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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0195402 (2014-03-03) |
등록번호 | US-9499898 (2016-11-22) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 40 인용 특허 : 672 |
A method of forming thin film heater traces on a wafer chuck includes positioning a pattern, that forms openings corresponding to a desired layout of the heater traces, in proximity to the wafer chuck. The method includes sputtering a material toward the pattern and the wafer chuck such that a porti
A method of forming thin film heater traces on a wafer chuck includes positioning a pattern, that forms openings corresponding to a desired layout of the heater traces, in proximity to the wafer chuck. The method includes sputtering a material toward the pattern and the wafer chuck such that a portion of the material passes through the openings and adheres to the wafer chuck to form the heater traces. A method of forming thin film heater traces on a wafer chuck includes sputtering a blanket layer of a material onto the wafer chuck, and patterning a photoresist layer utilizing photolithography. The photoresist layer covers the blanket layer in an intended layout of the heater traces, exposing the blanket layer in areas that are not part of the intended layout. The method removes the areas that are not part of the intended layout by etching, and removes the photoresist layer.
1. A method of forming thin film heater traces on a wafer chuck, comprising: positioning a pattern in proximity to the wafer chuck, the pattern forming openings corresponding to a desired layout of the thin film heater traces, andsputtering a material toward the pattern and the wafer chuck such that
1. A method of forming thin film heater traces on a wafer chuck, comprising: positioning a pattern in proximity to the wafer chuck, the pattern forming openings corresponding to a desired layout of the thin film heater traces, andsputtering a material toward the pattern and the wafer chuck such that a portion of the material passes through the openings and adheres to the wafer chuck to form the thin film heater traces; wherein:the wafer chuck comprises ceramic, andthe ceramic forms vacuum channels configured to secure a wafer against the wafer chuck in proximity to the thin film heater traces. 2. The method of claim 1, the material comprising one or more of copper, molybdenum, and alloys thereof. 3. The method of claim 1, wherein the desired layout includes landing pads configured for electrical connections to the thin film heater traces. 4. The method of claim 3, further comprising depositing a dielectric layer over the thin film heater traces. 5. The method of claim 4, further comprising opening vias through the dielectric layer to provide access for the electrical connections to the landing pads. 6. The method of claim 1, the wafer chuck comprising a conductor with an unbroken dielectric layer thereon, and wherein the thin film heater traces form on an opposite side of the unbroken dielectric layer from the conductor. 7. The method of claim 6, the unbroken dielectric layer comprising a first dielectric layer, and further comprising depositing a second dielectric layer over the thin film heater traces. 8. The method of claim 7, wherein the desired layout includes landing pads configured for electrical connections to the thin film heater traces, and further comprising opening vias through the second dielectric layer to provide access for the electrical connections to the landing pads. 9. The method of claim 1, wherein: the pattern comprises a stencil mask;positioning comprises engaging the stencil mask in proximity to the wafer chuck using a fixture; andfurther comprising disengaging the stencil mask. 10. A method of forming thin film heater traces on a wafer chuck, comprising: positioning a pattern in proximity to the wafer chuck, the pattern forming openings corresponding to a desired layout of the thin film heater traces, andsputtering a material toward the pattern and the wafer chuck such that a portion of the material passes through the openings and adheres to the wafer chuck to form the thin film heater traces; wherein:the pattern comprises an inverse photoresist image formed by photolithography;positioning comprises forming the inverse photoresist image on the wafer chuck; andfurther comprising removing the inverse photoresist image. 11. A method of forming thin film heater traces on a wafer chuck, comprising: sputtering a material onto the wafer chuck to form a blanket layer of the material;patterning a photoresist layer utilizing photolithography, the photoresist layer covering the blanket layer in an intended layout of the thin film heater traces, while exposing the blanket layer in areas that are not part of the intended layout;removing the areas that are not part of the intended layout by etching; andremoving the photoresist layer.
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