 Page 4 of 5 Figure 4 Surface images of epoxy resin. (a) The uncoated surface without ELD copper film, (b) ELD copper film on the uncoated surface, and (c) ELD copper film on the TESPA SAM uncoated surface. TESPA will probably replace the traditional organosilane (MPTMS, APTMS, etc) to be applied in microelectronic industry. However, the interaction mechanism of two mercapto groups and nitrogen atoms in TESPA with copper remains to be studied. Also, the test [23] of leak- age current density (jleakage) as a function of time during bias thermal annealing (BTA, tBTA) will be carried out. In order to understand the Cu-TESPA interface chemis- try, XPS on Cu/TESPA/SiO2/Si structure will also be studied in the future research. Conclusion The functional triazinedithiolsilane molecule TESPA was designed and synthesized. The Si-OH group of hydro- lyzed TESPA could react with the polar groups on pre- treated epoxy resin surface to form the TESPA SAM, which promote ELD copper film onto the substrate. The adhesion strength between TESPA SAM-coated epoxy resin and ELD copper film was up to 13.8 MPa, which could satisfy the purpose of TESPA SAM applied as adhesion enhancer. The design strategy of TESPA will provide possibilities for replacing the traditional organo- silane (MPTMS, APTMS, etc.) to be applied in micro- electronic industry. Additional material Additional file 1: Spectral data of TESPA. The spectral data of FT-IR, 1H NMR and 13C NMR and MS for TESPA. Acknowledgements The authors express their sincere gratitude for the financial support of the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (no. K314020902) and the Fundamental Research Funds for the Central Universities (no. Z109021008). Authors’ contributions FW designed the experimental idea and synthetic strategy. YL and ZC participated in the synthesis and characterization of the target molecule, and performed the statistical analysis. YW participated in the design of the study and drafted the manuscript. All authors read and approved the final manuscript. Competing interests The authors declare that they have no competing interests. Received: 10 May 2011 Accepted: 3 August 2011 Published: 3 August 2011 References 1. Kuech TF, Mawst LJ: Nanofabrication of III-V semiconductors employing diblock copolymer lithography. J Phys D: Appl Phys 2010, 43:183001. 2. Gandhi D, Lane M, Zhou Y, Singh A, Nayak S, Tisch U, Eizenberg M, Ramanath G: Annealing-induced interfacial toughening using a molecular nanolayer. Nature 2007, 447:299. 3. Doppelt P, Semaltianos N, Deville Cavellin C, Pastol J, Ballutaud D: High affinity self-assembled monolayers for copper CVD. Microelectron Eng 2004, 76:113. 4. Caro A, Armini S, Richard O, Maes G, Borghs G, Whelan C, Travaly Y: Bottom-up engineering of subnanometer copper diffusion barriers using NH2-derived self-assembled monolayers. Adv Funct Mater 2010, 20:1125. 5. Liu G, Zhao H, Zhang J, Park JH, Mawst LJ, Tansu N: Selective area epitaxy of ultra-high density InGaN quantum dots by diblock copolymer. Nanoscale Res Lett 2011, 6:342. 6. Moores B, Simons J, Xu S, Leonenko Z: AFM-assisted fabrication of thiol SAM pattern with alternating quantified surface potential. Nanoscale Res Lett 2011, 6:185.