Source: http://www.google.com/patents/US7145106?dq=mezick
Timestamp: 2017-09-22 22:43:25
Document Index: 659458076

Matched Legal Cases: ['art.\n8', 'art.\n11', 'art 1', 'art 3', 'art 1', 'art 1', 'art 3', 'art 1', 'art 3', 'art 3', 'art 1', 'art 5', 'art 1', 'art 1', 'art 1', 'art 3', 'art 3', 'art 1', 'art 3', 'art 1', 'art 1', 'art 3', 'art 3', 'art 1', 'art 1', 'art 3', 'art 1', 'art 3', 'art 5', 'art 1', 'art 3', 'art 20']

Patent US7145106 - Heater module for semiconductor manufacturing equipment - Google Patents
Heater module, and semiconductor manufacturing equipment in which the heater module is utilized, for raising the cooling speed of a post-heating heater markedly more than conventional, and that can contribute toward bettering and improving productivity, without accompanying scaling-up of and cost increases...http://www.google.com/patents/US7145106?utm_source=gb-gplus-sharePatent US7145106 - Heater module for semiconductor manufacturing equipment
Publication number US7145106 B2
Application number US 11/160,856
Also published as CN1547760A, CN100353493C, EP1511069A1, US6963052, US20040238523, US20050242079, US20070068921, WO2003105199A1
Publication number 11160856, 160856, US 7145106 B2, US 7145106B2, US-B2-7145106, US7145106 B2, US7145106B2
Inventors Akira Kuibira, Hirohiko Nakata
US 7145106 B2
a heater part for controlled heating of a wafer placed on an obverse face thereof, the heater part stationary relative to a reaction chamber floor; and
2. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein the heat capacity of said block part is not less than 20% of the total heat capacity of said heater part and said block part.
bringing said block part into abutment with said heater part when the heater module is to heat; and
moving said block part away from said heater part when the heater module is to be cooled, to quicken the speed with which said heater part cools.
separating said block part from said heater part when the heater module is to heat; and
moving said block part into abutment with said heater part for conducting heat into said block part when the heater module is to be cooled, to quicken the speed with which said heater part cools.
5. A method of operating a heater module for semiconductor manufacturing equipment as set forth in claim 1, the method comprising: bringing said block part into abutment with said heater part; and vacuum-chucking said block part to said heater part to fix said block part to said heater part.
8. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein said heater part is made of ceramic, and a heating element is formed therein.
9. A heater module for semiconductor manufacturing equipment as set forth in claim 8, wherein the ceramic is at least one selected from the group consisting of aluminum oxide, aluminum nitride, silicon nitride, silicon carbide, and boron nitride.
10. A heater module for semiconductor manufacturing equipment as set forth in claim 8, wherein said heater part is superficially covered with metal at least where said heater part abuts with said block part.
11. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein said block part is at least one selected from the group consisting of aluminum, magnesium, copper, iron, stainless steel, aluminum oxide, aluminum nitride, silicon nitride, silicon carbide, and boron nitride.
12. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein said block part is either identical or similar to said heater part in form, and said block part in diametrical dimension is within ±25% of said heater part in diametrical dimension.
13. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein either said heater part or said block part is shifted relative to the other by means of oil pressure.
14. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein the cooling speed of said heater part is 10° C./min or more.
15. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein while a wafer set in place on said heater part is being cooled, the heater module has an isothermal rating that is within ±1%.
16. A heater module for semiconductor manufacturing equipment as set forth in claim 1, utilized in CVD equipment, etcher equipment, coater/developer equipment, or a low-k dielectric baking device.
17. Semiconductor manufacturing equipment having installed therein a heater module for semiconductor manufacturing equipment as set forth in claim 1.
18. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein said block part is shiftable into abutment on a bottom part of a chamber in the semiconductor manufacturing equipment.
19. A heater module for semiconductor manufacturing equipment as set forth in claim 18, wherein the chamber bottom is water cooled.
20. A heater module for semiconductor manufacturing equipment as set forth in claim 1, wherein either said heater part or said block part is shifted relative to the other by means of air pressure.
One specific example of a first aspect of the present invention in a heater module is depicted in FIG. 1. The heater module is furnished with heater part 1 a in the interior of which a heating element 2 is formed, and block part 3 a provided at the reverse side of heater part 1 a to be shiftable up and down along guide shafts 4, wherein during heating heater part 1 a and block part 3 a are in abutment, as indicated in FIG. 1( a).
When the heater module is to heat, heater part 1 a and block part 3 a are united to form a large-heat-capacity heater; and when it is to be cooled, block part 3 a is, as depicted in FIG. 1( b), parted away from heater part 1 a, descending toward the bottom part 5 of the equipment chamber. Accordingly, heat radiation is promoted, and the cooling speed of heater part 1 a is hastened, by the fact that heater part 1 a is left on its own with a smaller heat capacity.
Likewise, in the specific instance illustrated in FIG. 2 for example, as the heater module in a second aspect, heater part 1 b and block part 3 b as shown in FIG. 2( a) are separated during heating, and during cooling block part 3 b is, as indicated in FIG. 2( b), elevated to abut on the reverse side of heater part 1 b, which is stationary. The abutting of block part 3 b lets the cooling speed of heater part 1 b be sped, because the heat in heater part 1 b is transmitted to block part 3 b, which has individuated heat capacity.
In a heater module depicted in FIG. 3, further in the second aspect of the present invention, block part 3 c is stationary and heater part 1 c shifts up and down along the guide shafts 4, apart from which the heater module is the same as that of FIG. 2. In particular, during heating, heater part 1 c and block part 3 c are as shown in FIG. 3( a) separated, and during cooling, by bringing down heater part 1 c to abut on block part 3 c on the bottom part 5 of the chamber, as indicated in FIG. 3( b), the heat in heater part 1 c is transmitted to block part 3 c.
Another consideration is that in situations where a heater is cooled by heat radiation, with cooling speed being influenced by surface area, the temperature in the vicinity of the heater lateral side has a greater tendency to drop because the surface area there is generally large compared with the middle portion, and during cooling the isothermal quality is consequently liable to deteriorate. With a heater module as given by the present invention, however, the heater part cools at a speed quite significantly faster than the speed of cooling through the lateral side, and especially with the heater module in the second aspect, because heat passes to the block part by means of thermal conduction the isothermal quality during cooling is enhanced by a wide margin. In concrete terms, by optimizing the heater—and block—part parameters, it is possible to obtain an isothermal rating during cooling of within ±1%.
Heater Block Percent Shifting Cooling (±%)
part part heat & holding speed When When
Sample material material capacity fast (° C./min) heated cooled
From the foregoing results, it is evident that with whichever of the samples as modules by the present invention high heater-cooling speeds of several °C./min or were obtained, and that isothermal ratings of within ±1% when heated and when were sustained. In particular, it is evident that by making the percent heat capacity block part 20% or less, extremely high heater-cooling speeds of 10° C./min or more achieved even as superior isothermal ratings are maintained.
A heater module was assembled utilizing the same heater part and block part as with Sample 4 in the foregoing Embodiment 1, but the reverse face of the AlN-made heater part—i.e., the face where it abuts with the Al—made block part—was covered with a Cu layer 0.2 mm in thickness.
The same testing and evaluation as with Embodiment 1 were performed on this heater module, with the result being that the heater cooling speed and the isothermal rating were the same as with Sample 4 in Embodiment 1. With Sample 4 in Embodiment 1, however, at 500 cycles chips 0.1–0.2 mm in diameter appeared in the edge of the reverse face of the heater part, but with the present Embodiment 2 sample, no chips or like flaws were discernable at all.
US5140895 * Oct 3, 1990 Aug 25, 1992 Aida Engineering Co., Ltd. Valve mechanism for controlling a pressure difference between an upper and a lower chamber of a hydraulic cylinder for a die cushion for a press
US6963052 * May 19, 2003 Nov 8, 2005 Sumitomo Electric Industries, Ltd. Heater module for semiconductor manufacturing equipment
CN1297670A Mar 2, 1999 May 30, 2001 Fsi国际公司 Combination bake/chill apparatus incorporating low thermal mass, thermally conductive bakeplate
JP2000164601A Title not available
JPH0737708A Title not available
International Classification H01L21/3065, C23C16/00, C23C16/46, H01L21/00, H05B3/68, H01L21/205