n-typeadj.

Brit.

/ˈɛntʌɪp/, U.S.

/ˈɛnˌtaɪp/

Origin: Formed within English, by compounding. Etymons: negative adj., type n.

Etymology: < n- (in negative adj.; compare quot. 1946) + type n. Compare p-type adj.

Physics.

Designating (a region in) a semiconductor in which electrical conduction is due chiefly to the movement of electrons. Opposed to p-type adj.

ΘΚΠ

the world > matter > physics > solid state physics > semiconductivity > [adjective] > relating to semiconductor type or region

intrinsic1933

n-type1946

p-type1946

injected1949

PNP1949

NPN1951

1946 J. A. Becker et al. in Trans. Amer. Inst. Electr. Engineers 65 714/1 The theoretical and experimental physicists have established that there are two types of electronic semiconductors which can be called N and P type, depending on whether the carriers are negative electrons or are equivalent to positive ‘holes’ in the filled energy band.

1948 H. C. Torrey & C. A. Whitmer Crystal Rectifiers iii. 49 A semiconductor that conducts principally by electrons in the nearly empty band is said to be an ‘n-type’ semiconductor.

1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors i. 8 If this type of impurity semiconduction is predominant the material is said to be an n-type extrinsic semiconductor, or simply of n-type.

1990 Austral. Personal Computer Feb. 88/1 FETs consist of two regions of one type of conductivity located on a substrate of the opposite conductivity—for example, two n-type regions on a p-type substrate.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	n-type
释义	n-typeadj. Brit. /ˈɛntʌɪp/, U.S. /ˈɛnˌtaɪp/ Origin: Formed within English, by compounding. Etymons: negative adj., type n. Etymology: < n- (in negative adj.; compare quot. 1946) + type n. Compare p-type adj. Physics. Designating (a region in) a semiconductor in which electrical conduction is due chiefly to the movement of electrons. Opposed to p-type adj. ΘΚΠ the world > matter > physics > solid state physics > semiconductivity > [adjective] > relating to semiconductor type or region intrinsic1933 n-type1946 p-type1946 injected1949 PNP1949 NPN1951 1946 J. A. Becker et al. in Trans. Amer. Inst. Electr. Engineers 65 714/1 The theoretical and experimental physicists have established that there are two types of electronic semiconductors which can be called N and P type, depending on whether the carriers are negative electrons or are equivalent to positive ‘holes’ in the filled energy band. 1948 H. C. Torrey & C. A. Whitmer Crystal Rectifiers iii. 49 A semiconductor that conducts principally by electrons in the nearly empty band is said to be an ‘n-type’ semiconductor. 1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors i. 8 If this type of impurity semiconduction is predominant the material is said to be an n-type extrinsic semiconductor, or simply of n-type. 1990 Austral. Personal Computer Feb. 88/1 FETs consist of two regions of one type of conductivity located on a substrate of the opposite conductivity—for example, two n-type regions on a p-type substrate. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < adj.1946
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