Zobrazeno 1 - 10
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pro vyhledávání: '"Martin L. Culpepper"'
Autor:
Robert M. Panas, Martin L. Culpepper
Publikováno v:
Precision Engineering. 64:211-219
A modeling theory is developed to predict the performance of piezoresistors which incorporate Schottky diode electrical contacts. This new theory allows the design of high performance gauges which can be fabricated using Non-Lithographically-Based Mi
Autor:
Robert M. Panas, Martin L. Culpepper
Publikováno v:
Journal of Micro and Nano-Manufacturing. 9
A process flow is described for the low cost, flexible fabrication of metal micro-electromechanical systems (MEMS) with high performance integrated sensing. The process is capable of producing new designs in ≈1 week at an average unit cost of 30×
Autor:
Martin L. Culpepper, Sourabh K. Saha
Publikováno v:
Wiley
Emergence of hierarchy during compression of quasi-planar bilayers is preceded by a mode-locked state during which the quasi-planar form persists. Transition to hierarchy is determined entirely by geometrically observable parameters. This results in
Autor:
Robert M. Panas, Martin L. Culpepper
Publikováno v:
IEEE Transactions on Electron Devices. 62:1977-1983
This paper provides engineering models of a simple and robust approach for creating electrical connections to silicon using reduced temperature ( $\approx 1\Omega $ -cm $^{2}$ for $\langle 110\rangle $ p-type wafers at $10^{17}$ cm $^{-3}$ doping.
Publikováno v:
PMC
This paper presents the design and characterization of a three-axis thermomechanical actuator-based endoscopic scanner for obtaining ex vivo two-photon images. The scanner consisted of two sub-systems: 1) an optical system (prism, gradient index lens
Autor:
Martin L. Culpepper, Michael Cullinan
Publikováno v:
Carbon. 51:59-63
This paper presents a method to fabricate high purity, single chirality carbon nanotube (CNT) based sensor systems. Ultracentrifugation is initially used to create an 85% pure (6,5) CNT sample. This 85% pure sample has a gauge factor of −22.7 ± 0.
Publikováno v:
Sensors and Actuators A: Physical. 187:162-173
Traditional MEMS sensing systems do not scale down well to the nanoscale due to resolution and fabrication limitations. Therefore, new sensing systems need to be developed in order to meet the range and resolution requirements of nanoscale mechanical
Autor:
Martin L. Culpepper, Shih-Chi Chen
Publikováno v:
Journal of Microelectromechanical Systems. 21:340-349
This paper presents the concepts, models, and experimental validations of the geometric contouring method and a pulsing technique to enhance dynamic performance of micro thermomechanical actuators (μTMAs). For a typical TMA, contouring may improve i
Publikováno v:
Precision Engineering. 36:44-54
Piezoresistive sensing systems have characteristics that enable them to act as fine-resolution, high-speed force and displacement sensors within MEMS and other small-scale systems. High-performance piezoresistive sensing systems are often difficult t
Publikováno v:
Precision Engineering. 36:55-69
The creation of new technology for high-throughput nanomanufacturing is necessary to realize the full potential of some nano-technological products. Here, we present the preliminary design and manufacture of a precision machine for enabling high-thro