Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Reexamination Certificate
2008-01-08
2008-01-08
Parker, Kenneth (Department: 2815)
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
C257SE33057, C257S415000, C257S417000, C257S678000, C257S692000, C250S2140RC, C250S239000, C438S106000, C438S108000, C338S004000
Reexamination Certificate
active
11057932
ABSTRACT:
To provide a circuit device suitable for incorporating a semiconductor element emitting or receiving short-wavelength light. The circuit device includes a casing, a semiconductor element, and a cover portion. The casing has an opening on the top face thereof. The semiconductor element is incorporated in the casing and emits or receives light. The cover portion is made of a material transparent to the light and covers the opening. In the periphery of the opening, a concave portion is provided, and a portion of the cover portion with a certain thickness on the bottom side is accommodated in the concave portion. Since the portion of the cover portion with the certain thickness on the bottom side is accommodated in the concave portion provided in the upper portion of the casing, the position of the cover portion is accurately fixed. Accordingly, it is possible to obtain accurate relative positions of the semiconductor element accommodated within the casing and the cover portion.
REFERENCES:
patent: 4399707 (1983-08-01), Wamstad
patent: 4732042 (1988-03-01), Adams
patent: 4843454 (1989-06-01), Kato et al.
patent: 5436492 (1995-07-01), Yamanaka
patent: 5852320 (1998-12-01), Ichihashi
patent: 5859759 (1999-01-01), Moriyama et al.
patent: 6214634 (2001-04-01), Osajda et al.
patent: 6229190 (2001-05-01), Bryzek et al.
patent: 11-340257 (1999-12-01), None
patent: 2001-077277 (2001-03-01), None
patent: 2001-156278 (2001-06-01), None
Chu Chris C.
Fish & Richardson P.C.
Kanto Sanyo Semiconductor Co., Ltd.
Parker Kenneth
Sanyo Electric Co,. Ltd.
LandOfFree
Circuit device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3920294