Chemical Vapor Deposition- CVD - PowerPoint PPT Presentation

1 / 31
About This Presentation
Title:

Chemical Vapor Deposition- CVD

Description:

3 – PowerPoint PPT presentation

Number of Views:185
Avg rating:3.0/5.0
Slides: 32
Provided by: 49882
Category:

less

Transcript and Presenter's Notes

Title: Chemical Vapor Deposition- CVD


1
??3
  1. ?????????????,????????????????????,???????????????
  2. ???????????????????,?????????????
  3. ????????????????????
  4. ??????????
  5. ????????????????????

2
??? ?????? Chemical Vapor Deposition-
CVD
???????????????????????????,???????????????????,??
?????????????????????(?????)??????
??
3
CVD???? (1) ?????,?????(200500C)???(
5001000C) ???(10001300C)CVD
(2) ????????,?????CVD???CVD
(3) ????????,????????????CVD (4)
???????,?????????????CVD??
4
5-1 ???????????
  • ???????????????????????,???????????????
    ?????????CVD?????????
  • ????? AB(g)?A(s)B(g)
  • ? SiH4 ?Si2H2
  • ???????AB(g)C(g) ?A(s)BC(g)
  • (C?H2???)
  • ? SiCl42H2 ?Si4HCl

5
  • ??????? AB(g)2D(g) ?AD(s)BD(g)
  • (D?O2?N2)
  • ? SiH4O2
    ?SiO22H2
  • ???? AB2(g)2HOH(g) ?AO(s)2BH(g)HOH(g)
  • ?Al2Cl63CO2H2 ?Al2O33HCl3CO
  • ???? AB2(g) ? A(s)AB(g)
  • ? 2GeI2 ?
    GeGeI4
  • Al, B, Ga, In, Si, Ti, Zr, Be, Cr can be
    deposited this way
  • ???? XA(g) ?Ax(s)

6
CVD???????????????????
?????
?????
????????????????????????????????? ???????
?Grlt0,?????? ??T , ?Gr??,???????????
A????????? ?E??? ?????????T1.5-T2.0 ??T,??????
??
7
  • CVD?????????4???(??)
  • (1)???????????
  • (2)???????????
  • (3)????????????
  • (4)?????????????????????????????,?????????????????
    ???

8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
??????????????
  • ?????
  • ???
  • ?SiH4 700-1100C?Si2H2?
  • ??????? ?
  • 2Al(OC3H7)3 420C?Al2O36C3H6 ?3H2O ?
  • ?????????????
  • ?Ga(CH3)3AsH3 630675C?GaAs3CH4 ?
  • ???????????
  • ?Pt(CO)2Cl2 600C?Pt2CO ?Cl2?

12
  • ??????
  • ????????????????????????????????????
    ,????????????
  • ????????????????????,???????????????
    ??????????????
  • ? SiCl42H2 11501200C?Si4HCl
  • ???????,?????????????????????????????
    ??????,???????????????????????????????????????????
    ?
  • ? SiH42O2 325475C?SiO22H2O?
  • Al2(CH3)612O2 450C?Al2O39H2O?6
    CO2?

13
  • ??????
  • ?????????????(?????),???????????????
    ?????????,?????????????????(????)??????????????,??
    ???????????,??????????????,???????????????????????
    ????????????????????
  • ? Ge(s)I2(g)?T?GeI2

14
5-2?????????
  • ??????(CVD)???
  • ???????????????,????????????????
  • ????????,???????µm?????µm?
  • CVD???????????,????????
  • ????????????????????????????
  • ???????????????????,?????????????????,????????????
    ??
  • CVD????????????
  • ??????

15
5-3 CVD????
  • ??CVD?????????????????
  • ??????,???????????????,?????????????????
  • ????????????????????,??????????????
  • ?????????????????,???????????????????????????????
    ??????????????
  • ??,CVD????????????,????????????

16
(No Transcript)
17
(No Transcript)
18
?.????






?? ?????
?5-3 ????CVD??
????
????
?????
?????
19
(No Transcript)
20
????????
???
???
ZnSe?
???
?
??
?????????ZnSe????
21
5-4 ????????
  • ??CVD??(LPCVD)??????CVD????,????????
    ????????????,???????????????????,????????????

22
5-5 ??????????
  • ??????????????(PECVD)????????????????
  • ??CVD???????,?????600C???,???900100
    0C????,?????????????????????????,??
  • ????????????????,?????????????
  • ????????????????????,???????????,????????????
  • ??,??CVD????????????
  • ??????????????????????????????????????

23
(No Transcript)
24
???????????????
  • ?????????????????,??????????
  • ?????????????(?????),???????
  • ?????????????????,????????????,??????????????????
  • ????????????????????????????,???????????

25
PECVD???(???CVD??)
  • ???????(???????300350C),??????,?????????????????
    ??????????????????
  • PECVD?????????,???????????????????????????????????
    ,???????????,??????????????????????????
  • ??????????????,???????????????????????????????????
    ???????
  • ?????????????CVD.

26
(No Transcript)
27
5-6 ?????????
  • ???????????????(Metal Organic Chemical Vapor
    Deposition, MOCVD)
  • ??????????????????????????CVD???
  • MOCVD???
  • MOCVD????????????????,????????????????
    ????????
  • ??????????????????????????
  • ????????????
  • ??????????????,???????
  • ???????,?????????????

28
MOCVD?????????? ?????????????,??????????????
???32 ??/? ???????1200?????0800Torr????????
???? ??????,??(??6N) ????,??(??6N)
MO?????(TMGa),????(TMIn), ????(TMAl),????(Cp2Mg)
(?????)
29
(No Transcript)
30
2. MOCVD???? MOCVD
?????????????????,???????????????????????????
  • ??
  • MOCVD?????????????
  • MOCVD???????????????,???????????????????????
  • MOCVD?????
  • ??????????????????,????????,????????????????,?????
    ?,?????????
  • ???????????????????
  • ??
  • ????????????????,?????????????????????????,???????
    ?????
  • ???????,??????????????????,???????,????????

31
(No Transcript)
32
(No Transcript)
33
?????(Molecular Beam Epitaxy,MBE)
34
(No Transcript)
35
MBE??????
36
???????????
????????
37
(No Transcript)
38
(No Transcript)
39
Chemical beam epitaxy, CBE
40
(No Transcript)
41
GAME OVER
42
??
Write a Comment
User Comments (0)
About PowerShow.com