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はい.
Electronic parts on PCB generally contain lead and other sulfides. In the past decades, many manufacturers have said that they will not use electronic components containing lead, but it is not credible and possible. Lead is an important material in electronic components. It is practical to reduce lead but impossible to eliminate it.
続きを読む: 環境を守ること
#PCB Design #PCB Material
を作っています 4 2.4GHz チップ アンテナに接続された Bluetooth MCU を使用する層 PCB プロトタイプ. フィードラインをどうするか考え中, 中間層のいずれかに埋めるべきかどうか, または最上層に残しておきます. を取得するには 50 オーム線, 13ミル幅の最上層を選択するか、7マイル幅の埋め込みマイクロストリップを選択するべきでしょうか?
洗濯機が動かない. 1年前に購入したばかりなので, 含まれているコンポーネントは古くない, 私は思う. なのでPCBから確認したいのですが. これに関するヒントはありますか?
私のEDAソフトウェア (PCAD, でも他の人もこれをやっていると思います) 銅を流し込んだビアにサーマルリリーフを追加します. 使用は何ですか? ビアははんだ付けされていない.
