JPS60115252A - Semiconductor device - Google Patents

Semiconductor device

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Publication number
JPS60115252A
JPS60115252A JP22371083A JP22371083A JPS60115252A JP S60115252 A JPS60115252 A JP S60115252A JP 22371083 A JP22371083 A JP 22371083A JP 22371083 A JP22371083 A JP 22371083A JP S60115252 A JPS60115252 A JP S60115252A
Authority
JP
Japan
Prior art keywords
internal circuit
diode
diodes
input
terminal
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.)
Granted
Application number
JP22371083A
Other languages
Japanese (ja)
Other versions
JPH0362022B2 (en
Inventor
Masao Suzuki
正雄 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP22371083A priority Critical patent/JPS60115252A/en
Publication of JPS60115252A publication Critical patent/JPS60115252A/en
Publication of JPH0362022B2 publication Critical patent/JPH0362022B2/ja
Granted legal-status Critical Current

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  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To prevent mulfunction with series resonance due to rapid variations of input by adding a special mulfunction preventive means using two diodes. CONSTITUTION:A clamp circuit comprises an internal circuit 2, a first diode D1 of which anode and cathode are connected with an input terminal TIN of the internal circuit 2 and an voltage reference terminal Tvref of the internal circuit 2 respectively, and a second diode D2 of which cathode and anode are connected with the terminal TIN and the Tvref respectively, both the diodes being included on a substrate 1. As the diodes D1 and D2, Shottky barrier diodes are employed. When rapid variations generate in a semiconductor device and series resonance starts, the device is clamped and energy stored in a resonant circuit is consumed in the diodes to considerably reduce a resonant level and allow a large operating margin to be obtained.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 本発明は半導体装置に関し、特に急峻な動きの入力があ
っても誤動作しないように誤動作防止手段上付加した半
導体装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a semiconductor device, and more particularly to a semiconductor device having a malfunction prevention means added thereto to prevent malfunction even if there is a steep motion input.

〔従来技術〕[Prior art]

従来、半導体装置(半導体集積回路)に於いては、入力
端子のインダクタンス、電源端子のインダクタンス及び
入力配線容量が入力信号の動きで共振を開始し半導体装
置の誤動作上越す場合がある。これ全図面を用いて説明
する。
Conventionally, in a semiconductor device (semiconductor integrated circuit), the inductance of an input terminal, the inductance of a power supply terminal, and the input wiring capacitance may start to resonate due to the movement of an input signal, which may cause malfunction of the semiconductor device. This will be explained using all the drawings.

第1図は従来の半導体装置の一例のイ/ビーダ ・ンス
を説明するための図である。
FIG. 1 is a diagram for explaining the I/V conductance of an example of a conventional semiconductor device.

第1図において% 1は半導体装置基板、2は入力配線
容量以外の内部回路、 Lvcc及びLVEEは電源端
子のインダクタンス(ケース及びボンティング線)、C
1〜C1〜Cm及びC1′〜C1′〜cm′は入力配線
容量、 Lrx〜Lxi−Lxm は入力端子のインダ
クタンスである。
In Figure 1, %1 is the semiconductor device board, 2 is the internal circuit other than the input wiring capacitance, Lvcc and LVEE are the inductance of the power supply terminal (case and bonding wire), and C
1 to C1 to Cm and C1' to C1' to cm' are input wiring capacitances, and Lrx to Lxi-Lxm are input terminal inductances.

第2図は第1図の交流等価回路図である。FIG. 2 is an AC equivalent circuit diagram of FIG. 1.

第2図において、インダクタンスLpは第1図〜Cn’
−1べての並列容量、インダクタンスL!はL1t〜L
t i −Lwn の並列インダクタンスである。
In Fig. 2, the inductance Lp is from Fig. 1 to Cn'
-1 All parallel capacitances, inductances L! is L1t~L
t i -Lwn is the parallel inductance.

ここで、 Lvcc= LvEg LX1= ・・−−−−= Lr i = ・−・−・
LxmC1=・−−−=Ci =−旧−・CnC!′=
・・・・・・=Ci’=・・・・・・=Cn’とする。
Here, Lvcc= LvEg LX1= ・・・−−−= Lr i = ・−・−・
LxmC1=・---=Ci=-old-・CnC! ′=
...=Ci'=...=Cn'.

また、内部回路2の高電位側電源端子Vcと低電位側電
源端子Vwとの間は内部回路で決せられる非常に低いイ
ンピーダンスを持っているので交流的にはシ冒−ト状態
と仮定する。
Also, since there is a very low impedance determined by the internal circuit between the high potential side power supply terminal Vc and the low potential side power supply terminal Vw of the internal circuit 2, it is assumed that the AC is in a blank state. .

半導体装置の入力端子TINの電圧レベルは入力が遷移
した後は固定レベルとなる。入力端子の電圧レベルが急
峻に遷移した時を考えると、蓄えられる電磁エネルギー
と静電エネルギーとでこの等何回路が直列共振全開始し
、入力端子側のa点と電源端子側のb点は、インダクタ
ンスに誘起される電圧と容量に誘起される電圧とが逆位
相で動く。
The voltage level of the input terminal TIN of the semiconductor device becomes a fixed level after the input changes. Considering when the voltage level of the input terminal suddenly changes, how many of these circuits will start to fully resonate in series due to the stored electromagnetic energy and electrostatic energy, and point a on the input terminal side and point b on the power supply terminal side will be , the voltage induced in the inductance and the voltage induced in the capacitance move in opposite phases.

即ち、入力端子の電圧レベルが固定レベルに達した後、
この等何回路に流れる交流電流y(Imsinωtとす
ると、容量に誘起される電圧n直Im 5ia(ωt−
7)、インダクタンスに誘起される電圧はωLpIma
*(ωt+−H)及びωLt lm5in(ωt+T)
となハ容量に誘起される電圧とは位相がπのずれを生ず
る。
That is, after the voltage level of the input terminal reaches a fixed level,
If the alternating current y (Im sin ωt) flowing through any of these circuits, then the voltage induced in the capacitance n direct Im 5ia (ωt-
7), the voltage induced in the inductance is ωLpIma
*(ωt+-H) and ωLt lm5in(ωt+T)
A phase shift of π occurs between the voltage induced in the capacitance and the voltage induced in the capacitance.

この結果、第2図で示される交流等価回路のa点とb点
とは位相がπだけずれた共振波形が直流電圧に重畳され
る。ここで%電源端子は高電位側電源端子Vcも低電位
側電源端子VEも同相で動くため半導体装置の内部回路
2の内部レベルはすべてVC,VBと同相で動く。この
結果、第1図に示す入力端子の基板側(ata2・・・
an)は電源端子の基盤側Vc、Vzと逆相で動くため
、内部回路2で発生されるリファレンス電圧と入力信号
の基盤側(am・・・aa)の電圧とは逆相で動く。
As a result, a resonant waveform whose phase is shifted by π between points a and b of the AC equivalent circuit shown in FIG. 2 is superimposed on the DC voltage. Here, since the % power supply terminal operates in the same phase as both the high potential side power supply terminal Vc and the low potential side power supply terminal VE, the internal levels of the internal circuit 2 of the semiconductor device all operate in the same phase as VC and VB. As a result, the board side of the input terminal (ata2...
an) moves in opposite phase to the base side Vc and Vz of the power supply terminal, so the reference voltage generated in the internal circuit 2 and the voltage on the base side (am...aa) of the input signal move in opposite phase.

第3図は従来品及び本発明における入力端子側及び電源
端子側の各点に現われる電圧の波形図である。
FIG. 3 is a waveform diagram of voltages appearing at each point on the input terminal side and power supply terminal side in the conventional product and the present invention.

第3図で曲線a、bは第2図のa点及びb点での電圧波
形上水し、 VINは久方電圧レベル、Vrefはリフ
ァレンス電圧を示す。第3図に示すように、入力電圧レ
ベルVINがリファレンス[圧Vref ト交差してh
る。この交差があるため、半導体装置は、入力に急峻な
動きがあるときは誤動作を起すという欠点があった。
In FIG. 3, curves a and b represent the voltage waveforms at points a and b in FIG. 2, VIN represents the voltage level, and Vref represents the reference voltage. As shown in FIG. 3, when the input voltage level VIN crosses the reference voltage Vref
Ru. Because of this intersection, the semiconductor device has the disadvantage of causing malfunctions when there is a sudden movement in the input.

・ 〔発明の目的〕 本発明の目的は、上記欠点を除去し、入力の急峻な動き
があったとき直列共振によって誤動作することを防いだ
半導体装置を提供することにある。
- [Object of the Invention] An object of the present invention is to provide a semiconductor device which eliminates the above drawbacks and prevents malfunction due to series resonance when there is a steep movement of the input.

〔発明の構成〕[Structure of the invention]

本発明の第1の発明の半導体装置は、内部回路と、該内
部回路の入力端子にアノードが接続され該内部回路のレ
ファレンス電圧端子にカソードが接続される第1のダイ
オードと、前記入力端子にカソードが接続され前記レフ
ァレンス電圧m子に7ノードが接続される第2のダイオ
ードとを半導体基板に含んで構成される。
A semiconductor device according to a first aspect of the present invention includes an internal circuit, a first diode having an anode connected to an input terminal of the internal circuit and a cathode connected to a reference voltage terminal of the internal circuit, and a first diode connected to the input terminal. A semiconductor substrate includes a second diode having a cathode connected thereto and a second diode having seven nodes connected to the reference voltage m.

本発明の第2の発明の半導体装置祉、内部回路と、該内
部回路の入力端子に一方の電極が接続する容量素子と、
該容量素子の他方の電極に7ノードが接続し前記内部回
路のリファレンス電圧端子にカソードが接続する第1の
ダイオードと、前記容量素子の他方の電極にカソードが
接続し前記リファレンス電圧端子にアノードが接続する
第2のダイオードと上手導体基板に含んで構成される。
A semiconductor device according to a second aspect of the present invention, an internal circuit, a capacitive element whose one electrode is connected to an input terminal of the internal circuit,
a first diode having seven nodes connected to the other electrode of the capacitive element and a cathode connected to the reference voltage terminal of the internal circuit; a first diode having a cathode connected to the other electrode of the capacitive element and an anode connected to the reference voltage terminal; The second diode to be connected is included in the upper conductor substrate.

〔実施例の説明〕[Explanation of Examples]

次に本発明の実施例について図面音用いて説明する。 Next, embodiments of the present invention will be described with reference to the drawings.

第4図鉱本第1の発明の一実施例の等価回路図である。FIG. 4 is an equivalent circuit diagram of an embodiment of the first invention of Minemoto.

この実施例は、内部回路2と、この内部回路2の入力端
子Txwにアノードが接続され内部回路のレファレンス
電圧端子Tvrefにカソードが接続される第1のダイ
オードDIと、入力端子TrNycカソードが接続され
レファレンス電圧端子Tvrefニアノードが接続され
る第2のダイオードD2とを半導体基板lに含んで構成
される。
In this embodiment, an internal circuit 2, a first diode DI whose anode is connected to the input terminal Txw of the internal circuit 2 and a cathode connected to the reference voltage terminal Tvref of the internal circuit, and a cathode of the input terminal TrNyc are connected. The semiconductor substrate 1 includes a second diode D2 to which the near node of the reference voltage terminal Tvref is connected.

この実施例においては、第1及び第2のダイオードDI
、D2としてショットキ障壁ダイオードを用いている。
In this embodiment, the first and second diodes DI
, D2 are Schottky barrier diodes.

第1及び第2のダイオードDI。first and second diodes DI;

Dzはクランプ回路全構成している。また、第4図にお
いては入力端子としてl端子のみ記入しているが、全入
力端とも共通である。
Dz constitutes the entire clamp circuit. Further, although only the l terminal is shown as an input terminal in FIG. 4, it is common to all input terminals.

半導体装置の入力に急峻な動きがあって直列共振を開始
したとき、入力端子TxNとリファレンス電圧端子Tv
refとの間のf交流電位差は、前述の通シー −lm5i11(ωt−−)== ” lm008ωt
ωC)、1 2 −767 となる。このとき I 匠Im CXII G) t :i: D Co 
f fse t l≧Vf 8 BDであれば、クラン
プが掛シ、共振回路に蓄えられたエネルギーは、ショッ
トキ障壁ダイオード内で消費されて共振レベルは大幅に
軽減されて誤動作に対しても大きな動作余裕を得ること
ができる。
When there is a sudden movement in the input of the semiconductor device and series resonance starts, the input terminal TxN and the reference voltage terminal Tv
The f alternating current potential difference between
ωC), 1 2 −767. At this time I Takumi Im CXII G) t :i: D Co
If f fse t l≧Vf 8 BD, the clamp is engaged, the energy stored in the resonant circuit is consumed within the Schottky barrier diode, the resonance level is significantly reduced, and there is a large operating margin against malfunction. can be obtained.

第3図に波形a/ 、 b/ で示すように、入力が急
峻に立上った後、ショットキ障壁ダイオードでクランプ
がかかル、それ以後の共振を抑えることができる。
As shown by waveforms a/ and b/ in FIG. 3, after the input rises steeply, the Schottky barrier diode is clamped, and subsequent resonance can be suppressed.

第5図は本第2の発明の一実施例の等価回路図である。FIG. 5 is an equivalent circuit diagram of an embodiment of the second invention.

この実施例は、内部回路2と、この内部回路2の入力端
子TINに一方の電極が接続する容量素子CCLと、こ
の容量素子の他方の電極にアノードが接続し内部回路2
のリファレンス電圧端子Tvrefにカソードが接続す
る第1のダイオードD1と、容量素子CCLの他方の電
極にカソードが接続しリファレンス電圧端子Tvref
にアノードが接続する第2のダイオードDzとt半導体
基板に含んで構成される。即ち、ダイオードD1.Dx
と容量素子CCLとでクランプ回路を構成する。また、
ダイオードDi、Dxにはショットキ障壁ダイオードを
使用している′。容量素子CCLは直流電路を断ち。
This embodiment includes an internal circuit 2, a capacitive element CCL whose one electrode is connected to the input terminal TIN of the internal circuit 2, and an anode connected to the other electrode of this capacitive element.
A first diode D1 whose cathode is connected to the reference voltage terminal Tvref of
The semiconductor substrate includes a second diode Dz whose anode is connected to the semiconductor substrate. That is, diode D1. Dx
and a capacitive element CCL constitute a clamp circuit. Also,
Schottky barrier diodes are used for the diodes Di and Dx. Capacitive element CCL cuts off the DC current path.

入力直流電位差がVfllBnより大きくなる場合のシ
ョットキ障壁ダイオードの直流電流を切シ、入力端子に
対する負荷効果全軽減し、交流成分のみ過渡的にクラン
プが掛るようにしている。
When the input DC potential difference becomes larger than VfllBn, the DC current of the Schottky barrier diode is cut off, the load effect on the input terminal is completely reduced, and only the AC component is transiently clamped.

〔発明の効果〕〔Effect of the invention〕

以上詳細に説明したように1本発明によれば、入力に急
峻な動きがあっても誤動作するのを、防止することので
きる半導体装置が得られる。
As described in detail above, according to the present invention, a semiconductor device can be obtained that can prevent malfunction even if there is a steep movement in the input.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の半導体装置の一例のインピーダンス全説
明するための図、第2図は第1図の等価回路図、第3図
は従来品及び本発明品における入力端子側及び電源端子
側の各点に現われる電圧の波形図、第4図は本第1の発
明の一実施例の等価回路図、第5図は本Wc2の発明の
一実施例の等価回路図である。 l・・・・・・半導体基板、2・・・・・・内部回路、
C,Ct〜Cm 、σ1〜C’m 、 Cht ・−−
−−・入力配線容量、 CCL・・・・・・容量素子、
 Dl、 Dz・・・・・・ダイオード、Ll。 Lxx〜Ltn・・・・・・入力端子のインダクタンス
s L p 。 Lvcc 、 Lvmz・・・・・・電源端子のインダ
クタンス、TIN・・・・・・入力端子、Tp・・・・
・・電源端子、Tvref・・・・・・リファレンス電
圧端子、Vc・・・・・・高電位側電源端子、■ト・・
・・・低電位側電源端子、VIN・・・・・・入力電圧
レベル、 Vref・・・・・・リファレンス電圧。 第 1 回 叢2図 t ・ 第3 閉 第4回 恭S 口
Fig. 1 is a diagram for explaining all the impedances of an example of a conventional semiconductor device, Fig. 2 is an equivalent circuit diagram of Fig. 1, and Fig. 3 is a diagram of the input terminal side and power terminal side of the conventional product and the product of the present invention. A waveform diagram of the voltage appearing at each point, FIG. 4 is an equivalent circuit diagram of an embodiment of the first invention, and FIG. 5 is an equivalent circuit diagram of an embodiment of the invention Wc2. l...Semiconductor substrate, 2...Internal circuit,
C, Ct~Cm, σ1~C'm, Cht ・---
--・Input wiring capacitance, CCL... Capacitive element,
Dl, Dz...Diode, Ll. Lxx~Ltn... Inductance s L p of the input terminal. Lvcc, Lvmz...Inductance of power supply terminal, TIN...Input terminal, Tp...
...Power supply terminal, Tvref...Reference voltage terminal, Vc...High potential side power supply terminal,
...Low potential side power supply terminal, VIN...Input voltage level, Vref...Reference voltage. 1st series 2 drawings ・ 3rd closed 4th Kyo S mouth

Claims (2)

【特許請求の範囲】[Claims] (1) 内部回路と、該内部回路の入力端子にアノード
が接続され該内部回路のレファレンス電圧端子にカソー
ドが接続される第1のダイオードと、前記入力端子にカ
ソードが接続され前記レファレンス電圧端子にアノード
が接続される第2のダイオードと上半導体基板に含むこ
と全特徴とする半導体装置。
(1) an internal circuit; a first diode having an anode connected to an input terminal of the internal circuit and a cathode connected to a reference voltage terminal of the internal circuit; and a first diode having a cathode connected to the input terminal and connected to the reference voltage terminal; A semiconductor device comprising: a second diode to which an anode is connected; and an upper semiconductor substrate.
(2)内部回路と該内部回路の入力端子に一方の電極が
接続する容量素子と、該容量素子の他方の電極にアノー
ドが接続し前記内部回路のリップ、レンス電圧端子にカ
ソードが接続する第1のダイオードと、前記容量素子の
他方の電極にカソードが接続し前記リファレンス電圧端
子にアノードが接続する第2のダイオードと全半導体基
板に含むことを特徴とする半導体装置。
(2) an internal circuit and a capacitive element whose one electrode is connected to the input terminal of the internal circuit; and a capacitive element whose anode is connected to the other electrode of the capacitive element and whose cathode is connected to the lip and lens voltage terminals of the internal circuit. A semiconductor device comprising: a second diode having a cathode connected to the other electrode of the capacitive element and an anode connected to the reference voltage terminal; and a second diode having a second diode connected to the reference voltage terminal.
JP22371083A 1983-11-28 1983-11-28 Semiconductor device Granted JPS60115252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22371083A JPS60115252A (en) 1983-11-28 1983-11-28 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22371083A JPS60115252A (en) 1983-11-28 1983-11-28 Semiconductor device

Publications (2)

Publication Number Publication Date
JPS60115252A true JPS60115252A (en) 1985-06-21
JPH0362022B2 JPH0362022B2 (en) 1991-09-24

Family

ID=16802448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22371083A Granted JPS60115252A (en) 1983-11-28 1983-11-28 Semiconductor device

Country Status (1)

Country Link
JP (1) JPS60115252A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940450A (en) * 1987-06-17 1990-07-10 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Power transmission system using toothed belt of engine for vehicle
JP2015023177A (en) * 2013-07-19 2015-02-02 富士通セミコンダクター株式会社 Semiconductor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858763A (en) * 1981-10-05 1983-04-07 Toshiba Corp Manufacture of semiconductor device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858763A (en) * 1981-10-05 1983-04-07 Toshiba Corp Manufacture of semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940450A (en) * 1987-06-17 1990-07-10 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Power transmission system using toothed belt of engine for vehicle
JP2015023177A (en) * 2013-07-19 2015-02-02 富士通セミコンダクター株式会社 Semiconductor device

Also Published As

Publication number Publication date
JPH0362022B2 (en) 1991-09-24

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