Abstract: For semiconductor manufacturing equipment, a ceramic susceptor that without occurrence of cracking in the course of heating wafers suppresses thermal radiation from the circumferential surface of a wafer placed on the ceramic susceptor, to heighten isothermal quality in the wafer face. A semiconductor-manufacturing-equipment ceramic susceptor (1) including a resistive heating element (3) in the face or interior of ceramic substrates (2a, 2b) has a wafer pocket (5) consisting of a recess that can accommodatingly carry a wafer. The angle that the perimetric inside surface and the bottom face of the wafer pocket (5) form is over 90° and 170° or less, and/or the curvature of the bottom-portion circumferential rim where the perimetric inside surface and the bottom face of the pocket join is 0.1 mm or more. A plasma electrode furthermore may be disposed in the face or interior of the ceramic substrates (2a, 2b) of the ceramic susceptor (1).

Abstract: For semiconductor manufacturing equipment, a ceramic susceptor that without occurrence of cracking in the course of heating wafers suppresses thermal radiation from the circumferential surface of a wafer placed on the ceramic susceptor, to heighten isothermal quality in the wafer face. A semiconductor-manufacturing-equipment ceramic susceptor (1) including a resistive heating element (3) in the face or interior of ceramic substrates (2a, 2b) has a wafer pocket (5) consisting of a recess that can accommodatingly carry a wafer. The angle that the perimetric inside surface and the bottom face of the wafer pocket (5) form is over 90° and 170° or less, and/or the curvature of the bottom-portion circumferential rim where the perimetric inside surface and the bottom face of the pocket join is 0.1 mm or more. A plasma electrode furthermore may be disposed in the face or interior of the ceramic substrates (2a, 2b) of the ceramic susceptor (1).

Abstract: For semiconductor manufacturing equipment a ceramic susceptor is made available in which by optimizing the inter-wiring-line separation in the resistive heating element, damage due to shorting between resistive heating element lines during heating operations is prevented while wafer-surface temperature uniformity is maintained. The ceramic susceptor (1) for semiconductor manufacturing equipment has a resistive heating element (3a) on a surface of or inside ceramic substrate (2), with the smallest angle ? formed by the bottom and lateral sides of the resistive heating element (3a) In a section of the resistive heating element (3a) being 5° or greater. A plasma electrode may be arranged on a surface of or inside the ceramic substrates (2a) of the ceramic susceptor (1). The ceramic substrates (2a) are preferably made of at least one selected from aluminum nitride, silicon nitride, aluminum oxynitride, and silicon carbide.

Abstract: Affords ceramic susceptors, for semiconductor manufacturing equipment, in which wafer-surface isothermal quality during heating operations is heightened by enhancing the degree of planarization of the susceptor wafer-carrying face in its high-temperature region where wafers are processed in the course of manufacturing semiconductors. Ceramic susceptor (1) for semiconductor manufacturing equipment has in the surface or interior of ceramic substrates (2a) and (2b) resistive heating element (3), and a non-heating (ordinary-temperature) arched contour in its wafer-carrying face is a concavity of 0.001 to 0.7 mm per 300 mm. A plasma electrode furthermore may be disposed in ceramic susceptor 1, in the surface or interior of ceramic substrates (2a) and (2b). Preferably, moreover, ceramic substrates (2a) and (2b) are at least one ceramic selected from aluminum nitride, silicon nitride, aluminum oxynitride, and silicon carbide.

Abstract: For semiconductor manufacturing equipment a ceramic susceptor is made available in which the temperature uniformity in the surface of a wafer during heating operations is enhanced by keeping fluctuations in the shape of the susceptor—particularly in the outer diameter along the thickness at normal temperature—under control. The ceramic susceptor (1) for semiconductor manufacturing equipment has a resistive heating element (3) on a surface of or inside ceramic substrates (2a), (2b). The difference between the maximum outer diameter and minimum outer diameter along the thickness of the ceramic susceptor when not heating is 0.8% or less of the average diameter along the wafer-support side. A plasma electrode may be arranged on a surface of or inside the ceramic substrates (2a), (2b) of the ceramic susceptor (1). The ceramic substrates (2a), (2b) are preferably made of at least one selected from aluminum nitride, silicon nitride, aluminum oxynitride, and silicon carbide.