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公开(公告)号：US11791074B2
公开(公告)日：2023-10-17
申请号：US16782280
申请日：2020-02-05
发明人： Makoto Aoki , Jerry Wayne Smith
CPC分类号： H01C17/30 , G03G15/2039 , G03G15/2057 , H05B3/02 , H05B3/12 , H05B3/283 , H05B2203/01 , H05B2203/013 , H05B2203/017 , H05B2203/02 , Y10T29/49099
摘要： A heater includes an aluminum nitride base having equal to or less than 1% impurities, particularly one embodiment having none of polybrominated biphenyl, polybrominated diphenyl ether, hexabromocyclododecane, polyvinyl chloride, chlorinated paraffin, phthalate, cadmium, hexavalent chromium, lead, and mercury. At least one resistive trace of silver and palladium overlies the base as does a conductor of silver and platinum or palladium that electrically connects to the resistive trace to apply an external voltage to the resistive trace for heating thereof. At least four, but optionally five, layers of glass overlie the resistive trace and part of the conductor. A first two consecutive layers of the glass layers define a first glass having a solid content of more than 65% and a viscosity of 100 Pa·s or less. The following two or three consecutive layers of the five layers define a second glass dissimilar to the first.
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公开(公告)号：US11676746B2
公开(公告)日：2023-06-13
申请号：US16782287
申请日：2020-02-05
发明人： Makoto Aoki , Jerry Wayne Smith
CPC分类号： H01C17/30 , G03G15/2039 , G03G15/2057 , H05B3/02 , H05B3/12 , H05B3/283 , H05B2203/01 , H05B2203/013 , H05B2203/017 , H05B2203/02 , Y10T29/49099
摘要： A method of making a heater includes an aluminum nitride base having equal to or less than 1% impurities, particularly one embodiment having none of polybrominated biphenyl, polybrominated diphenyl ether, hexabromocyclododecane, polyvinyl chloride, chlorinated paraffin, phthalate, cadmium, hexavalent chromium, lead, and mercury. The base is fired in a heating unit before any layering. Thereafter, on a topside and backside of the base a conductor layer is layered and allowed to settle and dry before firing. Next, a resistive layer is layered on the base from a resistor paste such that the resistive layer connects to the conductor layer on the topside. The resistor paste is allowed to settle and dry and then the base with the conductor and resistor layers is fired. At least four layers of glass are layered next over the resistive layer, each instance thereof including layering a glass, drying the glass and firing.
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公开(公告)号：US11862366B2
公开(公告)日：2024-01-02
申请号：US18096275
申请日：2023-01-12
发明人： Makoto Aoki , Jerry Wayne Smith
CPC分类号： H01C17/30 , G03G15/2039 , G03G15/2057 , H05B3/02 , H05B3/12 , H05B3/283 , H05B2203/01 , H05B2203/013 , H05B2203/017 , H05B2203/02 , Y10T29/49099
摘要： A method of making a heater includes an aluminum nitride base having equal to or less than 1% impurities, particularly one embodiment having none of polybrominated biphenyl, polybrominated diphenyl ether, hexabromocyclododecane, polyvinyl chloride, chlorinated paraffin, phthalate, cadmium, hexavalent chromium, lead, and mercury. The base is fired in a heating unit before any layering. Thereafter, on a topside and backside of the base a conductor layer is layered and allowed to settle and dry before firing. Next, a resistive layer is layered on the base from a resistor paste such that the resistive layer connects to the conductor layer on the topside. The resistor paste is allowed to settle and dry and then the base with the conductor and resistor layers is fired. At least four layers of glass are layered next over the resistive layer, each instance thereof including layering a glass, drying the glass and firing.
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