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:
Apr. 07, 2015
Filed:
May. 20, 2014
Renesas Electronics Corporation, Kawasaki-shi, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
To stably remove a resin body formed in a supply route of a resin in a sealing step. A leadframe has, in a sub-runner portion thereof, a sub-through-hole. The sub-through-hole has, along a first direction along which the sub-runner portion extends, a first portion located on the side of a main-runner portion and a second portion located on the side of a gate portion relative to the first portion. In a plan view, an opening width of the sub-through-hole in the first direction is greater than that of the sub-through-hole in a second direction perpendicular to the first direction. In a plan view, an opening width of the sub-through-hole in the second direction gradually decreases from the first portion to an end portion of the second portion on the side of the gate portion.