TW201818447A - 一種薄膜的製備方法 - Google Patents
一種薄膜的製備方法 Download PDFInfo
- Publication number
- TW201818447A TW201818447A TW105137971A TW105137971A TW201818447A TW 201818447 A TW201818447 A TW 201818447A TW 105137971 A TW105137971 A TW 105137971A TW 105137971 A TW105137971 A TW 105137971A TW 201818447 A TW201818447 A TW 201818447A
- Authority
- TW
- Taiwan
- Prior art keywords
- silicon
- oxide layer
- layer
- silicon wafer
- preparing
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 109
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 109
- 239000010703 silicon Substances 0.000 claims abstract description 109
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 45
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000010409 thin film Substances 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000000137 annealing Methods 0.000 claims description 13
- 239000000356 contaminant Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000011109 contamination Methods 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- -1 hydrogen ions Chemical class 0.000 claims description 6
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003989 dielectric material Substances 0.000 abstract 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 51
- 239000000758 substrate Substances 0.000 description 19
- 230000008901 benefit Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1203—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/0262—Reduction or decomposition of gaseous compounds, e.g. CVD
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
- H01L21/02065—Cleaning during device manufacture during, before or after processing of insulating layers the processing being a planarization of insulating layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02587—Structure
- H01L21/0259—Microstructure
- H01L21/02592—Microstructure amorphous
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/3003—Hydrogenation or deuterisation, e.g. using atomic hydrogen from a plasma
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
- H01L21/76254—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques with separation/delamination along an ion implanted layer, e.g. Smart-cut, Unibond
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Element Separation (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- High Energy & Nuclear Physics (AREA)
- Recrystallisation Techniques (AREA)
- Formation Of Insulating Films (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
Abstract
一種薄膜的製備方法,其係於矽覆絕緣片的薄膜製備技術,通過在提供的高阻矽晶片上形成一層電介質材料(氧化矽),再於電介質材料層上形成一層非晶矽,轉移一層氧化矽在非晶矽上,使氧化層上存在單晶矽,從而製備出具有非晶矽層的矽覆絕緣片,上述過程在特定工藝條件完成,所製備的薄膜(即帶有非晶矽層的矽覆絕緣片)主要用於射頻設備。
Description
本發明涉及 矽覆絕緣(silicon-on-insulator,SOI)片的製備技術領域,具體涉及一種於矽覆絕緣片上的薄膜製備方法,所製備的薄膜主要應用於射頻設備。
目前用於 RF 前端模組的材料如下:
1 、 SOQ ( silicon on quartz 石英上的矽)、 SOS ( silicon on sapphire 藍寶石上的矽): SOQ 和傳統的 SOI 相同,它產生較低的漏電流,由於其較低的寄生電容,高頻下電路性能得到了提高。 SOS的優勢在於其極好的電絕緣性,可有效防止雜散電流造成的輻射擴散到附近元件。 SOQ和SOS這類襯底可以獲得極好的射頻性能,但這種結構非常少,因此它們非常昂貴。
2 、高阻襯底矽:其電阻率在 500ohm.cm 以上,這種襯底比第一種差,這種襯底不受益于 SOI 類型結構優勢,但是他們成本較低。
3 、高阻 SOI 襯底:這類襯底具有結構優勢,但表現出來的性能比第一種差。
形成低電阻層的一個原因是:由於低電阻率層在鍵合前表面可能存在污染物,在鍵合過程中,這些污染物被封裝在粘結介面並能夠擴散到高電阻率襯底;形成低電阻層另一個原因是:襯底中氧原子含量較高,必須進行熱處理,使氧原子沉澱以獲得高電阻襯底。 然而,氧原子擴散、熱處理過程導致所形成襯底的表面電阻率低。 這兩個原因目前難以控制。
4 、在第三種的基礎上通過加入缺陷層改進了高阻 SOI 襯底型襯底:為達到該目的,嘗試了多技術,但都存在一些缺點:敏感于 SOI 製造及其後 IC 器件製造中過程發熱,不易制出熱穩定性好的材料。
本發明的目的是針對現有技術中的不足之處,提供一種薄膜的製備方法,該薄膜是指帶有非晶矽層的 SOI 片, SOI 片中引用非晶矽層,非晶矽與氧化矽的有效結合能夠 有效抑制矽襯底的表面寄生電導,限制電容變化和減少產生的諧波的功率,從而 使高阻 SOI 襯底電阻率的損失降至最低。
為實現上述目的,本發明所採用的技術方案如下:
一種薄膜的製備方法,其係為具有非晶矽層的矽覆絕緣片的製備方法,包括如下步驟:
( 1 )提供高阻矽晶片(矽晶片電阻率大於 1000ohm.cm ),清洗後在其表面依序製備氧化矽層和非晶矽層,氧化矽層厚度為 150-300A ,非晶矽層的厚度為 1-5μm ; 其中: 對高阻矽晶片依序採用 DHF 、 SC1 和 SC2 清洗,除去矽晶片表面自然氧化層及污染物,然後再在高阻矽晶片表面製備氧化矽層。
在高阻矽晶片表面製備氧化矽層的過程為:將高阻矽晶片置於氧化爐中,氧化溫度為 1060-1150℃,通過控制氧化時間製備所需厚度的氧化矽層,然後依序採用SC1 、 SC2 進行清洗,去除表面污染物。
在 高阻矽晶片表面製備氧化矽層後,再於氧化矽層表面製備非晶矽層,製備非晶矽層是通過LPCVD(低壓化學氣相沉積)的方式,製程壓力為0.1-5.0 torr,製程溫度在300- 900 ℃ ;製備非晶矽層後的高阻矽晶片依序採用 SC1 、 SC2 清洗,以去除表面雜質。
( 2 )提供低阻矽晶片(矽晶片電阻率小於 100ohm.cm ),清洗後在其表面製備氧化矽層,氧化矽層厚度為 2000-10000A ;其中:
對低阻矽晶片依序採用 DHF 、 SC1 和 SC2 清洗,除去矽晶片表面自然氧化層及污染物,然後再於低阻矽晶片表面製備氧化矽層。
在低阻矽晶片上製備氧化矽層的過程為:將低阻矽晶片置於氧化爐中,氧化溫度在 950-1020℃,根據氧化時間控制所得氧化矽層厚度;然後將製備有氧化矽層的低阻矽晶片依序採用SC1 、 SC2 清洗,以去除表面污染物。
( 3 )將步驟( 2 )製備有氧化矽層的低阻矽晶片進行氫離子注入,使氫離子穿透氧化矽層注入到矽晶片,並達到所需深度,然後依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗;
( 4 )將步驟( 1 )處理後的高阻矽晶片和步驟( 3 )處理後的低阻矽晶片通過鍵合方式成為一個整體,然後進行 200-450℃條件下的退火處理,退火後將鍵合後的整體依序採用SC1 、 SC2 清洗;
( 5 )將步驟( 4 )鍵合後的整體採用一微波裂片設備進行裂片,裂片溫度低於 400 ℃ ,以獲得帶有非晶層的矽覆絕緣片;
( 6 )將裂片後獲得的帶有非晶層的矽覆絕緣片進行清洗,清洗過程為:依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗,去除矽覆絕緣表面的矽渣及其他污染物;清洗後在 1000-1500℃條件下進行退火處理;
( 7 )將步驟( 6 )退火處理後的帶有非晶層的矽覆絕緣片先採用 DHF 清洗,以去除高溫退火帶來的氧化層,然後再依序採用 SC1 、 SC2 ,以去除化學液及表面污染物,最後進行 CMP 工藝,使其頂層矽達到所需求的厚度,從而獲得所需規格之具有非晶層的矽覆絕緣片成品。
本發明所製備的帶有非晶矽層的矽覆絕緣片具有以下優點:
1 、非晶矽與氧化矽結合的技術優勢是高缺陷密度,非晶矽與氧化矽結合層的應用,有效的抑制了矽襯底的表面寄生電導,限制電容變化和減少產生的諧波的功率。
2 、非晶層凍結載流子使矽材料成為真正的高阻抗。 減少高阻矽覆絕緣襯底的PSC(寄生表面電導)。
3 、本發明非晶矽技術的優勢是高缺陷密度,高熱穩定性的非晶矽層的應用與鍵合過程相容。 阻擋了氧化層下的電勢,限制電容變化和減少產生的諧波的功率。
4 、非晶層高阻矽覆絕緣底減少 RF 襯底損失,非晶層 結合高阻矽增加襯底線性特性,非晶層高阻矽覆絕緣襯底減少直流電壓偏置,且與 CMOS 相容,以降低了射頻的損耗。
5 、本發明可以製造高品質的IC元件,製造成本低。
以下結合附圖及實施例詳述本發明。
實施例 1 :
本實施例提供一種薄膜的製備方法,該薄膜是指帶有非晶矽層的矽覆絕緣片,其製備包括如下步驟:
1 、提供高阻矽晶片(矽片電阻率大於 1000ohm.cm ),並對其表面依序使用 DHF 、 SC1 和 SC2 清洗,以除去矽晶片表面自然氧化層及污染物; 使用測試設備測試矽晶片表面顆粒情況,符合要求的矽晶片,進行下一步(圖 1(a) )。
2 、參考圖 1(b) ,在高阻矽晶片的表面上製備氧化矽層,生長的氧化層厚度在 200 Å 左右;製備過程為:將高阻矽晶片置於氧化爐中,氧化溫度為 1100 ℃ 左右;然後依序採用 SC1 、 SC2 進行清洗,去除表面污染物。 使用測試設備測試矽晶片表面顆粒情況、使用測試設備測試氧化矽的厚度及其他各項參數(比如氧化矽層的顆粒,電學參數),選擇符合要求的矽片,進行下一步。
3 、在圖 1(b) 的基礎上,通過LPCVD(低壓化學氣相沉積)的方式,製程壓力為0.1-5.0 torr,製程溫度為300-900 ℃ ,在氧化矽層上製備非晶矽層(圖 1(c) ),非晶矽層的厚度為 1-5 μ m ;製備非晶矽層後的高阻矽晶片依序採用 SC1 、 SC2 清洗,以去除表面雜質。 使用測試設備測試長出的非晶矽的厚度,厚度在其範圍內的矽晶片,進行下一步。
4 、提供低阻矽晶片(電阻率小於 100ohm.cm ),依序採用 DHF 、 SC1 、 SC2 進行清洗,以除去矽晶片表面自然氧化層及污染物(圖 1(d) )。 使用測試設備測試表面顆粒是否合格及幾何參數情況,選擇合格的矽晶片進行下一步。
5 、在步驟( 4 )的低阻矽晶片上製備氧化矽層,厚度為 2000-10000 Å,製備過程為:將低阻矽晶片置於氧化爐中,氧化溫度在 1000 ℃ 左右;將製備有氧化矽層的低阻矽晶片依序採用 SC1 、 SC2 清洗,以去除表面污染物(圖 1(e) )。 使用測試設備測試得到矽晶片的氧化層厚度及表面狀態,選擇合適的氧化矽晶片進行下一步。
6 、將步驟( 5 )製備氧化矽層的低阻矽晶片進行氫離子注入,使氫離子穿透氧化矽層注入到矽晶片,並達到所需深度(圖 1(f) ),然後依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗。 對矽晶片進行測試,選擇合格的矽晶片進行下一步。
7 、將步驟( 3 )和步驟( 6 )處理後的高阻矽晶片和低阻矽晶片通過鍵合成為一個整體,然後進行低溫退火;退火溫度為 200-450℃,通過退火增加矽晶片之間鍵合力的強度(圖1(g) );然後進行 SONOSCAN D9600 ™ C-SAM 測試, SONOSCAN D9600 ™ C-SAM 測試,測試後依序採用 SC1 、 SC2 清洗。 選擇合格的矽晶片(鍵合後沒有空洞)進行下一步。
8 、將步驟( 7 )鍵合後的整體採用一微波裂片設備進行裂片,裂片溫度低於 400 ℃ ,以獲得帶有非晶層的矽覆絕緣片(圖 1(h) )。 裂片後的矽晶片可以重複利用(矽晶片厚度達不到要求時則報廢)。 所述微波裂片設備係可參閱大陸專利申請號201220360782.6的專利文獻中所揭示的微波裂片設備。
9 、將裂片後獲得的具有非晶層的矽覆絕緣片依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗,去除矽覆絕緣表面的矽渣及其他污染物。 爾後進行膜厚測試(測試頂層矽的厚度),選擇合格的矽覆絕緣片進行下一步。
10 、將清洗後的具有非晶層的矽覆絕緣片進行高溫退火,退火溫度為 1000-1500℃,以去除注入帶來的損傷,修復晶格。
11 、將經步驟( 10 )處理後的帶有非晶層的矽覆絕緣片先採用 DHF 清洗,以去除高溫退火帶來的氧化層,然後再依序採用 SC1 、 SC2 ,以去除化學液及表面污染物。
12 、經步驟( 11 )處理後的具有非晶層的矽覆絕緣片進行 CMP 工藝,使其頂層矽達到所需求的厚度,從而獲得所需規格之具有非晶層的矽覆絕緣片成品,爾後可對其進行各項測試(例如:表面金屬、顆粒、幾何參數、電阻率、膜厚、粗糙度等)。
( a )‧‧‧高阻矽晶片
( b )‧‧‧製備氧化矽層
( c )‧‧‧製備非晶矽層
( d )‧‧‧低阻矽晶片
( e )‧‧‧製備有氧化矽層的低阻矽晶片
( f )‧‧‧氫離子注入
( g )‧‧‧鍵合
( h )‧‧‧微波裂片
圖1為本發明的工藝流程圖。
Claims (9)
- 一種薄膜的製備方法,該薄膜係為具有非晶矽層的矽覆絕緣片,其製備方法包括如下步驟: ( 1 )提供高阻矽晶片,清洗後在其表面依序製備氧化矽層和非晶矽層,氧化矽層厚度為 150-300Å ,非晶矽層的厚度為 1-5μm ; ( 2 )提供低阻矽晶片,清洗後在其表面製備氧化矽層,氧化矽層厚度為 2000-10000 Å; ( 3 )將步驟( 2 )製備有該氧化矽層的該低阻矽晶片進行氫離子注入,使氫離子穿透該氧化矽層注入到矽晶片,並達到所需深度,然後依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗; ( 4 )將步驟( 1 )處理後的該高阻矽晶片和步驟( 3 )處理後的該低阻矽晶片通過鍵合方式成為一個整體,然後於 200-450℃條件下的進行退火處理,退火後將鍵合後的整體依序採用SC1 、 SC2 清洗; ( 5 )將步驟( 4 )鍵合後的整體採用一微波裂片設備進行裂片,裂片溫度低於 400 ℃ ,以獲得帶有非晶層的該矽覆絕緣 片; ( 6 )將裂片後獲得的帶有非晶層的該矽覆絕緣片進行清洗,然後在 1000-1500℃條件下進行退火處理; ( 7 )將步驟( 6 )退火處理後的帶有非晶層的該矽覆絕緣片先採用 DHF 清洗,以去除高溫退火所形成的氧化層,然後再依序採用 SC1 、 SC2 ,以去除化學液及表面污染物,最後進行 CMP 工藝,使其頂層矽達到所需求的厚度。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 1 )中,該高阻矽晶片是指電阻率大於 1000ohm.cm 的矽晶片。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 1 )中,對該高阻矽晶片依次採用 DHF 、 SC1 和 SC2 清洗,除去矽晶片表面自然氧化層及污染物,然後再在該高阻矽晶片表面製備氧化矽層。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 1 )中, 在該高阻矽晶片表面製備氧化矽層的過程為:將該高阻矽晶片置於氧化爐中,氧化溫度為 1060-1150℃ ,通過控制氧化時間製備所需厚度的氧化矽層,然後依序採用 SC1 、 SC2 進行清洗,以去除表面污染物。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 1 )中,在 該高阻矽晶片表面製備氧化矽層後,再於氧化矽層表面製備非晶矽層,製備非晶矽層是通過LPCVD的方式,製程壓力為0.1-5.0 torr,製程溫度在 900 ℃ 以下;製備非晶矽層後的該高阻矽晶片依序採用 SC1 、 SC2 清洗,以去除表面雜質。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 2 )中,該低阻矽晶片是指電阻率小於 100ohm.cm 的矽晶片。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 2 )中,對該低阻矽晶片依次採用 DHF 、 SC1 和 SC2 清洗,除去矽晶片表面自然氧化層及污染物,然後再在該低阻矽晶片表面製備氧化矽層。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 2 )中, 在該低阻矽晶片上製備氧化矽層的過程為:將該低阻矽晶片置於氧化爐中,氧化溫度在 950-1020℃ ,根據氧化時間控制所得氧化矽層厚度;然後將製備有氧化矽層的該低阻矽晶片依次採用 SC1 、 SC2 清洗,以去除表面污染物。
- 如請求項1所記載之薄膜的製備方法,其中步驟( 6 )中, 將裂片後獲得的帶有非晶層的矽覆絕緣片進行清洗的過程為:依序採用 SPM 、 DHF 、 SC1 、 SC2 進行清洗,以去除 SOI 表面的矽渣及其他污染物。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
??201610986988.2 | 2016-11-01 | ||
CN201610986988.2A CN108022934A (zh) | 2016-11-01 | 2016-11-01 | 一种薄膜的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI610336B TWI610336B (zh) | 2018-01-01 |
TW201818447A true TW201818447A (zh) | 2018-05-16 |
Family
ID=60303234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW105137971A TWI610336B (zh) | 2016-11-01 | 2016-11-18 | 一種薄膜的製備方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9824891B1 (zh) |
CN (1) | CN108022934A (zh) |
DE (1) | DE102017118860B4 (zh) |
FR (1) | FR3058257B1 (zh) |
TW (1) | TWI610336B (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3048306B1 (fr) * | 2016-02-26 | 2018-03-16 | Soitec | Support pour une structure semi-conductrice |
CN110078017B (zh) * | 2018-01-26 | 2021-11-05 | 沈阳硅基科技有限公司 | 一种贯穿空腔结构硅片的加工方法 |
CN110544668B (zh) | 2018-05-28 | 2022-03-25 | 沈阳硅基科技有限公司 | 一种通过贴膜改变soi边缘stir的方法 |
FR3091010B1 (fr) * | 2018-12-24 | 2020-12-04 | Soitec Silicon On Insulator | Structure de type semi-conducteur pour applications digitales et radiofréquences, et procédé de fabrication d’une telle structure |
FR3091004B1 (fr) * | 2018-12-24 | 2020-12-04 | Soitec Silicon On Insulator | Structure de type semi-conducteur pour applications digitales et radiofréquences |
CN110164756A (zh) * | 2019-05-30 | 2019-08-23 | 上海华虹宏力半导体制造有限公司 | 一种多晶硅薄膜的制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101142138B1 (ko) * | 2003-09-10 | 2012-05-10 | 신에쯔 한도타이 가부시키가이샤 | 적층기판의 세척방법, 기판의 접합방법 및 접합 웨이퍼의제조방법 |
JP2011029594A (ja) * | 2009-06-22 | 2011-02-10 | Shin Etsu Handotai Co Ltd | Soiウェーハの製造方法及びsoiウェーハ |
FR2973158B1 (fr) * | 2011-03-22 | 2014-02-28 | Soitec Silicon On Insulator | Procédé de fabrication d'un substrat de type semi-conducteur sur isolant pour applications radiofréquences |
CN102543828B (zh) * | 2011-11-02 | 2014-12-10 | 上海华力微电子有限公司 | 一种soi硅片的制备方法 |
CN102832160B (zh) * | 2012-07-24 | 2014-11-19 | 沈阳硅基科技有限公司 | 一种soi硅片的制备方法 |
CN202712135U (zh) * | 2012-07-24 | 2013-01-30 | 沈阳硅基科技有限公司 | 一种微波裂片设备 |
SG11201504015SA (en) * | 2012-11-22 | 2015-06-29 | Shinetsu Chemical Co | Composite substrate manufacturing method, and composite substrate |
CN104112694B (zh) * | 2013-04-22 | 2018-01-30 | 高地 | 用于薄膜转移的方法 |
US9768056B2 (en) * | 2013-10-31 | 2017-09-19 | Sunedison Semiconductor Limited (Uen201334164H) | Method of manufacturing high resistivity SOI wafers with charge trapping layers based on terminated Si deposition |
US10079170B2 (en) * | 2014-01-23 | 2018-09-18 | Globalwafers Co., Ltd. | High resistivity SOI wafers and a method of manufacturing thereof |
JP2015228432A (ja) * | 2014-06-02 | 2015-12-17 | 信越半導体株式会社 | Soiウェーハの製造方法及び貼り合わせsoiウェーハ |
US9853133B2 (en) * | 2014-09-04 | 2017-12-26 | Sunedison Semiconductor Limited (Uen201334164H) | Method of manufacturing high resistivity silicon-on-insulator substrate |
-
2016
- 2016-11-01 CN CN201610986988.2A patent/CN108022934A/zh active Pending
- 2016-11-18 TW TW105137971A patent/TWI610336B/zh active
- 2016-11-22 US US15/358,517 patent/US9824891B1/en active Active
-
2017
- 2017-08-18 DE DE102017118860.6A patent/DE102017118860B4/de active Active
- 2017-09-06 FR FR1758203A patent/FR3058257B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR3058257A1 (fr) | 2018-05-04 |
DE102017118860A1 (de) | 2018-05-03 |
TWI610336B (zh) | 2018-01-01 |
DE102017118860B4 (de) | 2020-10-08 |
US9824891B1 (en) | 2017-11-21 |
FR3058257B1 (fr) | 2019-11-22 |
CN108022934A (zh) | 2018-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI610336B (zh) | 一種薄膜的製備方法 | |
JP5726796B2 (ja) | 絶縁体上の半導体タイプの基板のためのベース基板を製造する方法 | |
JP3655497B2 (ja) | 回路デバイスとその製造方法 | |
TWI698907B (zh) | 貼合式soi晶圓的製造方法 | |
TW201543538A (zh) | 貼合式soi晶圓的製造方法及貼合式soi晶圓 | |
KR20120087188A (ko) | 전기 손실들이 감소된 반도체 온 절연체 타입 구조의 제조 공정 및 대응 구조 | |
WO2009116227A1 (ja) | Soiウェーハ及び半導体デバイスならびにsoiウェーハの製造方法 | |
KR20130029110A (ko) | 절연체 기판상의 실리콘 마감을 위한 방법 | |
US11764054B2 (en) | Methods of forming SOI substrates | |
TW201546875A (zh) | 貼合式晶圓的製造方法 | |
KR20180015634A (ko) | 접합 soi 웨이퍼의 제조방법 | |
JP2015228432A (ja) | Soiウェーハの製造方法及び貼り合わせsoiウェーハ | |
TW201711105A (zh) | 用於製造包含電荷捕捉層之半導體元件之製程 | |
JP2002184960A (ja) | Soiウェーハの製造方法及びsoiウェーハ | |
TWI716627B (zh) | 貼合式soi晶圓的製造方法 | |
CN116613058A (zh) | 一种复合基底、复合薄膜及其制备方法 | |
JP2008263025A (ja) | 半導体基板の製造方法 | |
CN114188362A (zh) | 一种特殊结构的soi及其制备方法 | |
TW201246370A (en) | Method for manufacturing soi wafer | |
JP2011029594A (ja) | Soiウェーハの製造方法及びsoiウェーハ | |
TWI804626B (zh) | 貼合式soi晶圓的製造方法及貼合式soi晶圓 | |
CN110085509B (zh) | 一种均匀性厚膜soi硅片的制备方法 | |
JP2015050429A (ja) | Soiウェーハの製造方法、soiウェーハ、及び半導体デバイス | |
CN110828473A (zh) | 一种硅覆绝缘片薄膜 | |
CN110739208A (zh) | 一种soi晶圆片的制备方法 |