Method and apparatus for doping semiconductor material
First Claim
1. Method for doping semiconductor material, including a container into which doping material is led and aimed at the semiconductor material by means of an electrical field, which comprises placing a low-pressure plasma containing the doping material in a hydrogen-phosphine mixture in the container, maintaining the low-pressure plasma at a pressure of substantially 8×
- 10-4 torr, placing a high-frequency coil around the container, maintaining the frequency of the coil at substantially 4 MHz, and exciting the plasma to lead doping material ions into the semiconductor material by means of the electrical field.
1 Assignment
0 Petitions
Accused Products
Abstract
Method for doping semiconductor material, including a container into which doping material is led and aimed at the semiconductor material by means of an electrical field, which includes maintaining the doping material in a plasma in the container, and leading doping material ions into the semiconductor material by means of the electrical field, and an apparatus for carrying out the method.
94 Citations
16 Claims
-
1. Method for doping semiconductor material, including a container into which doping material is led and aimed at the semiconductor material by means of an electrical field, which comprises placing a low-pressure plasma containing the doping material in a hydrogen-phosphine mixture in the container, maintaining the low-pressure plasma at a pressure of substantially 8×
- 10-4 torr, placing a high-frequency coil around the container, maintaining the frequency of the coil at substantially 4 MHz, and exciting the plasma to lead doping material ions into the semiconductor material by means of the electrical field.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
Specification