초록 ▼

A method is provided for cleaning an electronic circuit board having first and second opposing surfaces. The method includes directing a stream of carbon dioxide particles against the first surface. Steam is sprayed toward the first and second surfaces such that condensation of the steam caused by c

A method is provided for cleaning an electronic circuit board having first and second opposing surfaces. The method includes directing a stream of carbon dioxide particles against the first surface. Steam is sprayed toward the first and second surfaces such that condensation of the steam caused by cooling from the CO.sub.2 particles forms a thin film of water on the first surface for conducting electrostatic charge away from the first surface. The CO.sub.2 particles substantially remove residue present on the first surface, thereby cleaning the circuit board.

대표청구항 ▼

[ What is claimed is:] [1.] A method of cleaning an electronic circuit board having first and second opposing surfaces, comprising:a) directing a stream of carbon dioxide (CO.sub.2) particles against the first surface;b) spraying steam towards the first surface;c) condensing the steam by cooling sai

[ What is claimed is:] [1.] A method of cleaning an electronic circuit board having first and second opposing surfaces, comprising:a) directing a stream of carbon dioxide (CO.sub.2) particles against the first surface;b) spraying steam towards the first surface;c) condensing the steam by cooling said steam with the CO.sub.2 particles present on said first surface, wherein said steam forms a film of water on said first surface such that latent heat from said steam prevents icing of said film of water;d) removing residue present on the first surface by said CO.sub.2 particles, thereby cleaning the electronic circuit board.