| 摘要 |
Methods of fabricating leadless packages are described that facilitate increased contact density. Each device area in a lead frame panel has a die attach pad and a multiplicity of conductive contacts. The contacts are carried by tie bars and the die attach pad is carried by support bars that extend from the contacts. During assembly, the lead frame panel is held in position while the die attach pad support bars are severed. Once the die attach pad support bars are severed, an adhesive tape is adhered to the bottom surface of the lead frame panel so that the die attach pad may be held in position relative to its associated contacts. After the adhesive tape has been applied, the leadless packages may be assembled in a conventional manner. |
