Patent ID: 9653306
Date: 2017-05-16
CPC Classifications: H01L

Claim:
1. A method for forming a crystalline cobalt silicide film, comprising: applying to a surface made of crystalline silicon a solution of a compound represented by the following formula (1A) or (1B): wherein each X in the formulas (1A) and (1B) is a hydrogen atom or a halogen atom, n is an integer of 1 to 10, and m is an integer of 3 to 10, or a polymer thereof and a zero-valent cobalt complex in an organic solvent to form a coating film; heating the coated film at 550 to 900° C. so as to form a two-layer film which is composed of a first layer made of a crystalline cobalt silicide on the surface made of silicon and a second layer containing a particulate cobalt silicide in a matrix composed of silicon oxide containing carbon on the first layer; and removing the second layer of the two-layer film.