Page 347 - System on Package_ Miniaturization of the Entire System

CHAPTER 6

Integrated Chip-to-Chip

Optoelectronic SOP

Prof. Gee-Kung Chang, Prof. Thomas Gaylord, Ricardo Vallalaz,
and Daniel Guidotti
Georgia Institute of Technology, Atlanta, Georgia

Prof. Ray T. Chen
University of Texas, Austin, Texas

6.1 Introduction 322 6.7 SOP Integration: Interface Optical Coupling 357
6.2 Applications of Optoelectronic SOP 323 6.8 On-Chip Optical Circuits 363
6.3 Integration Challenges in Thin-Film Optoelectronic 6.9 Future Trends in Optoelectronic SOP 365
SOP 325 6.10 Summary 365
6.4 Advantages of Optoelectronic SOP 331 References 366
6.5 Evolution of Optoelectronic SOP Technology 336 Table 6.1 References 374
6.6 Optoelectronic SOP Thin-Film Components 341

hile it is true that modern economies are built on energy, agricultural, and
industrial foundations, without any one of which the economy would
Wcollapse, it is equally true that timely and detailed information makes it
possible for the modern economy to function efficiently, and information has become a
foundation in and of itself. Not surprisingly, machines that gather, generate, process,
and disseminate information also have to become more efficient at their tasks. Key
measures are megawatt for power generation, crop yield for agriculture, production
efficiency for industry, and bandwidth for information. In industrialized economies, all
but the first have seen large improvements in recent years with information growing
the fastest, as measured by percent growth per year. One of our most efficient conduits
of information became useless during the last half of the twentieth century and was
replaced by a conduit having a much higher bandwidth. Long-distance telephone lines

321

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