Patent ID: 7118778

Claim:
An applying method for an adhesive, which is provided to apply an adhesive on a SiO 2 layer of a wafer placed in an closed container, wherein the closed container is connected with a transmission pipeline by a supply vent, wherein the transmission pipeline is used for conveying the adhesive to the closed container, wherein the closed container also includes an exhaust vent, wherein the exhaust vent is externally connected with a first exhaust pipe coupled with a vacuum pump and a second exhaust pipe coupled with a gas-extracting tube, and wherein the applying method comprising: (a) exhausting gas from the first exhaust pipe, so as to eliminate a part of the gas in the closed container; (b) continuing to exhaust the gas from the first exhaust pipe so as to cause bubbling of the adhesive in the transmission pipeline and convey bubbled adhesive to the supply vent; (c) exhausting the gas from the second exhaust pipe and continuing to exhaust the gas from the first exhaust pipe so as to greatly increase exhaust of the gas in the closed container and increase bubbling of the adhesive; and (d) continuing to exhaust the gas from the second exhaust pipe and ceasing exhausting the gas from the first exhaust pipe so as to have the adhesive reach a gasification state, wherein the gasified adhesive is supplied to the closed container from the supply vent, and wherein the gasified adhesive is adhered and coated on the SiO 2 layer.