Electrical interconnection for attachment to a substrate

Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Of specified material other than unalloyed aluminum

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257750, 257758, 257762, 257763, 257764, 257765, H01L 2348, H01L 2352, H01L 2940

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active

060518790

ABSTRACT:
The present invention is An electrical interconnection on a substrate and a method for forming an electrical interconnection on a substrate. The electrical interconnection in the present invention comprises a first metal layer, a first diffusion barrier layer on the first metal layer, a second metal layer on the first diffusion barrier layer, an organometallic layer on the second metal layer, and an electrical interconnect layer on the organometallic layer. The first diffusion barrier layer prevents diffusion of the first metal layer and the second metal layer therethrough. The organometallic layer is preferably formed by contacting the second metal layer with an organic material to form a organometallic layer. The organometallic layer chemically and physically protects the second metal layer, particularly by preventing the oxidation thereof.

REFERENCES:
patent: 3106489 (1963-10-01), Lepster
patent: 4598022 (1986-07-01), Haque et al.
patent: 5074947 (1991-12-01), Estes et al.
patent: 5196371 (1993-03-01), Kulesza et al.
patent: 5237130 (1993-08-01), Kulesza et al.
patent: 5480834 (1996-01-01), Lake et al.
patent: 5563102 (1996-10-01), Michael
patent: 5583073 (1996-12-01), Lin et al.
patent: 5629564 (1997-05-01), Nye, III et al.
patent: 5656858 (1997-08-01), Kondo et al.
patent: 5708302 (1998-01-01), Azuma et al.
G.K. Rao, Multilevel Interconnect Technology, pp. 78-95, McGraw-Hill (1993).
W.D. Callister, Jr., Materials Science and Engineering, pp. 566-568, John H. Wiley & Son (1994).
R.L. Opila et al., "Themal Stability of Azole-Coated Copper Surfaces," pp. 4074-4077, J. Electrochem. Soc. vol. 142, No. 12 (Dec. 1995).
Y. Lu, et al., "Interfacial modification for an aluminum/epoxy resin laminated composite," pp. 265-274, Composite Interfaces, vol. 2, No. 4 (1994).
K. Cho et al., "An Observation of Benzotrazole (BTA) Adsorption of Cu(110)," pp. 125-128, Jpn. J. Appl. Phys., vol. 33 (1994) Pt. 2, no. 1B.
K. Cho et al., "Adsorption and film growth of BTA on clean and oxygen adsorbed Cu(110) surfaces, " pp. 380-385, Applied Surface Science 87/88 (1995).
G. Xue et al., "Growth of a surface film on copper from benzotriazole solutions," pp. 72-82, Applied Surface Science 89 (1995).
G. Xue et al., Chemisorption of a compact polymeric coating on copper surfaces from a benzotriazole solution,: pp. 327-332, Applied Surface Science 40 (1990).
S. Gutierrez et al., "Nitrogen reflow ovens: the effect exit temperatures has on benzotriazole coated copper boards," pp. 329-336, 1995 IEEE/CPMT Int'l Electronics Manufacturing Technology Symp.
B. Weitzman "Drawbacks of Copper Interconnects" IEDM Short Course (1996).
Xue Gi, et al. "Coordination Polymerization of Benzotriazole of the Surface of Metallic Copper" Chinese J. of Polymer Science, pp. 239-244, vol. 7, No. 3 (1989).
R. Thomas et al. "Correlation of Surface Wettability and Corrosion Rate for Benzotriazole-Treated Copper" J. Electrochem. Soc. pp. 678-685, vol. 139, No. 3 (Mar. 1992).
J. Lau "Flip Chip Technologies", p. 228.
J. D. DeBiase, "Surface Finishes" p. 38, SMT (Jun. 1997).
H.G. Tompkins, et al., "The Interaction of Imidazole, Bensimidazole and Related Azoles with a Copper Surface," pp. 261-266 Surface and Interface Analysis, vol. 4, No. 6 (1982).

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