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. 01, 2003
Filed:
Jul. 19, 2001
Hamamatsu Photonics K.K., Hamamatsu, JP;
Abstract
In an electron tube , a space S between a periphery part of a semiconductor device and a stem is filled with an insulating resin . The insulating resin functions as a reinforcing member while the electron tube is assembled under high-temperature condition, thereby preventing a bump from coming off a bump connection portion . Since the space S is only partly closed by the resin , the space between the semiconductor device and the stem is ensured a ventilability. That is, no air reservoir is formed between an electron incidence part at the center of the semiconductor device and the surface C of the stem , whereby air expanding at high temperature does not damage the electron incidence part of the back-illuminated semiconductor device