JPH02241038A - Charge transfer device - Google Patents
Charge transfer deviceInfo
- Publication number
- JPH02241038A JPH02241038A JP1062536A JP6253689A JPH02241038A JP H02241038 A JPH02241038 A JP H02241038A JP 1062536 A JP1062536 A JP 1062536A JP 6253689 A JP6253689 A JP 6253689A JP H02241038 A JPH02241038 A JP H02241038A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- point
- wiring
- transfer electrode
- electrode
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は電荷転送装置に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a charge transfer device.
従来の技術
近年、電荷転送装置は固体撮像装置における重要な機能
要素のひとつとして実用化されている。2. Description of the Related Art In recent years, charge transfer devices have been put into practical use as one of the important functional elements in solid-state imaging devices.
以下、図面を参照しながら電荷転送装置の構成について
説明する。The configuration of the charge transfer device will be described below with reference to the drawings.
第２図は電荷転送装置の全体構成図である。第２図にお
いて、１は電荷転送部、２は転送電極、３は配線用の導
電体、４はボンディングパッド、５は転送パルス、６転
送電極と配線用の導電体の接続点である。FIG. 2 is an overall configuration diagram of the charge transfer device. In FIG. 2, 1 is a charge transfer section, 2 is a transfer electrode, 3 is a wiring conductor, 4 is a bonding pad, 5 is a transfer pulse, and 6 is a connection point between the transfer electrode and the wiring conductor.
ボンディングパッド４に印加された転送用パルスφ１．
φ２．φ３は、配線用の導電体３を通って接続点６から
それぞれの転送電極２の両端に加えられる。The transfer pulse φ1. applied to the bonding pad 4.
φ2. φ3 is applied to both ends of each transfer electrode 2 from the connection point 6 through the wiring conductor 3.
発明が解決しようとする課頭
しかしながら、上記のような構成では、ひとつの転送電
極２の両端のＤ点とＥ点は、１本の配線用の導電体３上
の点であるため、ボンディングパッド４から、それぞれ
の点までの配線用導電体３の長さが異るため、配線抵抗
が異ってしまう。Problem to be Solved by the Invention However, in the above configuration, since points D and E at both ends of one transfer electrode 2 are points on one wiring conductor 3, bonding pads Since the length of the wiring conductor 3 from 4 to each point differs, the wiring resistance differs.
従って、ボンディングパッド４に印加されたパルスの位
相がＤ点とＥ点で異り、転送電極２に正確な転送用パル
スが加わらなくなってしまう。Therefore, the phase of the pulse applied to the bonding pad 4 differs between points D and E, and an accurate transfer pulse cannot be applied to the transfer electrode 2.
本発明は上記欠点に鑑み、転送電極２の両端に加わるパ
ルスの位相を合せるため、ボンディングパッド４から転
送電極の両端までの抵抗が等しい電荷転送装置を提供す
るものである。In view of the above drawbacks, the present invention provides a charge transfer device in which the resistance from the bonding pad 4 to both ends of the transfer electrode is equal in order to match the phase of the pulses applied to both ends of the transfer electrode 2.
課題を解決するための手段
上記問題を解決するために、本発明の電荷転送装置は配
線用の導電体を用いて電荷転送部上のそれぞれの転送電
極の両端に接続することで転送電圧を前記転送電極に印
加する場合に、前記配線用の導電体をボンディングパッ
ドから前記転送電極へ接続するまでに分岐させた後、そ
れぞれの前記転送電極の両端に接続する構成となってい
る。Means for Solving the Problems In order to solve the above problems, the charge transfer device of the present invention connects both ends of each transfer electrode on the charge transfer section using a conductor for wiring, thereby increasing the transfer voltage as described above. When applying voltage to the transfer electrodes, the wiring conductor is branched from the bonding pad to the transfer electrode, and then connected to both ends of each transfer electrode.
作用
この構成によって、ボンディングパッド４から転送電極
２の両端までの配線用の導電体の波形なまりを起こす抵
抗（Ｒ）と容量（Ｃ）の積Ｃ−Ｒが等しくなり、ボンデ
ィングパッド４から印加された転送用パルスが、転送電
極２の両端に達した時、両端での転送用パルスの位相が
等しくなり、転送電極２に正確な転送用パルスを伝達す
ることができる。Effect: With this configuration, the product C-R of the resistance (R) and capacitance (C), which causes waveform rounding of the wiring conductor from the bonding pad 4 to both ends of the transfer electrode 2, becomes equal, and the voltage applied from the bonding pad 4 becomes equal. When the transfer pulse reaches both ends of the transfer electrode 2, the phases of the transfer pulse at both ends become equal, and an accurate transfer pulse can be transmitted to the transfer electrode 2.
実施例
以下、本発明の実施例について、図面を参照しながら説
明する。第１図は本発明の実施例における電荷転送装置
の平面図である。７は配線用の導電体の分岐点である。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a charge transfer device in an embodiment of the present invention. 7 is a branch point of a conductor for wiring.
ボンディングパッド４から出た配線用の導電体３は分岐
点７で２本に別れ転送電極２の両端に接続される。転送
用パルスたとえばφ１は分岐点７により２本に別れた後
、転送電極２のＦ点、Ｇ点でひとつの転送電極の両端に
接続される。分岐点７とＦ点間の配線線抵抗と分岐点７
とＧの配線の波形なまりを起こす抵抗（Ｒ）と容量（Ｃ
）の積Ｃ−Ｒを、配線用の導電体の幅や厚さなどの調整
により等しくしであるため、転送用パルスφ１がＦ点と
Ｇ点で位相が等しくなり、転送電極２の両端に位相のそ
ろった転送用パルスφ１を伝達することができる。他の
転送用パルスについても同様である。The wiring conductor 3 coming out from the bonding pad 4 is separated into two at a branch point 7 and connected to both ends of the transfer electrode 2. The transfer pulse, for example φ1, is split into two at the branch point 7, and then connected to both ends of one transfer electrode at points F and G of the transfer electrode 2. Wiring line resistance between branch point 7 and F point and branch point 7
The resistance (R) and capacitance (C
) can be made equal by adjusting the width and thickness of the conductor for wiring, so the transfer pulse φ1 has the same phase at point F and point G, and the transfer pulse φ1 has the same phase at both ends of the transfer electrode 2. Transfer pulses φ1 having the same phase can be transmitted. The same applies to other transfer pulses.
第１図は、ボンディングパッド４から出た配線用の導電
体４を配線の途中で分岐点を設けているが、ボンディン
グパッドから直接２本の配線用の導電体３を出した場合
でも同様の効果を実現することができる。In Fig. 1, a branch point is provided in the middle of the wiring for the wiring conductor 4 coming out from the bonding pad 4, but the same situation will occur even if two wiring conductors 3 are taken out directly from the bonding pad. effect can be achieved.
発明の効果
以上のように、本発明によれば、ボンディングパッドか
ら転送電極の両端に接続するまでに、配線用の導電体を
分岐させることにより、ボンディングパッドに加えた転
送用パルスが転送電極の両端に伝達した時の転送パルス
の位相を等しくすることができるため、正確に転送パル
スを転送電極に伝達でき、その実用的効果は大なるもの
がある。Effects of the Invention As described above, according to the present invention, by branching the wiring conductor from the bonding pad to both ends of the transfer electrode, the transfer pulse applied to the bonding pad is applied to the transfer electrode. Since the phases of the transfer pulses transmitted to both ends can be made equal, the transfer pulses can be accurately transmitted to the transfer electrodes, which has great practical effects.
第１図は本発明の実施例電荷転送装置要部平面図、第２
図は従来の電荷転送装置の要部平面図である。
１・・・・・・電荷転送部、２・・・・・・転送電極、
３・・・・・・配線用の導電体、４・・・・・・ボンデ
ィングパッド、６・・・・・・転送電極と配線用の導電
体の接続点、７・・・・・・配線用の導電体の分岐点。
代理人の氏名 弁理士 粟野重孝 ほか１名第１図FIG. 1 is a plan view of the main part of a charge transfer device according to an embodiment of the present invention, and FIG.
The figure is a plan view of essential parts of a conventional charge transfer device. 1...Charge transfer section, 2...Transfer electrode,
3... Conductor for wiring, 4... Bonding pad, 6... Connection point between transfer electrode and conductor for wiring, 7... Wiring Branch point of conductor for. Name of agent: Patent attorney Shigetaka Awano and one other person Figure 1
Claims (2)
する配線用の導電体を前記配線用の導電体を、ボンディ
ングパッドから前記転送電極の両端へそれぞれ分岐させ
て配設し、その各々を前記転送電極の両端に接続した電
荷転送装置。(1) Wiring conductors connected to both ends of each transfer electrode on the charge transfer section are arranged by branching the wiring conductors from the bonding pads to both ends of the transfer electrode, and each is connected to both ends of the transfer electrode.
でのそれぞれの配線の抵抗（Ｒ）と容量（Ｃ）との積Ｃ
・Ｒが等しい請求項１記載の電荷転送装置。(2) Product C of the resistance (R) and capacitance (C) of each wiring from the branch point of the wiring conductor to both ends of one transfer electrode
- The charge transfer device according to claim 1, wherein R is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1062536A JP2523859B2 (en) | 1989-03-15 | 1989-03-15 | Charge transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1062536A JP2523859B2 (en) | 1989-03-15 | 1989-03-15 | Charge transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02241038A true JPH02241038A (en) | 1990-09-25 |
| JP2523859B2 JP2523859B2 (en) | 1996-08-14 |
Family
ID=13203033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1062536A Expired - Lifetime JP2523859B2 (en) | 1989-03-15 | 1989-03-15 | Charge transfer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523859B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441586A (en) * | 1987-08-07 | 1989-02-13 | Toshiba Corp | Solid-state image pick-up device |
-
1989
- 1989-03-15 JP JP1062536A patent/JP2523859B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441586A (en) * | 1987-08-07 | 1989-02-13 | Toshiba Corp | Solid-state image pick-up device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523859B2 (en) | 1996-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090531 Year of fee payment: 13 |
|
| EXPY | Cancellation because of completion of term |