Patent ID: 7572402

Claim:
A method of creating a sealed bridge break between circuits; providing a template for forming a lead frame thereon; providing a one piece circuit frame having one or more circuits connected by one or more bridges; providing one or more bridge break tools each having a collar and a punch; providing a polymer material; placing said one piece frame on the surface of said molding tool; placing said collar of each of said one or more bridge break tools against said one piece frame; punching one or more bridge breaks between said one or more bridges using said one or more bridge break tools; lifting said punch of each of said one or more bridge break tools away from said bridge break and keeping said collar of each of said one or more bridge break tools against said one piece frame; flowing said molten polymer material through said collar around said one piece frame and said one or more bridge breaks; retracting said one or more bridge break tools; and curing said molten polymer material to form a solid lead frame structure having bridge breaks that are sealed by said polymer material.