Patent Number: 6,305,279

Title: Tool drive apparatus

Abstract: A tool drive apparatus and method are provided which are particularly well suited for the processing of semiconductor chips on leadframe strips. The tool drive apparatus includes at least one press having a tool-receiving space, a top and bottom tool received in the tool-receiving space, and a drive unit coupled to the at least one press for asynchronous substantially vertical movement of the top tools in adjacent presses. The drive unit includes a rotatable main shaft carrying up to six cam discs each of which may be associated with a press. This arrangement permits the processing of more than one process area on a leadframe strip in the same press cycle in one tool at a time enabling the tools to be placed closer together to shorten the processing line. The tool drive apparatus may also include a latch assembly which, when activated, creates a larger tool-receiving space for repair and maintenance of the tool in one press without affecting other presses in the processing line.

Inventors: Telkamp; Arnold T. M. (Velp, NL), Fierkens; Richard G. T. (Ewijk, NL)

Assignee: FiTel Innovations

International Classification: B30B 1/26 (20060101); B30B 001/00 (); B30B 015/14 (); B30B 001/26 ()

Expiration Date: 10/23/2018