JP2017108051A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 198
- 238000004519 manufacturing process Methods 0.000 title claims description 40
- 238000009792 diffusion process Methods 0.000 claims abstract description 347
- 239000012535 impurity Substances 0.000 claims abstract description 279
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims description 24
- 239000010410 layer Substances 0.000 description 191
- 230000005669 field effect Effects 0.000 description 23
- 150000002500 ions Chemical class 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
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- 230000015556 catabolic process Effects 0.000 description 7
- 238000000206 photolithography Methods 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 210000000746 body region Anatomy 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 2
- -1 phosphorus ions Chemical class 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
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- 229920005591 polysilicon Polymers 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】この半導体装置は、第1導電型の半導体基板と、半導体基板に配置された第2導電型の第1及び第2の埋め込み拡散層と、半導体基板上に配置された半導体層と、半導体層に配置され、第1の埋め込み拡散層上で半導体層の第1の領域を平面視で囲む第2導電型の第1の不純物拡散領域と、半導体層において第2の埋め込み拡散層上に配置された第2導電型の第2の不純物拡散領域と、半導体層の第1の領域に配置された第2導電型の第1のウエルと、半導体層において第2の不純物拡散領域に接する第2の領域に配置された第1導電型の第2のウエルと、第1のウエルに配置された第1導電型の第3及び第4の不純物拡散領域と、第2のウエルに配置された第1導電型の第5の不純物拡散領域とを備える。
【選択図】図1
Description
<半導体装置>
本発明の一実施形態に係る半導体装置は、複数の異なる種類の回路素子を混載しているが、以下においては、それらの回路素子の例について、図1〜図4を参照しながら説明する。なお、図1〜図4に示した複数の異なる種類の回路素子は、同一の下地基板10上に配置される。
次に、本発明の一実施形態に係る半導体装置の製造方法について説明する。本発明の一実施形態に係る半導体装置の製造方法は、複数の異なる種類の回路素子を混載した半導体装置を製造することが可能であるが、以下においては、それらの回路素子の製造工程について、図5A〜図8Bを参照しながら説明する。なお、図5A〜図8Bに示した複数の異なる種類の回路素子の製造工程は、同一の下地基板10上で行われる。
Claims (6)
- 第1導電型の半導体基板と、
前記半導体基板に配置された第2導電型の第1及び第2の埋め込み拡散層と、
前記半導体基板上に配置された半導体層と、
前記半導体層に配置され、前記第1の埋め込み拡散層上で前記半導体層の第1の領域を平面視で囲む第2導電型の第1の不純物拡散領域と、
前記半導体層において前記第2の埋め込み拡散層上に配置された第2導電型の第2の不純物拡散領域と、
前記半導体層の第1の領域に配置された第2導電型の第1のウエルと、
前記半導体層において前記第2の不純物拡散領域に接する第2の領域に配置された第1導電型の第2のウエルと、
前記第1のウエルに配置された第1導電型の第3及び第4の不純物拡散領域と、
前記第2のウエルに配置された第1導電型の第5の不純物拡散領域と、
を備える半導体装置。 - 前記半導体基板に配置された第2導電型の第3の埋め込み拡散層と、
前記半導体層に配置され、前記第3の埋め込み拡散層上で前記半導体層の第3の領域を平面視で囲む第2導電型の第6の不純物拡散領域と、
前記半導体層の第3の領域に配置された第2導電型の第3のウエルと、
前記第3のウエルに配置された第2導電型の第7の不純物拡散領域と、
少なくとも前記第7の不純物拡散領域上に配置された第1導電型の第8の不純物拡散領域と、
をさらに備える、請求項1記載の半導体装置。 - 前記半導体基板に配置された第2導電型の第3の埋め込み拡散層と、
前記第3の埋め込み拡散層上の前記半導体層の第3の領域に配置された第2導電型の第3のウエルと、
前記第3のウエルに配置された第1導電型の第6の不純物拡散領域と、
前記第3のウエルに配置された第2導電型の第7の不純物拡散領域と、
前記第3のウエル上に絶縁膜を介して配置されたゲート電極と、
前記第6の不純物拡散領域に配置された第2導電型の第8の不純物拡散領域と、
をさらに備える、請求項1記載の半導体装置。 - 第1導電型の半導体基板に第2導電型の第1及び第2の埋め込み拡散層を同時に形成する工程と、
前記半導体基板上に半導体層を形成する工程と、
前記第1の埋め込み拡散層上で前記半導体層の第1の領域を平面視で囲む第2導電型の第1の不純物拡散領域を前記半導体層に形成し、同時に、前記半導体層において前記第2の埋め込み拡散層上に第2導電型の第2の不純物拡散領域を形成する工程と、
前記半導体層の第1の領域に第2導電型の第1のウエルを形成する工程と、
前記半導体層において前記第2の不純物拡散領域に接する第2の領域に第1導電型の第2のウエルを形成する工程と、
前記第1のウエルに第1導電型の第3及び第4の不純物拡散領域を形成し、同時に、前記第2のウエルに第1導電型の第5の不純物拡散領域を形成する工程と、
を備える半導体装置の製造方法。 - 第1導電型の半導体基板に第2導電型の第1〜第3の埋め込み拡散層を同時に形成する工程と、
前記半導体基板上に半導体層を形成する工程と、
前記第1の埋め込み拡散層上で前記半導体層の第1の領域を平面視で囲む第2導電型の第1の不純物拡散領域を前記半導体層に形成し、同時に、前記第2の埋め込み拡散層上で前記半導体層の第2の領域を平面視で囲む第2導電型の第2の不純物拡散領域を前記半導体層に形成し、前記半導体層において前記第3の埋め込み拡散層上に第2導電型の第3の不純物拡散領域を形成する工程と、
前記半導体層の第1の領域に第2導電型の第1のウエルを形成し、同時に、前記半導体層の第2の領域に第2導電型の第2のウエルを形成する工程と、
前記半導体層において前記第3の不純物拡散領域に接する第3の領域に第1導電型の第3のウエルを形成する工程と、
前記第2のウエルに第2導電型の第4の不純物拡散領域を形成する工程と、
前記第1のウエルに第1導電型の第5及び第6の不純物拡散領域を形成し、同時に、少なくとも前記第4の不純物拡散領域上に第1導電型の第7の不純物拡散領域を形成し、前記第3のウエルに第1導電型の第8の不純物拡散領域を形成する工程と、
を備える半導体装置の製造方法。 - 第1導電型の半導体基板に第2導電型の第1〜第3の埋め込み拡散層を同時に形成する工程と、
前記半導体基板上に半導体層を形成する工程と、
前記第1の埋め込み拡散層上で前記半導体層の第1の領域を平面視で囲む第2導電型の第1の不純物拡散領域を前記半導体層に形成し、同時に、前記半導体層において前記第2の埋め込み拡散層上に第2導電型の第2の不純物拡散領域を形成する工程と、
前記半導体層の第1の領域に第2導電型の第1のウエルを形成し、同時に、前記第3の埋め込み拡散層上の前記半導体層の第2の領域に第2導電型の第2のウエルを形成する工程と、
前記第2のウエルに第1導電型の第3の不純物拡散領域を形成する工程と、
前記第2のウエルに第2導電型の第4の不純物拡散領域を形成する工程と、
前記半導体層において前記第2の不純物拡散領域に接する第3の領域に第1導電型の第3のウエルを形成する工程と、
前記第2のウエル上に絶縁膜を介してゲート電極を形成する工程と、
前記第3の不純物拡散領域に第2導電型の第5の不純物拡散領域を形成する工程と、
前記第1のウエルに第1導電型の第6及び第7の不純物拡散領域を形成し、同時に、前記第3のウエルに第1導電型の第8の不純物拡散領域を形成する工程と、
を備える半導体装置の製造方法。
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