Patent ID: 8894508

Claim:
A golf club head comprising: a striking face portion located at a frontal portion of said golf club head; and a body portion attached to an aft portion of said striking face portion; wherein said striking face portion further comprises; a first outer layer, made out of a first material, forming an exterior surface of said striking face portion; a second backing layer forming an interior surface of said striking face portion; wherein said first outer layer and said second backing layer combine to form a cavity substantially near a geometric center of said striking face portion; and a chip insert, made out of a second material, placed within said cavity; wherein said second material has a Young's modulus that is greater than a Young's modulus of said first material; and wherein said striking face portion has a Face Thickness Ratio of less than about 0.50, said Face Thickness Ratio is defined as a thickness of said first outer layer at said geometric center divided by a thickness of said second backing layer at said geometric center, and wherein said striking face portion is formed using a liquid interface diffusion process.