Patent ID: 6846519

Claim:
A method for electroless deposition of a material in the form a thin film of said material on at least one side of a substrate at a substrate temperature from a deposition solution at a deposition solution temperature in a working chamber of an electroless deposition apparatus, comprising: providing said apparatus with a substrate holder equipped with a substrate cooler and a substrate heater; placing said substrate into said substrate holder in a position of said at least one side of the substrate facing upward; supplying said deposition solution into said apparatus; adjusting a difference between said deposition solution temperature and said substrate temperature to a predetermined value at least with the use of at lease one of said substrate cooler and a said substrate heater; maintaining said difference between said deposition solution temperature and said substrate temperature at said predetermined value; conducting said electroless deposition; and discontinuing said electroless deposition when said thin film reaches a predetermined thickness.