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. 26, 1992
Filed:
Jun. 07, 1991
Takashi Takeuchi, Tokyo, JP;
Takeyuki Nakagawa, Tokyo, JP;
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Abstract
A clamping device for bonding machines used in manufacturing semiconductors including a clamp receiver, a rotatable lock key movable in a vertical direction on the clamp receiver, an air cylinder which pulls up and down the lock key, and a clamp which has a bonding window for bonding tool and an opening for the lock key passing through it. The clamp is mounted on the clamp receiver by letting the lock key pass through the opening, and then the lock key is turned so as not to accord with the opening. When the air cylinder is actuated, the lock key is pulled down and presses the clamp against the clamp receiver, securely positioning the clamp on the clamp receiver. Thus, the changing operation of the clamp is easily and quickly performed because the clamp can be removed by merely rotating the lock key and turning on and off the air cylinder.