Heat treatable coated article with zinc oxide inclusive contact layer(s)
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-014/34
출원번호
US-0801850
(2010-06-29)
등록번호
US-8226803
(2012-07-24)
발명자
/ 주소
Neuman, George
Lingle, Philip J.
Laird, Ronald E.
Seder, Thomas A
Stachowiak, Grzegorz
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
5인용 특허 :
64
초록▼
A coated article is provided so as to have a fairly high visible transmission (TY or Tvis) to sheet resistance (Rs) ratio (i.e., a ratio Tvis/Rs). The higher this ratio, the better the coated article's combined functionality of providing for both good solar performance (e.g., ability to reflect and/
A coated article is provided so as to have a fairly high visible transmission (TY or Tvis) to sheet resistance (Rs) ratio (i.e., a ratio Tvis/Rs). The higher this ratio, the better the coated article's combined functionality of providing for both good solar performance (e.g., ability to reflect and/or absorb IR radiation) and high visible transmission. In certain example embodiments, coated articles herein may be heat treatable. Coated articles herein may be used in the context of insulating glass (IG) window units, architectural or residential monolithic window units, vehicle window units, and/or the like.
대표청구항▼
1. A method of making a coated article, the method comprising: providing a glass substrate;sputtering a first lower contact layer comprising zinc oxide over a first layer comprising silicon nitride on the substrate using a first oxygen partial pressure;sputtering a first layer comprising silver dire
1. A method of making a coated article, the method comprising: providing a glass substrate;sputtering a first lower contact layer comprising zinc oxide over a first layer comprising silicon nitride on the substrate using a first oxygen partial pressure;sputtering a first layer comprising silver directly over and contacting the first lower contact layer;sputtering a first upper contact layer directly over and contacting the first layer comprising silver;sputtering a second lower contact layer comprising zinc oxide over a second layer comprising silicon nitride, wherein the second silicon nitride layer is located over at least the first layer comprising silicon nitride, the first contact layer, the first layer comprising silver, the first upper contact layer, using a second oxygen partial pressure, wherein the first oxygen partial pressure is greater than the second oxygen partial pressure;sputtering a second layer comprising silver directly over and contacting the second lower contact layer; andsputtering a second upper contact layer directly over and contacting the second layer comprising silver. 2. The method of claim 1, wherein the first oxygen partial pressure is at least 1% higher than the second oxygen partial pressure. 3. The method of claim 1, wherein the first oxygen partial pressure is at least 2% higher than the second oxygen partial pressure. 4. The method of claim 1, further comprising sputter depositing a third layer comprising silicon nitride over the first and second layers comprising silver. 5. The method of claim 1, further comprising heat treating the glass substrate and the coating thereon. 6. The method of claim 1, wherein at least the first layer comprising silicon nitride SixNy is non-stoichiometric and is Si-rich. 7. The method of claim 6, wherein said first layer comprising non-stoichiometric, Si-rich silicon nitride SixNy has an index of refraction “n” of at least 2.05. 8. The method of claim 1, wherein the coated article has a sheet resistance (Rs) of less than or equal to 4.0 after heat treatment. 9. The method of claim 1, wherein the coated article has a ΔE* value (glass side reflective and/or transmissive) of less than or equal to about 4 due to the heat treatment. 10. The method of claim 1, further comprising a layer comprising titanium oxide between the glass substrate and the first layer comprising silicon nitride. 11. The method of claim 10, wherein the layer comprising titanium oxide has a thickness of from 20 to 60 Å and is located between the glass substrate and the first layer comprising zinc oxide, and wherein the coated article has a Total Solar (TS) value of no greater than about 40%. 12. The method of claim 1, wherein at least one of the first and second layers comprising zinc oxide further includes aluminum. 13. A method of making a coated article, the method comprising: providing a glass substrate;disposing a first layer comprising silicon nitride over the glass substrate;sputtering a first lower contact layer comprising zinc oxide over the first layer comprising silicon nitride using a first oxygen partial pressure;sputtering a first layer comprising silver directly over and contacting the first lower contact layer;disposing a first upper contact layer directly over and contacting the first layer comprising silver;disposing a second layer comprising silicon nitride over the first upper contact layer;sputtering a second lower contact layer comprising zinc oxide over the second layer comprising silicon nitride using a second oxygen partial pressure, wherein the second lower contact layer is above the first lower and upper contact layers;sputtering a second layer comprising silver directly over and contacting the second lower contact layer;disposing a second upper contact layer directly over and contacting the second layer comprising silver; andwherein the first oxygen partial pressure is greater than the second oxygen partial pressure, and wherein the first lower contact layer is more oxided than the second lower contact layer.
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