Chip component and method for producing a chip component
View Patent ↗A chip component ( 1 ) includes a semiconductor body ( 2 ), in which at least one switchable element ( 6, 62 ) is arranged in a partial region ( 24 ) of the semiconductor body ( 2 ). The partial region ( 24 ) can be reached by light of at least one wavelength. Furthermore, a circuit ( 9 ) integrated into the semiconductor body ( 2 ) is provided, which integrated circuit can assume one configuration from at least two possible configurations, one of these configurations being prescribed by a state of the at least one switchable element ( 6, 62 ). Furthermore, a housing ( 3 ) is provided, which encloses the semiconductor body ( 2 ) and is arranged with a partial region ( 35, 32 ) at least partly above the partial region ( 24 ) of the semiconductor body ( 2 ). The partial region ( 35, 32 ) of the housing ( 3 ) is formed in such a way that light can be fed to the partial region ( 24 ) of the semiconductor body ( 2 ). It is thus possible even after a fabrication process to carry out a test and, if appropriate, to define a different configuration through switching of the element ( 6, 62 ).
1. A chip component, comprising:
a semiconductor body;
at least one switchable element disposed in a region of the semiconductor body that can be reached by light of at least one wavelength for the switching of the element;
an integrated circuit disposed in the semiconductor body and designed to assume one configuration from a set of at least two possible configurations, said one configuration being defined by a state of the at least one switchable element; and
a housing enclosing the semiconductor body, the housing having a region that is arranged at least partly above the region of the semiconductor body and is formed in such a way that the light can be fed to the region of the semiconductor body.
2. The chip component as claimed in claim 1 , wherein the region of the housing comprises a light-transmissive material.
3. The chip component as claimed in claim 1 , wherein the housing comprises a body having a depression and the semiconductor body is arranged in the depression in such a way that the region of the semiconductor body faces an opening of the depression.
4. The chip component as claimed in claim 1 , wherein the region of the housing includes a detachable cover.
5. The chip component as claimed in claim 1 , further comprising an adhesive that reversibly or irreversibly connects the region of the housing to the housing.
6. The chip component as claimed in claim 3 , wherein the housing has a groove or a spring at at least one side wall and a cover that closes the opening of the depression, the cover being formed with a spring or groove matching the groove or spring of the housing.
7. The chip component as claimed in claim 1 , wherein the switchable element comprises a one-time switchable element, a first switching state of the element being defined by an electrically conducting state of the element and a second switching state of the element being defined by an electrically blocking state.
8. The chip component as claimed in claim 1 , wherein the switchable element comprises a fusible link.
9. The chip component as claimed in claim 1 , wherein the integrated circuit comprises a writable memory.
10. The chip component as claimed in claim 1 , wherein the region of the semiconductor body has a first layer that includes the at least one switchable element, and wherein the region further has a second layer that is arranged above the first layer and is transmissive to light of the at least one wavelength.
11. The chip component as claimed in claim 10 , wherein the second layer comprises a material whose band gap is at least partly greater than energy of the light of the at least one wavelength.
12. The chip component as claimed in claim 10 , wherein the second layer comprises a silicon dioxide layer.