摘要:
A capacitor having a high quality and a manufacturing method of the same are provided. A capacitor (10) has a lower electrode (13a) formed on an oxide film (12), a dielectric layer (14) formed on the lower electrode (13a), an upper electrode (15a,15c) formed so as to face the lower electrode (13a) with the dielectric layer (14) between, and an upper electrode (15b,15d) formed so as to cover the upper electrode (15c), an opening portion (62g) of the upper electrode (15c) and an opening portion (61g) of the dielectric layer (14). By forming the upper electrode (15a,15c) on the dielectric layer (14), it is possible to pattern the dielectric layer (14) by using the upper electrode (15a,15c) as a mask, and provide a capacitor (10) having a high-quality dielectric layer (14) by preventing impurity diffusion into the dielectric layer (14). By forming the upper electrode (15b,15d) on the dielectric layer (14), it is possible to prevent the dielectric layer (14) from being exposed to etching liquid, liquid developer, etc.
摘要:
Atmosphere in processing apparatus (100) is adjusted to, for example, oxygen atmosphere, by gas supply source (112) and the like. Interior of thermal processing apparatus (101) is set to oxygen atmosphere and raised to predetermined temperature. A wafer boat (161) containing wafer W having dielectric precursor layer formed is loaded into thermal processing apparatus (101) at speed at which no defects are produced in wafer W. Thereafter, reaction tube of thermal processing apparatus (101) has its internal temperature raised to baking temperature, to perform baking for predetermined time. The wafer W is cooled to predetermined temperature in thermal processing apparatus (101) and then to room temperature in processing apparatus (100), and carried out from processing apparatus (100). Before dielectric precursor layer is baked, it is maintained for predetermined time at temperature higher than temperature at which solvent in dielectric precursor layer is volatilized and lower than temperature at which dielectric precursor layer starts crystallization to vaporize residual solvent.
摘要:
A capacitor having a high quality and a manufacturing method of the same are provided. A capacitor (10) has a lower electrode (13a) formed on an oxide film (12), a dielectric layer (14) formed on the lower electrode (13a), an upper electrode (15a,15c) formed so as to face the lower electrode (13a) with the dielectric layer (14) between, and an upper electrode (15b,15d) formed so as to cover the upper electrode (15c), an opening portion (62g) of the upper electrode (15c) and an opening portion (61g) of the dielectric layer (14). By forming the upper electrode (15a,15c) on the dielectric layer (14), it is possible to pattern the dielectric layer (14) by using the upper electrode (15a,15c) as a mask, and provide a capacitor (10) having a high-quality dielectric layer (14) by preventing impurity diffusion into the dielectric layer (14). By forming the upper electrode (15b,15d) on the dielectric layer (14), it is possible to prevent the dielectric layer (14) from being exposed to etching liquid, liquid developer, etc.
摘要:
Atmosphere in processing apparatus (100) is adjusted to, for example, oxygen atmosphere, by gas supply source (112) and the like. Interior of thermal processing apparatus (101) is set to oxygen atmosphere and raised to predetermined temperature. A wafer boat (161) containing wafer W having dielectric precursor layer formed is loaded into thermal processing apparatus (101) at speed at which no defects are produced in wafer W. Thereafter, reaction tube of thermal processing apparatus (101) has its internal temperature raised to baking temperature, to perform baking for predetermined time. The wafer W is cooled to predetermined temperature in thermal processing apparatus (101) and then to room temperature in processing apparatus (100), and carried out from processing apparatus (100). Before dielectric precursor layer is baked, it is maintained for predetermined time at temperature higher than temperature at which solvent in dielectric precursor layer is volatilized and lower than temperature at which dielectric precursor layer starts crystallization to vaporize residual solvent.
摘要:
An apparatus for detecting amplitudes of frequency components contained in a vibration signal, characterized in that the apparatus comprises: a resonator array (20) comprising: first and second diaphragms (21 and 22) and a transversal beam (23) connected between them through which a vibration signal transverses from the first to the second diaphragm (22), a plurality of lateral beams (24) extending from the transversal beam (23) have different lengths to have different vibration resonant frequencies, respectively; and a plurality of first electrodes (25) attached to the lateral beams (24) and a plurality of second electrodes (26) which are stationary, the respective pairs of electrodes (25 and 26) forming capacitance sensors, a capacitance each of which varies in response to distance between the electrodes (25 and 26); a plurality of oscillators (11), a plurality of counters (4) for counting outputs of the oscillators (11), and signal processing means (2) for processing the count values from the counters (4) to provide amplitudes of respective frequency components which are contained in the vibration signal applied to the first diaphragm (21).