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.

Date of Patent:
Nov. 13, 2018

Filed:

May. 12, 2017
Applicant:

Stmicroelectronics, Inc., Calamba, PH;

Inventors:

Aaron Cadag, Calamba, PH;

Ian Harvey Arellano, Bauang, PH;

Ela Mia Cadag, Calamba, PH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01); H01L 23/495 (2006.01); H01L 23/00 (2006.01); H01L 23/31 (2006.01); H01L 21/683 (2006.01); H01L 21/56 (2006.01); H01L 21/78 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49513 (2013.01); H01L 21/565 (2013.01); H01L 21/568 (2013.01); H01L 21/6836 (2013.01); H01L 21/78 (2013.01); H01L 23/315 (2013.01); H01L 23/3114 (2013.01); H01L 23/4952 (2013.01); H01L 23/49541 (2013.01); H01L 24/32 (2013.01); H01L 24/49 (2013.01); H01L 24/73 (2013.01); H01L 24/83 (2013.01); H01L 24/85 (2013.01); H01L 24/92 (2013.01); H01L 24/97 (2013.01); H01L 2221/68381 (2013.01); H01L 2224/32245 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48106 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/73265 (2013.01); H01L 2224/83005 (2013.01); H01L 2224/92247 (2013.01);
Abstract

A semiconductor package formed utilizing a removable backside protective layer includes a leadframe, a die pad, leads and a molding compound around them. The first surface of the die pad and leads are exposed to an external environment by the plurality of recesses. The recesses are formed by coupling a removable backside protective layer to the leadframe before applying the molding compound. After the molding compound is applied and cured, the backside protective layer is removed to expose the first surface of the die pad and the first surfaces of the leads so the semiconductor package may be mounted within an electronic device. The removable backside protective layer protects the die pad and the leads from mold flashing and residue when forming the semiconductor package during the fabrication process.


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