Patent ID: 8122850
Filing Date: 2012-02-28
Classification: H01L

Abstract:
1. An apparatus for processing a polysilazane film, comprising: a reaction container having a process area configured to accommodate a plurality of target substrates placed at intervals in a vertical direction, the target substrates being provided with a polysilazane coating film formed thereon; a heater configured to heat the process area; an exhaust system configured to exhaust the reaction container; a supply system configured to supply a process gas into the reaction container, the supply system including a portion configured to supply water vapor into the reaction container; and a controller configured to control an operation of the apparatus, wherein the controller includes a process recipe and control program both stored in the controller such that the control program causes the controller to read the process recipe and control the apparatus to conduct a baking sequence of baking the polysilazane coating film, the baking sequence including a first heat process, a second heat process, and a third heat process sequentially applied onto the polysilazane coating film in this order; the first heat process being formed while supplying water vapor into the process area, while setting the process area and setting the process area at a first temperature of from 390° C. to 410° C.; the second heat process being formed while supplying water vapor into the process area and setting the process area at a second temperature of from 600° C. to 800° C.; and the third heat process being performed while setting the process area at a third temperature of from 800° C. to 1000° C., wherein the first and second heat process are directly connected to each other by a first heating-up period and the second and third heat processes are directly connected to each other by a second heating-up period such that each of the first and second heating-up period is arranged to increase temperature of the process area with time without a temperature decrease halfway therethrough, and the process area is kept vacuum-exhausted to a vacuum pressure of from 133 to 93,100 Pa over the first, second, and third heat processes.