Patent ID: 7226865
Filing Date: 2007-06-05
Classification: H01L

Abstract:
1. A method for producing a liquid crystal display apparatus, comprising the steps of: forming a TFT substrate by a manufacturing method comprising: a step of forming a gate line and gate electrode on a first substrate and forming a gate insulating film on said first substrate covering said gate line and said gate electrode; a step of forming a semiconductor film, a semiconductor and ohmic contact film, and a metal film for source/drain electrodes in this order on said gate insulating film; a step of forming a resist mask for a source electrode and a resist mask for a drain electrode on said metal film for source/drain electrodes above said gate electrode; a step of etching said metal film for source/drain electrodes and said semiconductor and ohmic contact film by using said resist mask for a source electrode and said resist mask for a drain electrode as masks to form a laminated film pattern consisting of said semiconductor and ohmic contact film and said metal film for source/drain electrodes; a step of reflowing said resist mask for a source electrode and said resist mask for a drain electrode in a lateral direction to connect said resist mask for a source electrode and said resist mask for a drain electrode together to thereby form a connected resist mask, said connected resist mask completely covering said laminated film pattern; and a step of etching said semiconductor film by using said connected resist mask as a mask to form a semiconductor island; disposing a second substrate on a side of said semiconductor island of said first substrate to face said first substrate, thereby forming an opposing substrate; and filling a liquid crystal composition into a gap between said TFT substrate and said opposing substrate, said step of forming said connected resist mask being carried out by heating said resist mask for a source electrode and said resist mask.