DE258311T1 - METHOD FOR PRODUCING INSULATION TRENCHES IN A SEMICONDUCTOR. - Google Patents
METHOD FOR PRODUCING INSULATION TRENCHES IN A SEMICONDUCTOR.Info
- Publication number
- DE258311T1 DE258311T1 DE1987901216 DE87901216T DE258311T1 DE 258311 T1 DE258311 T1 DE 258311T1 DE 1987901216 DE1987901216 DE 1987901216 DE 87901216 T DE87901216 T DE 87901216T DE 258311 T1 DE258311 T1 DE 258311T1
- Authority
- DE
- Germany
- Prior art keywords
- dielectric material
- layer
- grooves
- active regions
- conformal layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims 2
- 238000009413 insulation Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000003989 dielectric material Substances 0.000 claims 15
- 238000000034 method Methods 0.000 claims 9
- 239000000463 material Substances 0.000 claims 7
- 230000003647 oxidation Effects 0.000 claims 5
- 238000007254 oxidation reaction Methods 0.000 claims 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 4
- 229910052710 silicon Inorganic materials 0.000 claims 4
- 239000010703 silicon Substances 0.000 claims 4
- 239000000758 substrate Substances 0.000 claims 4
- 230000004888 barrier function Effects 0.000 claims 3
- 238000005530 etching Methods 0.000 claims 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims 2
- 238000000151 deposition Methods 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 235000012239 silicon dioxide Nutrition 0.000 claims 2
- 239000000377 silicon dioxide Substances 0.000 claims 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 2
- 229910021417 amorphous silicon Inorganic materials 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims 1
Landscapes
- Element Separation (AREA)
Claims (9)
innerhalb der Innenecken der engen Rillen (2) und den
Randbereichen der weiten Rillen (3) liegen.3. A method according to claim 2, characterized in that the anisotropic etching of the dielectric material (16) is terminated after removing all of the vertically exposed dielectric material except for nominal residues which
within the inner corners of the narrow grooves (2) and the
edge areas of the wide grooves (3).
Schicht (14) in ein Dielektrikum durch thermische Oxidation bewirkt wird.5. A method according to claim 4, characterized in that the step of converting the material of the second conformal
Layer (14) into a dielectric by thermal oxidation.
dielektrischem Material mit weiterem dielektrischen Material den Schritt Bilden einer Siliziumschicht und thermisches
Oxidieren der Siliziumschicht aufweist.6. A method according to claim 5, characterized in that the step of filling the areas of selectively removed
dielectric material with further dielectric material, the step of forming a silicon layer and thermal
oxidation of the silicon layer.
dielektrischem Material mit weiterem dielektrischen Material Ablagern einer Schicht von CVD-Siliziumdioxid einschließt.7. A method according to claim 5, characterized in that the step of filling the areas of selectively removed
dielectric material with further dielectric material depositing a layer of CVD silicon dioxide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/826,402 US4671970A (en) | 1986-02-05 | 1986-02-05 | Trench filling and planarization process |
PCT/US1987/000150 WO1987004856A1 (en) | 1986-02-05 | 1987-01-27 | Process for forming isolation trenches in a semiconductor substrate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE258311T1 true DE258311T1 (en) | 1988-09-01 |
Family
ID=26775464
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1987901216 Pending DE258311T1 (en) | 1986-02-05 | 1987-01-27 | METHOD FOR PRODUCING INSULATION TRENCHES IN A SEMICONDUCTOR. |
DE8787901216T Expired - Lifetime DE3770727D1 (en) | 1986-02-05 | 1987-01-27 | METHOD FOR PRODUCING INSULATION TRENCHES IN A SEMICONDUCTOR. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787901216T Expired - Lifetime DE3770727D1 (en) | 1986-02-05 | 1987-01-27 | METHOD FOR PRODUCING INSULATION TRENCHES IN A SEMICONDUCTOR. |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE258311T1 (en) |
-
1987
- 1987-01-27 DE DE1987901216 patent/DE258311T1/en active Pending
- 1987-01-27 DE DE8787901216T patent/DE3770727D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3770727D1 (en) | 1991-07-18 |
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