JP4323392B2 - 半導体集積回路 - Google Patents
半導体集積回路 Download PDFInfo
- Publication number
- JP4323392B2 JP4323392B2 JP2004207138A JP2004207138A JP4323392B2 JP 4323392 B2 JP4323392 B2 JP 4323392B2 JP 2004207138 A JP2004207138 A JP 2004207138A JP 2004207138 A JP2004207138 A JP 2004207138A JP 4323392 B2 JP4323392 B2 JP 4323392B2
- Authority
- JP
- Japan
- Prior art keywords
- gate oxide
- oxide film
- region
- film
- circuit
- 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 20
- 238000009792 diffusion process Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000010408 film Substances 0.000 description 82
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/92—Capacitors having potential barriers
- H01L29/94—Metal-insulator-semiconductors, e.g. MOS
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/92—Capacitors having potential barriers
- H01L29/93—Variable capacitance diodes, e.g. varactors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
この半導体集積回路は、クロック信号CLK等を含む外部信号が与えられる複数の入力端子1を有し、この入力端子1が入力回路2を介して内部回路3に接続されている。内部回路3は、入力端子1に与えられる外部信号に従って所定の論理演算処理を行うもので、複数のMOSトランジスタによる論理ゲート等を組み合わせて構成されている。
更に、本発明の半導体集積回路は、前記半導体基板上に形成され、前記第1の膜厚の前記ゲート酸化膜を有する第1のMOSトランジスタと、前記半導体基板上に形成され、前記第2の膜厚の前記ゲート酸化膜を有する第2のMOSトランジスタとを備え、前記第1領域の前記ゲート酸化膜は前記第1のMOSトランジスタの前記ゲート酸化膜と同一の工程で形成され、前記第2領域の前記ゲート酸化膜は前記第2のMOSトランジスタの前記ゲート酸化膜と同一の工程で形成されている。
この可変容量ダイオードは、図2の半導体集積回路の製造工程で、入力回路2、内部回路3及び出力回路5中のMOSトランジスタと同時に形成される。
(1) 拡散領域12は、n型イオンではなくp型イオンを注入して形成するようにしても良い。この場合、制御電極に印加する電圧の変化方向と容量変化の方向は逆になる。
(2) シリコン基板10に代えて、SOI(シリコン・オン・インシュレータ)基板や、SOS(シリコン・オン・サファイア)基板を用いることができる。
(3) ゲート酸化膜13a〜13fの厚さは、例示したものに限定されない。また、2種類の膜厚の区分は、平行するゲート酸化膜毎に変えるのではなく、1本のゲート酸化膜毎に厚い部分と薄い部分を設けるようにしても良い。
(4) ゲート酸化膜13及び制御電極14の形状は、短冊型を並行に配置したものである必要はなく、例えば、1つの正方形のものでも良い。
(5) ゲート酸化膜13a〜13fの内で、厚い膜厚を入出力回路のトランジスタの膜厚に合わせ、薄い膜厚を内部回路のトランジスタの膜厚に合わせているが、これに限定されない。例えば、内部回路が膜厚の異なる複数のトランジスタで構成されている場合、その内部回路のトランジスタの2種類の膜厚に合わせることができる。
3 内部回路
4 可変容量ダイオード
5 出力回路
10 シリコン基板
11 n型ウエル
12 拡散領域
13a〜13f ゲート酸化膜
14 制御電極
15 層間絶縁膜
16a,16b 第1メタル
17a,17b コンタクト
Claims (1)
- 半導体基板の回路形成面に形成された複数の拡散領域と、前記回路形成面上で前記拡散領域によって挟まれるゲート領域に形成されたゲート酸化膜と、前記ゲート酸化膜上に形成された制御電極と、前記拡散領域及び前記制御電極の上に形成された絶縁膜と、前記絶縁膜上に形成され該絶縁膜を貫通して設けられたコンタクトによって前記複数の拡散領域を電気的に接続する第1の配線パターンと、前記絶縁膜上に形成され該絶縁膜を貫通して設けられたコンタクトによって複数の前記制御電極と電気的に接続される第2の配線パターンとを有する可変容量ダイオードを備え、
前記ゲート酸化膜は、第1の膜厚で形成された第1領域と、該第1の膜厚とは異なる第2の膜厚で形成された第2領域とを有する半導体集積回路であって、
前記半導体基板上に形成され、前記第1の膜厚の前記ゲート酸化膜を有する第1のMOSトランジスタと、前記半導体基板上に形成され、前記第2の膜厚の前記ゲート酸化膜を有する第2のMOSトランジスタとを備え、
前記第1領域の前記ゲート酸化膜は前記第1のMOSトランジスタの前記ゲート酸化膜と同一の工程で形成され、前記第2領域の前記ゲート酸化膜は前記第2のMOSトランジスタの前記ゲート酸化膜と同一の工程で形成されたことを特徴とする半導体集積回路。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004207138A JP4323392B2 (ja) | 2004-07-14 | 2004-07-14 | 半導体集積回路 |
US11/070,248 US20060012009A1 (en) | 2004-07-14 | 2005-03-03 | Semiconductor device |
KR1020050024005A KR20060044617A (ko) | 2004-07-14 | 2005-03-23 | 반도체 집적회로 |
CNB2005100637468A CN100481519C (zh) | 2004-07-14 | 2005-03-24 | 半导体集成电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004207138A JP4323392B2 (ja) | 2004-07-14 | 2004-07-14 | 半導体集積回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006032533A JP2006032533A (ja) | 2006-02-02 |
JP4323392B2 true JP4323392B2 (ja) | 2009-09-02 |
Family
ID=35598588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004207138A Expired - Fee Related JP4323392B2 (ja) | 2004-07-14 | 2004-07-14 | 半導体集積回路 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060012009A1 (ja) |
JP (1) | JP4323392B2 (ja) |
KR (1) | KR20060044617A (ja) |
CN (1) | CN100481519C (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4993941B2 (ja) * | 2006-04-27 | 2012-08-08 | パナソニック株式会社 | 半導体集積回路及びこれを備えたシステムlsi |
US20110098694A1 (en) * | 2009-10-28 | 2011-04-28 | Ethicon Endo-Surgery, Inc. | Methods and instruments for treating cardiac tissue through a natural orifice |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6239662B1 (en) * | 1998-02-25 | 2001-05-29 | Citizen Watch Co., Ltd. | Mis variable capacitor and temperature-compensated oscillator using the same |
US6320474B1 (en) * | 1998-12-28 | 2001-11-20 | Interchip Corporation | MOS-type capacitor and integrated circuit VCO using same |
DE10116557A1 (de) * | 2001-04-03 | 2002-10-17 | Infineon Technologies Ag | Integrierte, abstimmbare Kapazität |
US6608747B1 (en) * | 2002-09-26 | 2003-08-19 | Oki Electric Industry Co., Ltd. | Variable-capacitance device and voltage-controlled oscillator |
JP2004235577A (ja) * | 2003-01-31 | 2004-08-19 | Nec Electronics Corp | 電圧制御可変容量素子 |
-
2004
- 2004-07-14 JP JP2004207138A patent/JP4323392B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-03 US US11/070,248 patent/US20060012009A1/en not_active Abandoned
- 2005-03-23 KR KR1020050024005A patent/KR20060044617A/ko not_active Application Discontinuation
- 2005-03-24 CN CNB2005100637468A patent/CN100481519C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1722471A (zh) | 2006-01-18 |
JP2006032533A (ja) | 2006-02-02 |
US20060012009A1 (en) | 2006-01-19 |
KR20060044617A (ko) | 2006-05-16 |
CN100481519C (zh) | 2009-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6995412B2 (en) | Integrated circuit with capacitors having a fin structure | |
TWI515904B (zh) | 半導體裝置、鰭式場效電晶體裝置及其製造方法 | |
US10187011B2 (en) | Circuits and methods including dual gate field effect transistors | |
US8013379B2 (en) | Semiconductor variable capacitor and method of manufacturing the same | |
US8148219B2 (en) | Thick oxide P-gate NMOS capacitor for use in a low-pass filter of a circuit and method of making same | |
JP2004235577A (ja) | 電圧制御可変容量素子 | |
JP2832279B2 (ja) | 高周波集積回路チヤンネル・キヤパシタ | |
US7211876B2 (en) | Semiconductor device utilizing multiple capacitors each having an insulating layer having a different thickness | |
JP4323392B2 (ja) | 半導体集積回路 | |
US7321158B2 (en) | Method of manufacturing variable capacitance diode and variable capacitance diode | |
US20050224884A1 (en) | Double-gate MOS transistor, double-gate CMOS transistor, and method for manufacturing the same | |
KR102393667B1 (ko) | 커패시터 구조체를 포함하는 반도체 디바이스 및 반도체 디바이스의 형성 방법 | |
JP4224149B2 (ja) | 非揮発性半導体素子の製造方法 | |
US6645817B2 (en) | Method of manufacturing a semiconductor device comprising MOS-transistors having gate oxides of different thicknesses | |
JPH1168091A (ja) | クローズド・トランジスタ | |
KR100517152B1 (ko) | Pip 커패시터 및 로직 트랜지스터를 갖는 엠베디드 반도체 소자의 제조 방법 | |
US20220189829A1 (en) | Compact and efficient cmos inverter | |
TW587302B (en) | Manufacturing method for MOS capacitor | |
JP2003282724A (ja) | 半導体装置 | |
JP2004200426A (ja) | 半導体集積回路装置 | |
JP4565825B2 (ja) | 半導体集積回路装置の製造方法 | |
JPH0575123A (ja) | 半導体装置 | |
JP2005175351A (ja) | 半導体装置の製造方法 | |
JP2004281567A (ja) | 半導体装置およびその製造方法 | |
JP2001094049A (ja) | 半導体装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061027 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080502 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081028 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090105 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20090114 |
|
TRDD | Decision of grant or rejection written | ||
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20090428 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090507 |
|
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: 20090604 |
|
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: 20120612 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130612 Year of fee payment: 4 |
|
LAPS | Cancellation because of no payment of annual fees |