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The structure and material properties of the silicone rubber keys have great effects on the assembly reliability of the pins of the rubber keys’ in the holes of the printed circuit board (PCB). Too so...ft pins cause the insertion problem but too stiff pins cause shock. The interference between insert pins and the holes in PCB also has effects on the insertion. The spreading of surface mount technology (SMT) has generated a need for flexible placement machines that are capable of placing components very fast in a large variety of component types. PCB components that are not placed correctly in the layout cause problems when the board is being assembled by the author. Incorrectly placed components do not solder correctly, which results in a host of reliability problems in this project. The author has made a tape design for packing the rubber key. Tape shape and keys base shape relation have effects on the assembly process.続きを見る
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Mendeley出力
