A sample holder includes: a ceramic substrate including one main surface serving as a sample holding surface; a heat-generating resistor located inside or on an other main surface of the ceramic substrate; a metal member having a first surface bonded to, by a bonding layer, and covering the other main surface of the ceramic substrate, the metal member including a through hole penetrating from the first surface to an opposite surface of the metal member; a lead terminal inserted into the metal member; and a conductive portion located inside the bonding layer, the conductive portion electrically connecting the heat-generating resistor and the lead terminal, the conductive portion including a region which extends in a same direction as the other main surface, and separate from the other main surface of the ceramic substrate.

A cooktop appliance defining a reference center and a radial direction extending from the reference center, a circumferential direction extending relative to the reference center, and a vertical direction extending orthogonal to the radial direction is provided. The cooktop appliance includes a ceramic-glass plate, a heating assembly positioned below the ceramic-glass plate, and a programmed magnet centered at the reference center. The programmed magnet is configured to generate a magnetic force along the radial direction.

An electric heater includes a substrate; and a plane heating element disposed on one surface of the substrate, in which the plane heating element includes a pattern portion including a start point and an end point; and an electrode portion connected to the start point and the end point of the pattern portion, and a thickness of the electrode portion is thicker than a thickness of the pattern portion.

An electric heater includes a substrate; and a plane heating element disposed on one surface of the substrate, in which the plane heating element includes a pattern portion including a start point and an end point; and an electrode portion connected to the start point and the end point of the pattern portion, and a thickness of the electrode portion is thicker than a thickness of the pattern portion.

A cooktop appliance or heating coil assembly may include a heating element, a shroud cover, a thermostat, and a spring bracket. The shroud cover may be disposed within the heating element. The shroud cover may include a top wall defining an upper surface and a lower surface. The thermostat may extend vertically between a distal end and an interior end below the distal end. The distal end may be disposed against the shroud cover at the lower surface. The thermostat may be connected in series between the first and second coil sections of the spiral wound sheathed heating element. The spring bracket may be disposed against the shroud cover at the lower surface and bias the shroud cover upward.

An inside-mount countertop-range support for a flush-mount countertop range includes a counter bracket configured to be engaged to an inner edge of an opening defined within a countertop with a top surface. A base flange extends from the counter bracket and into the opening. The inside-mount countertop-range support includes a range having a housing and top member above the housing that extends over the opening and includes a bottom surface, wherein the housing is configured to be disposed within the opening. A range bracket is configured to be coupled to the housing and includes a top flange that is configured to be supported by the base flange, wherein when the top flange rests upon the base flange, the bottom surface of the top member engages and is flush with the top surface of the countertop.

An inside-mount countertop-range support for a flush-mount countertop range includes a counter bracket configured to be engaged to an inner edge of an opening defined within a countertop with a top surface. A base flange extends from the counter bracket and into the opening. The inside-mount countertop-range support includes a range having a housing and top member above the housing that extends over the opening and includes a bottom surface, wherein the housing is configured to be disposed within the opening. A range bracket is configured to be coupled to the housing and includes a top flange that is configured to be supported by the base flange, wherein when the top flange rests upon the base flange, the bottom surface of the top member engages and is flush with the top surface of the countertop.

Disclosed is a method for controlling the temperature of a heater which has a single plate-shaped member formed of a semiconductor substrate, and three or more electrodes formed on a side surface of the single plate-shaped member while being spaced apart from each other in a circumference direction, the method comprising a step for heating the plate-shaped member by supplying a power between the electrodes and sequentially changing the pair of electrodes to which the power is supplied, wherein a period of time in which the power is supplied between the electrodes in the heating step is individually determined for each set of electrodes.

Disclosed is a method for controlling the temperature of a heater which has a single plate-shaped member formed of a semiconductor substrate, and three or more electrodes formed on a side surface of the single plate-shaped member while being spaced apart from each other in a circumference direction, the method comprising a step for heating the plate-shaped member by supplying a power between the electrodes and sequentially changing the pair of electrodes to which the power is supplied, wherein a period of time in which the power is supplied between the electrodes in the heating step is individually determined for each set of electrodes.

Transparent, dyed cook top or hob with improved color display capability, consisting of a glass ceramic with high quartz mixed crystals as predominant crystal phase, whereby the glass-ceramic contains none of the chemical refining agents arsenic oxide and/or antimony, with transmission values of greater than 0.1% in the range of the visible light within the entire wavelength range greater than 450 nm, a light transmission in the visible of 0.8-2.5% and a transmission in the infrared at 1600 nm of 45-85%.