Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Reexamination Certificate
2005-03-29
2005-03-29
Tran, Minhloan (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
C257S358000, C257S359000, C257S363000, C257S380000, C257S489000, C257S537000, C338S308000, C338S320000
Reexamination Certificate
active
06873028
ABSTRACT:
A chip resistor comprising a substrate having opposite parallel symmetrical first and second surfaces, a central longitudinal plane of symmetry, separate and spaced first and second resistive layers on the first and second surfaces. The resistive layers are electrically connected in parallel to each other and the first and second surfaces of the substrate are symmetrically located with respect to and equidistant from a central longitudinal plane. Thus, when electrical current passes through the resistive layers, a temperature distribution within the substrate will be substantially symmetrical about the central longitudinal plane of the substrate for eliminating thermal bending thereof. The splitting of the surge current between two resistive layers results in the lower temperature in each resistive layer when compared with the temperature in the single resistive layer of the prior art chip resistor loaded by the same current.
REFERENCES:
patent: 3998980 (1976-12-01), Antes et al.
patent: 4064477 (1977-12-01), Thompson
patent: 4901052 (1990-02-01), Chapel, Jr. et al.
patent: 5084694 (1992-01-01), Kikuchi et al.
patent: 5321386 (1994-06-01), Ishiguro
patent: 5464564 (1995-11-01), Brown
patent: 5510594 (1996-04-01), Mori et al.
patent: 5543775 (1996-08-01), Huck
patent: 5585776 (1996-12-01), Anderson et al.
patent: 5815065 (1998-09-01), Hanamura
patent: 5841183 (1998-11-01), Ariyoshi
patent: 5874887 (1999-02-01), Kosinski
patent: 5907274 (1999-05-01), Kimura et al.
patent: 5929746 (1999-07-01), Edwards, Jr. et al.
patent: 5999085 (1999-12-01), Szwarc et al.
patent: 6404324 (2002-06-01), Witt et al.
patent: 6529115 (2003-03-01), Szwarc et al.
patent: 20010026211 (2001-10-01), Shindoh et al.
patent: 3035717 (1982-04-01), None
patent: 247 685 (1987-05-01), None
patent: 04214601 (1992-05-01), None
patent: 4-214601 (1992-05-01), None
patent: 04239101 (1992-08-01), None
patent: 5-90003 (1993-04-01), None
patent: 05090003 (1993-04-01), None
patent: 5-121201 (1993-05-01), None
patent: 05-90003 (1993-09-01), None
patent: 6-5401 (1994-01-01), None
patent: 06089801 (1994-03-01), None
patent: 9-63805 (1997-03-01), None
patent: 11-251105 (1999-09-01), None
patent: 11254249 (1999-12-01), None
patent: 2000200601 (2000-07-01), None
JP 05-090003, Computer translated document.
KOA Flat Chip Surge Current Thick Film SG73 (1 page).
Panasonic Anti-Surge Thick Film Chip Resistor ERJ P08 (3 pages).
Phycomp Surge Chip Resistor SRC01 (7 pages).
BI Technologies thick Film Surge Resistor BSR (4 pages).
TT Electroncs Pulse Withstanding Chip Resistor PWC (6 pages).
McKee Voorhees & Sease, P.L.C.
Sefer Ahmed N.
Tran Minhloan
Vishay Intertechnology Inc.
LandOfFree
Surge current chip resistor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surge current chip resistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surge current chip resistor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3375474