Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 307 for “"Printed Circuit"”.
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Net Decomposition in Printed Circuit Layout Design
Made available in DSpace on 2014-12-13T19:55:31Z (GMT). No. of bitstreams: 1 8004171.pdf: 8838412 bytes, checksum: c81b30ed4891d103e2d448fae7a7abf7 (MD5) Previous issue date: 1979
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Multi-connection vias for printed circuit boards
… the integrity of high-frequency signals through circuit boards becomes increasingly challenging. The dimensions and material parameters of in-plane circuit board features, such as striplines, microstrips and co-planar waveguides are tuned to control signal impedance. Conventional multi-layer …
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Microwave Overlay Capacitor Fabrication on Printed Circuit Boards
… ferroelectric thick films, and planarization of printed circuit boards (PCB) using soldermask to allow for film deposition which was not reported in the literature. A new method to have the PCB prepared appropriately at the manufacturing stage was employed. A bandpass filter on PCB was designed …
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Printed Circuit Board Design for Frequency Disturbance Recorder
… will physically fit all the components on one Printed Circuit Board (PCB). At the same time, the software that is to be implemented on the new board is to be kept similar if not the same as that of the current design. The current FDR uses the Axiom CME555 development board and it is interfaced …
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Clustering Algorithms for Component Placement in Printed Circuit Boards
In 2024, approximately 12 billion printed circuit boards (PCBs) were manufactured globally [1], with the trend increasing gradually, and the majority of PCB layouts still being completed manually. The manual design process amounts to millions of hours of tedium that can be eased with automation. …
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Cost and quality drivers in printed circuit board assembly
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1992 and (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.
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Minimizing machine set-up time when manufacturing printed circuit boards.
… placement machines for the production of Printed Circuit Boards (PCBs). However, when these fast machines have to assemble small volumes of many different types of circuit boards, the machine set-up time becomes much more important than the assembly rate of each board. In order to minimize …
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Numerical modelling of electrodeposition process for printed circuit boards manufacturing
Printed circuit boards (PCBs) are used extensively in electronic products to connect assembled components within a system. The so-called vertical interconnect access (via) is a vertical hole or cavity in the PCB filled with metal to facilitate conductivity. The current trend, particularly for high …
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High-frequency characterization of embedded components in printed circuit boards
… technology, where chips are placed inside of the printed circuit board instead of on top. The advantage of this technology is the reduced electronic interconnection length between components. The shorter this connection, the faster the signal transmission can occur. Different high-frequency …
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Fast Heuristic Techniques for Placing and Wiring Printed Circuit Boards
Made available in DSpace on 2014-12-10T20:13:40Z (GMT). No. of bitstreams: 1 7317438.pdf: 4446957 bytes, checksum: f25b8dc9bf5ea550e5fe43f231384f7d (MD5) Previous issue date: 1972
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Physical modeling of electrical conduction in printed circuit board insulation
… confidence of their validity. As a first case,printed circuit board (PCB) insulation was selected as a target for investigation. With an increase in the electronics and circuit miniaturization coupled with an increase in voltage in 42 volt as well as hybrid vehicles, PCB reliability has become …
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Predicting solder defects in printed circuit board assembly (PCBA) process
Printed circuit boards (PCBs) are core components of virtually every modern electronic device, from smartphones to servers. Accordingly, printed circuit board assembly (PCBA) has become core to Flex, a leading electronics manufacturing services (EMS) company. As the EMS industry continues to …
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Precise registration methods in the manufacture of printed circuit boards
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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Evaluation of solvent swelling pre-treatment combined with ammonia leaching using waste etchant from printed circuit board manufacturing for copper recovery from waste printed circuit boards
… emphasis on the recovery of metals from waste Printed Circuit Boards (PCBs) as they contain a high content of copper as well as a significant quantity of precious metals such as gold, silver, and palladium. The major economic driver for the beneficiation of PCBs is the recovery of these …
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Measurement and Analysis of High Frequency Resonances In Printed Circuit Boards
<p>Though the printed circuit board (PCB) industry advances much more slowly compared to silicon density, the signaling rates of PCBs must continue to scale so that platforms can take advantage of these higher performing processors. The nature of the materials used to make these boards is not well …
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Implementation of remote monitoring system in printed circuit board assembly equipment
… the addition of the monitoring capability. The printed circuit board assembly area of the North Penn Electronics Facility was selected as the target of this study. A system to monitor the component pick performance of the individual feeders on the surface mount pick and place machines was …
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Design method of a modular electronic printed circuit board testing system
The failure rate of the printed circuit board electronic testing process is higher than acceptable at a Lenze Americas factory. This thesis will understand the root causes of failure, and use system engineering methods to decide what course of action should be taken. A Tradespace analysis is used …
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Design influences on manufacturing flexibility in the printed circuit board industry
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1992.
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