Provided is a method of forming a semiconductor package. In the method, a first package including a first chip on a first substrate is formed, a second package including a second chip on a second substrate is formed, a molding cap provided with a via hole and a recess structure configured to receive the first chip is formed, and the second package is provided on the first package with the molding cap being therebetween such that the recess receives the first chip. The via hole and the recess structure are simultaneously formed.