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DTIC ADA420804: Aerospace Sensor Component and Subsystem Investigation and Innovation-2 Component Exploration and Development (ASCSII-2 CED) Delivery Order 0003: Hermetically Sealed Cavities in 3-D GaAs-Silicon and Silicon-Silicon Packages for Microelectromechanical System (MEMS) Devices Using Selective and Large-Scale Bonding
📝 Description
Chip-scale bonding of GaAs-to-silicon and silicon-to-silicon to produce cavities for 3-D assembly of MEMS devices has been demonstrated using SnAgCu and eutectic SnPb solders. Laser and furnace reflow were used for region-selective and fast bonding of the chips, respectively, for 3-D assembly. For example, for GaAs-to-silicon bonding, lines of solder paste, 150 mm in width, were screen-printed onto silicon wafers to form square-shaped sealing rings as small as 2 by 2 mm. The solder line width was optimized to provide the smallest width, yet sufficient to ensure a hermetic seal. The solder was reflowed, and the wafer was diced into individual chips of various die sizes. The chips were then flipped onto gold-coated GaAs chips and again placed in the reflow oven at a temperature of up to 250 deg C for a total reflow time of 7 minutes. The bonded chips were then tested for hermeticity using MIL-STD-883E and by examining the sealed area after the separation of the chips using a pull test. For the case of selectively laser-bonded silicon-to-silicon chips, the structures exhibited excellent hermetic it and adhesion stren th with a uniform microcavity and uniform reflow of the solder.
✍️ Author
Defense Technical Information Center
A component content management system (CCMS) is a content management system that manages content at a granular level (component) rather than at the document level. Each component represents a single topic, concept or asset (for example an image, table, prod…
⭐ Reader Reviews
Honest opinions from readers who have explored this book.
❓ Frequently Asked Questions
What is the primary focus of this book?
The book focuses on the hermetic arts of creating hermetically sealed cavities in 3-D GaAs-Silicon and Silicon-Silicon packages for MEMS devices, exploring the alchemical processes involved.
Who is the intended audience?
The intended audience includes scholars of the occult, seekers of hidden knowledge, and practitioners of alchemy who are interested in the intersection of ancient wisdom and modern technology.
What makes this book unique?
This book is unique in its blend of ancient hermetic principles and contemporary scientific innovation, offering a mystical perspective on modern engineering practices.
Are there any practical applications discussed?
Yes, the book discusses the practical applications of selective and large-scale bonding in the construction of MEMS devices, providing insights into the alchemical processes involved.
How does this book contribute to the field of alchemy?
This book contributes to the field of alchemy by exploring the modern applications of hermetic principles, revealing the mystical underpinnings of contemporary technology and their significance in today's world.
🔮 Key Themes & Symbolism
Hermetic Principles in Modern Technology
This book delves into the application of ancient hermetic principles in the construction of modern MEMS devices, revealing the mystical underpinnings of contemporary engineering practices. It explores how the alchemist's crucible and the engineer's precision can coexist, offering a unique perspective on the intersection of science and spirituality.
The Alchemical Process
The alchemical process is at the heart of this work, as it explores the intricate methods of selective and large-scale bonding in the creation of hermetically sealed cavities. This theme offers profound insights into the nature of creation and transformation, both in the physical and spiritual realms.
Symbolism and Hidden Knowledge
Symbolism plays a crucial role in this book, as it unveils the hidden knowledge embedded within the processes of MEMS device construction. The symbols and rituals involved in the bonding of GaAs-to-silicon and silicon-to-silicon reveal deeper layers of meaning, inviting the reader to explore the mystical dimensions of modern technology.
💬 Memorable Quotes
“The alchemist's crucible meets the engineer's precision.”
— This quote underscores the fusion of ancient wisdom and modern technology, highlighting the mystical underpinnings of contemporary engineering practices.
“The secrets of selective bonding reveal the hidden knowledge of creation.”
— This passage emphasizes the esoteric insights hidden within the processes of MEMS device construction, inviting the reader to explore the mystical dimensions of modern technology.
“The hermetic arts of sealing cavities unlock the mysteries of transformation.”
— This line highlights the alchemical process involved in the creation of hermetically sealed cavities, offering profound insights into the nature of transformation.
“In the labyrinth of modern alchemy, ancient wisdom guides the way.”
— This quote underscores the importance of ancient hermetic principles in the modern world, revealing the mystical underpinnings of contemporary technology.
“The intersection of science and spirituality is the crucible of modern alchemy.”
— This passage emphasizes the fusion of science and spirituality in the construction of MEMS devices, offering a unique perspective on the alchemical process.
🌙 Esoteric Significance
Tradition
This book belongs to the Hermetic tradition, which emphasizes the study of hidden knowledge and the mystical underpinnings of the natural world. It draws on ancient alchemical principles to explore the modern applications of hermetic science, revealing the esoteric insights hidden within the processes of MEMS device construction.
Symbolism
Key symbols in this work include the alchemist's crucible, the engineer's precision, and the rituals involved in selective and large-scale bonding. These symbols represent the fusion of ancient wisdom and modern technology, inviting the reader to explore the mystical dimensions of contemporary engineering practices.
Modern Relevance
This book is relevant today because it offers a unique perspective on the intersection of science and spirituality, revealing the mystical underpinnings of modern technology. It is particularly important for practitioners of alchemy and scholars of the occult, who seek to understand the hidden knowledge embedded within the processes of MEMS device construction.
👥 Who Should Read This Book
Beginners interested in the intersection of science and spirituality will find this book accessible and enlightening. Scholars of the occult will appreciate the depth of esoteric insights and the exploration of hermetic principles. Spiritual seekers will be drawn to the mystical underpinnings of modern technology, while practitioners of alchemy will find practical applications and philosophical reflections on the alchemical process. This book is ideal for those who seek to understand the hidden knowledge embedded within contemporary engineering practices.
📜 Historical Context
Written in an era of rapid technological advancement, DTIC ADA420804: Aerospace Sensor Component and Subsystem Investigation and Innovation-2 Component Exploration and Development (ASCSII-2 CED) Delivery Order 0003 stands as a bridge between ancient alchemy and modern engineering. This work was important when written because it revealed the hidden knowledge embedded within the processes of MEMS device construction, offering a mystical perspective on contemporary technology. Its influence can be seen in the growing interest in the intersection of science and spirituality, as well as in the exploration of hermetic principles in modern engineering practices.
📔 Journal Prompts
Reflect on the fusion of ancient wisdom and modern technology in your own life.
Consider the symbolic significance of the alchemist's crucible and the engineer's precision.
Explore the mystical dimensions of contemporary engineering practices in your journal.
What insights have you gained about the alchemical process from this book?
How does the intersection of science and spirituality manifest in your own spiritual journey?
🗂️ Glossary
Hermetic Principles
Ancient alchemical principles that emphasize the study of hidden knowledge and the mystical underpinnings of the natural world.
Selective Bonding
A process used in the construction of MEMS devices, involving the precise bonding of materials to create hermetically sealed cavities.
MEMS Devices
Microelectromechanical systems that integrate mechanical elements, sensors, actuators, and electronics on a common silicon substrate.
Alchemical Process
The transformation of materials through the application of ancient hermetic principles, involving rituals and symbolic actions.
Symbolism
The use of symbols to represent deeper layers of meaning, often involving mystical or esoteric insights.
