Fluxless soldering sample pretreating system

申请公布号：

US5499754(A)

申请号：

US19940339770

申请日期：

1994.11.15

申请公布日期：

1996.03.19

申请人：

MCNC

发明人：

BOBBIO, STEPHEN M.;KOOPMAN, NICHOLAS G.;NANGALIA, SUNDEEP

分类号：

B23K1/20;B23K35/38;H05K3/34;(IPC1-7):C23F1/02;B23K3/08

主分类号：

B23K1/20

摘要：

A fluxless soldering sample pretreating system includes a sample chamber having an opening therein and a sample holder. A sample chamber extension extends outwardly from the opening to define a passageway from the sample chamber extension, through the opening, and into the sample chamber. A fluorine-containing gas is supplied into the sample chamber extension. Am energy source such as a microwave oven surrounds the sample chamber extension. The microwave oven produces microwave energy in the sample chamber extension to form a plasma therein and dissociate the fluorine-containing gas into atomic fluorine. A perforated aluminum plate extends transversely across the passageway and blocks the plasma from traversing the passageway from the sample chamber extension into the sample chamber, while allowing the atomic fluorine to traverse the passageway from the sample chamber extension into the sample holder. A second chamber extension, gas supply and microwave oven may be added to improve uniformity for large samples.