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:
Jul. 16, 2013
Filed:
Jan. 11, 2012
Takashi Katsuki, Nagano, JP;
Takashi Katsuki, Nagano, JP;
Fuji Electric Co., Ltd., , JP;
Abstract
A method of manufacturing a semiconductor apparatus according to aspects of the invention can include the steps of coating solder on an predetermined area in the upper surface of a lead frame, mounting a chip on solder and melting solder with a hot plate for bonding the chip to the lead frame. The method can also include wiring with bonding wires, turning lead frame upside down, placing lead frame turned upside down on heating cradle, coating solder, the melting point of which is lower than the solder melting point and mounting electronic part on solder; and melting solder with heating cradle for bonding electronic part to lead frame. The bonding with solder can be conducted at a high ambient temperature. Aspects of the semiconductor apparatus can facilitate mounting semiconductor devices and electronic parts on both surfaces of a lead frame divided to form wiring circuits without through complicated manufacturing steps.