"Biochips" are made by depositing spots of biological macromolecules-such as nucleic acids, proteins or antibodies-in a high-density, high-precision array on a tiny area of a solid substrate such as glass or a nylon membrane, to create a chip about the size of a postage stamp.
生物晶片就是將生物的大分子，如核酸、蛋白質、抗體等，用微面積、高密度方法精確的點製在如玻璃片、尼龍膜片的固體材質上，製成如一張郵票大小的晶片。