The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2003
Filed:
Jul. 10, 2001
See Yap Ong, Singapore, SG;
Tong Heng Cheah, Singapore, SG;
Shu Chuen Ho, Singapore, SG;
Teng Hock Kuah, Singapore, SG;
ASM Technology Singapore Pte Ltd, Singapore, SG;
Abstract
A resin body is moulded around a die located on the front surface of a lead frame, and subsequently masking tape adhered to the rear surface of the lead frame is peeled away. While the tape is peeled away, the front surface of the lead frame is clamped by a surface which contains, or which can be deformed to contain, a recess for receiving the resin body. The peeling is performed by firstly separating an edge portion of the tape from the lead frame by a diagonal motion; and subsequently moving the edge portion across the lead frame so as to peel back the tape until its adhered surface faces away from the lead frame. A retrieval plate is urged against the adhered surface, so that the adhered surface becomes adhered to the retrieval plate. This process is repeated for successive lead frames, so that a stack of masking tape sections is formed on the retrieval plate.