发明名称 Method and apparatus for stencil printing printed circuit boards
摘要 The method includes loading a printed circuit board (PCB) to a printing machine; aligning a stencil to the PCB when the PCB has been loaded to the printing machine; setting a snap-off distance; dispensing a volume of solder paste onto the stencil, the volume of solder paste being dispensed onto the stencil regardless of whether the PCB has been loaded to the printing machine; placing a squeegee in contact with the stencil at a predetermined pressure; moving the squeegee across the stencil at a predetermined speed; waiting a constant period of time; and repeating.
申请公布号 US5553538(A) 申请公布日期 1996.09.10
申请号 US19950380476 申请日期 1995.01.30
申请人 MOTOROLA, INC. 发明人 FREITAG, BRANDON R.
分类号 B41F15/08;B41M1/12;H05K3/12;H05K3/24;(IPC1-7):B41M1/12;B41F15/12 主分类号 B41F15/08
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