JP4247674B2 - 半導体素子 - Google Patents
半導体素子 Download PDFInfo
- Publication number
- JP4247674B2 JP4247674B2 JP2003579289A JP2003579289A JP4247674B2 JP 4247674 B2 JP4247674 B2 JP 4247674B2 JP 2003579289 A JP2003579289 A JP 2003579289A JP 2003579289 A JP2003579289 A JP 2003579289A JP 4247674 B2 JP4247674 B2 JP 4247674B2
- Authority
- JP
- Japan
- Prior art keywords
- region
- semiconductor region
- junction
- semiconductor
- type region
- 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.)
- Expired - Fee Related
Links
- 239000004065 semiconductor Substances 0.000 title claims description 118
- 239000012535 impurity Substances 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 description 33
- 239000000758 substrate Substances 0.000 description 19
- 230000005684 electric field Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D8/00—Diodes
- H10D8/01—Manufacture or treatment
- H10D8/045—Manufacture or treatment of PN junction diodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/23—Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D8/00—Diodes
Landscapes
- Electrodes Of Semiconductors (AREA)
- Bipolar Transistors (AREA)
Description
図1は、本発明による第1の実施の形態のダイオードを示す断面図
図2は、図1に示すダイオードの平面図
図3は、図1に示すダイオードの製法を示す工程断面図
図4は、本発明による第2の実施の形態のダイオードを示す断面図
図5は、図4に示すダイオードの製法を示す工程断面図
図6は、本発明による第3、第4及び第5の実施の形態のダイオードを示す断面図
図7は、本発明による第6及び第7の実施の形態を示すダイオードの断面図
図8は、従来のメサ構造のダイオードを示す断面図
図9は、従来のプレーナ構造のダイオードを示す断面図
Claims (1)
- 第1の半導体領域と、該第1の半導体領域とは異なる導電型を有し且つ前記第1の半導体領域の一方の主面上に形成された第2の半導体領域と、前記第1の半導体領域と第2の半導体領域との間に配置され且つ前記第1の半導体領域及び第2の半導体領域よりも不純物濃度の低い第3の半導体領域と、前記第2の半導体領域の一方の主面全体に形成される第1の電極と、前記第1の半導体領域の他方の主面に形成される第2の電極とを備え、前記第1の電極の主面に窪みを有する半導体素子において、
前記第2の半導体領域は、前記第1の半導体領域の内側に形成された皿状凹部に直接接合されて第1のPN接合を形成する円形の平坦な底面と、該底面よりも外側を包囲し且つ前記第3の半導体領域の平坦面に沿って外端部まで形成されて前記第3の半導体領域と直接接合される外周底面とを有し、
環状の前記第3の半導体領域は、前記第2の半導体領域の底面を外側で包囲して且つ前記第2の半導体領域の外周底面に対して接合される第2のPN接合を形成し、
前記第1のPN接合は、前記第2のPN接合の内側に形成され且つ前記第2のPN接合よりも前記第1の半導体領域の他方の主面側に配置され、
前記第3の半導体領域の上面に形成される前記第2の半導体領域の厚さは、前記第1の半導体領域の皿状凹部の上面に形成される前記第2の半導体領域の厚さよりも相対的に厚く形成され、
前記第2のPN接合から広がる空乏層は、前記第1のPN接合から広がる空乏層よりも幅広に且つ第3の半導体領域側に広く形成されることを特徴とする半導体素子。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002085979 | 2002-03-26 | ||
JP2002085979 | 2002-03-26 | ||
PCT/JP2003/003181 WO2003081681A1 (en) | 2002-03-26 | 2003-03-17 | Semiconductor element and method for fabricating the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2003081681A1 JPWO2003081681A1 (ja) | 2005-07-28 |
JP4247674B2 true JP4247674B2 (ja) | 2009-04-02 |
Family
ID=28449283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003579289A Expired - Fee Related JP4247674B2 (ja) | 2002-03-26 | 2003-03-17 | 半導体素子 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4247674B2 (ja) |
TW (1) | TWI221342B (ja) |
WO (1) | WO2003081681A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110085663A (zh) * | 2019-05-07 | 2019-08-02 | 无锡鸣沙科技有限公司 | 一种半导体pn结及制作方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS433573B1 (ja) * | 1964-12-22 | 1968-02-09 | ||
DE1589693C3 (de) * | 1967-08-03 | 1980-04-03 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Halbleiterbauelement mit flächenhaftem PN-Übergang |
JPS4624621B1 (ja) * | 1967-08-25 | 1971-07-15 | ||
JPS5742978B2 (ja) * | 1973-05-28 | 1982-09-11 | ||
JPS548982A (en) * | 1977-06-23 | 1979-01-23 | Mitsubishi Electric Corp | Semiconductor device |
KR900001030A (ko) * | 1988-06-16 | 1990-01-31 | 정몽헌 | 고전압용 반도체 소자 및 그 제조방법 |
-
2003
- 2003-03-17 WO PCT/JP2003/003181 patent/WO2003081681A1/ja active Application Filing
- 2003-03-17 JP JP2003579289A patent/JP4247674B2/ja not_active Expired - Fee Related
- 2003-03-20 TW TW092106225A patent/TWI221342B/zh active
Also Published As
Publication number | Publication date |
---|---|
TWI221342B (en) | 2004-09-21 |
TW200305297A (en) | 2003-10-16 |
WO2003081681A1 (en) | 2003-10-02 |
JPWO2003081681A1 (ja) | 2005-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6770548B2 (en) | Trench schottky rectifier | |
US20080083966A1 (en) | Schottky barrier semiconductor device | |
JP2002185019A (ja) | 半導体装置及びその製造方法 | |
JP2004529506A5 (ja) | ||
JP2004127968A (ja) | 半導体装置およびその製造方法 | |
JP2013201413A (ja) | 半導体装置および半導体装置の製造方法 | |
US10615293B2 (en) | Diode and method of manufacturing diode | |
JP4631268B2 (ja) | 半導体装置 | |
US4524376A (en) | Corrugated semiconductor device | |
KR100503936B1 (ko) | 반도체장치 | |
JP4247674B2 (ja) | 半導体素子 | |
JP4251326B2 (ja) | 半導体装置 | |
JP3144527B2 (ja) | 高濃度pn接合面を有する半導体装置の製造方法 | |
KR19990024988A (ko) | 반절연 폴리실리콘막을 이용한 전력 반도체장치의 제조방법 | |
JP7034214B2 (ja) | 半導体装置 | |
JP2005294772A (ja) | 半導体装置 | |
JP3951657B2 (ja) | 半導体素子 | |
JP2008210899A (ja) | 半導体装置及びその製造方法 | |
JPH11251604A (ja) | 半導体装置 | |
JP2022130747A (ja) | 半導体装置 | |
JP2005019612A (ja) | 半導体素子及びその製法 | |
JP2007134384A (ja) | 定電圧ダイオード | |
JP2001148484A (ja) | アノードコモンツェナーダイオード | |
JP2006156936A (ja) | 定電圧ダイオードおよびその製造方法 | |
JP2007103788A (ja) | 半導体素子 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080710 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080908 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20081218 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20081231 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120123 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120123 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130123 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140123 Year of fee payment: 5 |
|
LAPS | Cancellation because of no payment of annual fees |