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:
May. 18, 2004
Filed:
Feb. 21, 2003
Yaw-Huey Lai, Chung Hu, TW;
Aai-Sol Electronics, Taipei Hsien, TW;
Abstract
An improved heat sink is composed of a base member, a cover member, at least one capillary layer, a plurality of hollow columns, a plurality of cooling fins, and a predetermined amount of solder. The base member is provided with an external wall extending upwards and outwards from a peripheral fringe thereof. The cover member is provided with a skirt portion extending downwards and outwards from a peripheral fringe thereof. A vapor chamber is formed between the cover member and the base member. The capillary layer, which is mounted in the vapor chamber, includes at least one plate member and a plurality of convex portions and is spaced apart from the skirt portion at a predetermined distance. The hollow columns are connected with tile cover member and communicate with the vapor chamber. Each of the hollow columns is fitted with a capillary pipe inside. A position in which an inner periphery of the hollow column contacts a top fringe of the internal wall is spaced apart from the capillary pipe at a predetermined distance. The cooling fins are fitted around an outer periphery of the hollow columns and are spaced apart from one another at a predetermined distance. The solder fills between the skirt portion and the base member and between bottoms of the hollow columns and the cover member.