AMD AXDA3000DKV4D Athlon TM XP Microprocessor Structural Analysis

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1 September 22, 2004 AMD AXDA3000DKV4D Athlon TM XP Microprocessor Structural Analysis Table of Contents Introduction... Page 1 List of Figures... Page 2 Device Identification Major Microstructural Analysis Transistor Microstructural Analysis For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor technology, please call Sales at Chipworks.

2 Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights Chipworks Incorporated This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information.

3 Structural Analysis Page 1 Introduction The AMD AXDA3000DKV4D is an Athlon XP microprocessor tailored for Microsoft Windows XP. The device runs at GHz and incorporates 640 KB of total on die cache. Maximum system bus speed is rated at 333 MHz. The reported die size is 101 mm² and features approximately 54.3 million transistors. The device is packaged in a 462-pin Socket A OPGA (Organic Pin Grid Array) package. The AXDA3000DKV4D was reportedly manufactured in Dresden, Germany at AMD s Fab 30 using 0.13 micron copper process technology. The process design featured a full CMP process with nine levels of damascene copper, and one level of polycide. The device analyzed features physical gate lengths measuring 0.07 micron. The device employs Shallow Trench Isolation (STI), and twin wells in a P-epi on a P-type substrate. Cobalt silicide is present on the polysilicon and diffusions (salicide process). The passivation layer consisted of oxynitride over nitride. All interlevel dielectrics consisted of a thin nitride capping layer over the previous copper layer followed by various depositions of oxide, oxynitride, and nitride. The copper lines and final layer of glass were subjected to CMP. The pre-metal dielectric consisted of an oxynitride sealant dielectric followed by a thick oxide layer. Cross-sectional analysis of the device structure was performed using a Field Emission Scanning Electron Microscope (FESEM) and a Transmission Electron Microscope (TEM). Analysis of the material composition was achieved with X-ray Energy Dispersive Spectroscopy (EDS). This report contains the following detailed information: Package photographs and x-ray Die markings and die photograph Measurement of vertical and horizontal dimensions of major microstructural features FESEM and TEM cross-sectional micrographs of dielectric materials, major features, and transistors All the information was derived by Chipworks from the following sample: Package Markings: AMD Athlon AXDA3000DKV4D AQXCA 0308VPBW M 1999 AMD Die Markings: <logo> M AMD 2002AMD

4 Structural Analysis Page 2 List of Figures Device Identification Package Markings Package X-Ray Die Markings Die Photograph Die Corners Die Corners (Continued) Bond Pad Layout Bus Line Layout Major Microstructural Features Die Edge Detail of Edge Seal Ring Etch Uniformity Patterns General Device Structure General Device Structure Bond Pad to Metal 9 Via Detail of Bond Pad to Metal 9 Via Metal 9 Profiles Detail of Metal 9 Profile Metal 9 to Metal 8 Vias Detail of Metal 9 to Metal 8 Vias Metal 8 Profiles Detail of Metal 8 Profiles Metal 8 to Metal 7 Vias Detail of a Metal 8 to Metal 7 Via

5 Structural Analysis Page Metal 7 Profiles Detail of Metal 7 Profiles Metal 7 to Metal 6 Vias Detail of Metal 7 to Metal 6 Vias Metal 6 Profiles Detail of Metal 6 Profiles Metal 6 to Metal 5 Vias Detail of a Metal 6 to Metal 5 Via Metal 5 Profiles Detail of Metal 5 Profiles Metal 5 to Metal 4 Via Detail of a Metal 5 to Metal 4 Via Metal 4 Profiles Detail of Metal 4 Profiles Metal 4 to Metal 3 Via Detail of a Metal 4 to Metal 3 Via Metal 3 Profiles Detail of Metal 3 Profiles Metal 3 to Metal 2 Via Detail of a Metal 3 to Metal 2 Via Metal 2 Profiles Detail of Metal 2 Profiles Metal 2 to Metal 1 Via Detail of a Metal 2 to Metal 1 Via Metal 1 Profiles Detail of Metal 1 Profiles Metal 1 to Polycide Contacts Detail of a Metal 1 to Polycide Contact Metal 1 to N+ Diffusion Contacts

6 Structural Analysis Page Metal 1 to P+ Diffusion Contact N-Channel Transistors P-Channel Transistors Polycide Structure Minimum Polycide Spacing STI/Gate Oxide Transition STI/Gate Oxide Transition Minimum Isolation Polycide on Minimum Isolation Cache Array Cache Array Epi and Well Structure Detail of N-Well Structure Transistor Microstructural Analysis FESEM Micrograph N-Channel Transistors (Si Etch) FESEM Micrograph P-Channel Transistor (Si Etch) FESEM Micrograph Polycide Structure (Oxide Etch) FESEM Micrograph Polycide Structure (Oxide Etch) TEM Micrograph General Device Structure TEM Micrograph Detail of ILD Structure TEM Micrograph Detail of ILD Structure TEM Micrograph Detail of ILD Structure TEM Micrograph Detail of ILD Structure TEM Micrograph General Device Structure TEM Micrograph Detail of Device Structure TEM Micrograph Detail of Device Structure TEM Micrograph M1 Profile TEM Micrograph Detail of M1 Liner

7 Structural Analysis Page TEM Micrograph Tungsten Plug S/D Contact TEM Micrograph Detail of Tungsten Plug S/D Interface TEM Micrograph Detail of Tungsten Plug Liner TEM Micrograph Tungsten Plug Liner (Half Height) TEM Micrograph Detail of Polycide Gate TEM Micrograph Gate Oxide TEM Micrograph Detail of Polycide Gate TEM Micrograph Gate Oxide TEM Micrograph Detail of Polycide Gate TEM Micrograph Gate Oxide TEM Micrograph Detail of Nitride Sidewall Spacers TEM Micrograph Co S/D Silicide Rev /30/03 10:06 AM

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