JP2015510689A - 活性ドリフトゾーンを有する半導体構成 - Google Patents
活性ドリフトゾーンを有する半導体構成 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 480
- 210000000746 body region Anatomy 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 30
- 230000000295 complement effect Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 description 38
- 239000011159 matrix material Substances 0.000 description 8
- 239000002800 charge carrier Substances 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 230000005669 field effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000013642 negative control Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
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Abstract
Description
Claims (28)
- 半導体層(100)と、
第1の半導体素子(2)と、複数のn個の第2の半導体素子(31〜3n)(n>1)とを有する、少なくとも1つの直列回路(1)であって、前記第1の半導体素子(2)は、負荷経路を有し、かつ、前記半導体層内に集積された活性素子領域を有し、前記第2の半導体素子(31〜3n)のそれぞれは、前記半導体層内に集積された活性素子領域を有し、かつ、第1の負荷端子(321〜32n)と第2の負荷端子(331〜33n)との間の負荷経路と、制御端子(311〜31n)と、を有し、前記第2の半導体素子(31〜3n)は、それらの負荷経路が、互いに直列接続されており、かつ、前記第1の半導体素子(2)の前記負荷経路に直列接続されており、前記第2の半導体素子(31〜3n)のそれぞれはその制御端子(311〜31n)が、他の第2の半導体素子(31〜3n)のうちの1つの前記負荷端子に接続されており、前記第2の半導体素子(31〜3n)のうちの1つはその制御端子(311〜31n)が、前記第1の半導体素子(2)の負荷端子(22、23)の一方に接続されている、前記少なくとも1つの直列回路(1)と、
エッジ終端構造(4)と、
を備える半導体素子構成。 - 前記第1の半導体素子(2)はトランジスタである、請求項1に記載の半導体素子構成。
- 前記第1の半導体素子(2)はダイオードである、請求項1に記載の半導体素子構成。
- 前記第1の半導体素子の前記活性素子領域および前記第2の半導体素子の前記活性素子領域は、前記半導体層(100)において長手方向に一直線に並んでおり、
前記エッジ終端構造(4)は、少なくとも前記長手方向に垂直な方向において前記活性素子領域に隣接している、
請求項1〜3のいずれか一項に記載の半導体素子構成。 - 2つの直列回路(1I、1II)であって、各直列回路は、第1の半導体素子(2)と、複数のn個の第2の半導体素子(31〜3n)を備え、各直列回路の前記第1の半導体素子(2)および前記第2の半導体素子(31〜3n)の前記活性素子領域は、前記半導体層(100)において一直線に並んでいて、前記第1の半導体素子の前記活性素子領域が配置されている第1の長手方向端部と、前記第2の半導体素子(31〜3n)の前記活性素子領域が配置されている第2の長手方向端部と、を有する長手方向構造を形成しており、前記2つの直列回路(1I、1II)の前記長手方向構造は一直線に並んでいて、第1および第2の長手方向構造の第2の長手方向端部同士が隣接している、前記2つの直列回路(1I、1II)
をさらに備える、請求項1〜4のいずれか一項に記載の半導体素子構成。 - 前記2つの直列回路同士は、電気的に並列接続されている、請求項5に記載の半導体素子構成。
- 前記エッジ終端構造(4)は、第1の方向において前記長手方向構造に隣接している第1の部分エッジ終端構造(41)と、前記第1の方向とは逆の第2の方向において前記長手方向構造に隣接している第2の部分エッジ終端構造(42)と、を備える、請求項5または6に記載の半導体素子構成。
- 前記部分エッジ終端構造(41、42)の少なくとも一方が、
前記直列回路(1I、1II)の一方における前記第1の半導体素子(2)または前記第2の半導体素子(31〜3n)のうちの1つに関連付けられ、かつ、前記直列回路(1I、1II)の他方における対応する半導体素子に関連付けられた、第1のフィールドリング(410)を備え、
前記第1のフィールドリング(410)は、前記第1のフィールドリング(410)が関連付けられた前記半導体素子同士の前記活性素子領域間に延びて、前記第1のフィールドリング(410)が関連付けられた前記半導体素子の第1の負荷端子に接続する、
請求項7に記載の半導体素子構成。 - 前記第1のフィールドリング(410)は、前記半導体層(100)の水平面において楕円形または円形である、請求項8に記載の半導体素子構成。
- 前記半導体層(100)は、前記第1のフィールドリング(410)が配置された領域において第1のドープ型の基本ドープを有し、
前記第1のフィールドリング(410)は、前記第1のドープ型に対して相補的な第2のドープ型のドープ領域を含む、
請求項8または9に記載の半導体素子構成。 - 前記第1のフィールドリング(410)に隣接し、前記半導体層(100)の第1の面の上を前記第1のフィールドリング(410)に沿って延びる導電線(420)
をさらに備える、請求項10に記載の半導体素子構成。 - 前記第1のドープ型であり、前記半導体層(100)の前記基本ドープより高度にドープされた第2のフィールドリング(430)であって、前記第1のフィールドリング(410)に隣接し、前記第1のフィールドリング(410)に沿って延びる前記第2のフィールドリング(430)
をさらに備える、請求項10または11に記載の半導体素子構成。 - 前記第1のフィールドリング(410)と前記第2のフィールドリング(430)は、前記半導体層(100)の前記第1の面の上に配置された導電線(420)を介して電気的に接続されている、請求項12に記載の半導体素子構成。
- 前記エッジ終端構造(4)は、前記第1のフィールドリング(410)で形成されたソース領域を有するMOSFETを備え、
前記直列回路(1I−1II)の前記第2の半導体素子(31〜3n)の負荷端子と結合された、前記第2のドープ型のドリフト領域(45)と、
前記第1のドープ型のボディ領域(46)と、
前記ボディ領域(46)に隣接し、ゲート誘電体(48)によって前記ボディ領域(46)から誘電的に絶縁されているゲート電極(47)と、をさらに備える、
請求項10に記載の半導体素子構成。 - 前記MOSFETは、
前記第1のドープ型であり、前記基本ドープより高度にドープされており、前記ドリフト領域に隣接している半導体領域(49)をさらに備える、
請求項14に記載の半導体素子構成。 - 前記第1のフィールドリング(410)が関連付けられている前記半導体素子は、制御端子を有するトランジスタであり、
前記MOSFETの前記ゲート電極は、前記制御端子に接続されている、
請求項14または15に記載の半導体素子構成。 - 前記第1のフィールドリング(410)は、前記第1の半導体素子(2)に関連付けられている、請求項8〜16のいずれか一項に記載の半導体素子構成。
- 前記部分エッジ終端構造(41−42)の少なくとも一方が、
複数の第1のフィールドリング(410〜41n)を備え、それぞれは、前記直列回路(1I−1II)の一方において、前記第1の半導体素子(2)、または前記第2の半導体素子(31〜3n)のうちの1つに関連付けられており、かつ、前記直列回路(1I−1II)の他方において、対応する半導体素子に関連付けられており、
各第1のフィールドリングは、各第1のフィールドリングが関連付けられた前記半導体素子の前記活性素子領域間を延びており、各第1のフィールドリングが関連付けられた前記半導体素子の前記第1の負荷端子に接続されている、
請求項6〜17のいずれか一項に記載の半導体素子構成。 - 前記第1の半導体素子(2)および前記第2の半導体素子(31〜3n)のそれぞれが、関連付けられたフィールドリングを有する、請求項18に記載の半導体素子構成。
- 前記第1のドープ型であり、前記半導体層(100)の前記基本ドープより高度にドープされている、複数の第2のフィールドリング(420〜42n)をさらに備え、各第2のフィールドリング(420〜42n)は、1つの第1のフィールドリング(410〜41n)に関連付けられており、前記関連付けられた第1のフィールドリング(410〜41n)に隣接しており、前記関連付けられた第1のフィールドリング(410〜41n)に沿って延びている、
請求項18または19に記載の半導体素子構成。 - 複数の導電線(430〜43n)をさらに備え、各導電線(430〜43n)は、1つの第1のフィールドリング(410〜41n)と、関連付けられた第2のフィールドリング(420〜42n)とを電気的に接続している、
請求項20に記載の半導体素子構成。 - 前記第2の半導体素子(31〜3n)はMOSFETであり、各MOSFETは、ソース端子が第1の負荷端子であり、ドレイン端子が第2の負荷端子であり、ゲート端子が制御端子である、請求項1〜21のいずれか一項に記載の半導体素子構成。
- 前記第2の半導体素子(31〜3n)はFINFETである、請求項22に記載の半導体素子構成。
- 前記半導体層(100)は、半導体ボディの一部分であるか、半導体ボディを形成している、請求項1〜23のいずれか一項に記載の半導体素子構成。
- 前記半導体層(100)は、SOI基板の一部分である、請求項1〜24のいずれか一項に記載の半導体素子構成。
- 半導体層(100)と、
第1の半導体素子(2)と、複数のn個の第2の半導体素子(31〜3n)(n>1)とを有する、少なくとも1つの直列回路と、を備え、前記第1の半導体素子(2)は、負荷経路を有し、かつ、前記半導体層(100)内に集積された活性素子領域を有し、前記第2の半導体素子(31〜3n)のそれぞれは、前記半導体層(100)内に集積された活性素子領域を有し、かつ、第1の負荷端子(321〜32n)と第2の負荷端子(331〜33n)との間の負荷経路と、制御端子(311〜31n)と、を有し、前記第2の半導体素子(31〜3n)は、それらの負荷経路が、互いに直列接続されており、かつ、前記第1の半導体素子(2)の前記負荷経路に直列接続されており、前記第2の半導体素子(31〜3n)のそれぞれはその制御端子が、他の第2の半導体素子(31〜3n)のうちの1つの前記負荷端子に接続されており、前記第2の半導体素子(31〜3n)のうちの1つはその制御端子が、前記第1の半導体素子(2)の負荷端子(22、23)の一方に接続されており、
前記第1の半導体素子(2)の前記活性素子領域は、前記半導体層(100)の水平面において前記第2の半導体素子(31〜3n)の前記活性素子領域を取り囲んでいる、
半導体素子構成。 - n−1個の第2の半導体素子のそれぞれの活性素子領域が、別の第2の半導体素子の活性素子領域に隣接しており、前記別の第2の半導体素子の前記活性素子領域を取り囲んでいる、請求項26に記載の半導体素子構成。
- 3個、4個、5個の、5個より多くの、10個より多くの、または20個より多くの第2の半導体素子(31〜3n)を備える、請求項1〜27のいずれか一項に記載の半導体素子構成。
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