Camera module, manufacturing method of camera module, electronic apparatus, and manufacturing method of electronic apparatus
View Patent ↗An optical structure is disposed on a surface of a device substrate, and a lens system for introducing external light into a solid-state image pickup device is placed in the center of the optical structure. The outer shape of the optical structure seen from the light incident side of the lens system is rectangular, and its plane shape forms a rectangular frame section. An intermediate structure is disposed between the device substrate and the optical structure. The intermediate structure has a fitting section for fitting the optical structure in a part of side faces of the frame section.
1. A camera module comprising:
an optical structure capable of adjusting a focal point of a lens system;
a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system;
an intermediate structure disposed between the optical structure and the device substrate, and
a coil terminal extended along a side face of the optical structure to a coil connection terminal section formed in the device substrate,
wherein at least one of the optical structure and the intermediate structure has a fitting section for fitting the other structure, and
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.
2. The camera module according to claim 1 , wherein the intermediate structure is fixed to the device substrate.
3. The camera module according to claim 1 , wherein
the fitting section is provided in at least two positions.
4. The camera module according to claim 1 , wherein
fitting sections in at least two positions among the fitting sections are holding projecting sections that project from one structure having the fitting sections so as to hold the optical structure.
5. The camera module according to claim 4 , wherein
the other structure has notched portions corresponding to the holding projecting sections.
6. The camera module according to claim 5 , wherein
the holding projecting section has a fitting pawl.
7. The camera module according to claim 5 , wherein
an outer shape of the optical structure seen from a light incident side of the lens system is rectangular, and the optical structure has the holding projecting sections, or the notched portions corresponding to the holding projecting sections, at positions biased to corners of the rectangular shape.
8. The camera module according to claim 1 , wherein
the device substrate is a leadless chip carrier substrate.
9. The camera module according to claim 1 , wherein
the optical structure has a projecting section projecting toward the intermediate structure, and the intermediate structure has a notched portion corresponding to the projecting section of the optical structure.
10. The camera module according to claim 9 , wherein
the fitting projecting section of the optical structure has a fitting pawl.
11. The camera module according to claim 9 , further comprising:
a coil incorporated in the optical structure to adjust the focal point of the lens system; and
a coil terminal drawn from the coil and extended along the projecting section of the optical structure to a coil connection terminal section formed in the device substrate.
12. A camera module comprising:
an optical structure having a coil for adjusting a focal point of a lens system;
a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system; and
a coil terminal extended along a side face of the optical structure to a coil connection terminal section formed in the device substrate, wherein
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.
13. The camera module according to claim 12 , wherein
at least one of the optical structure and the intermediate structure has holding projecting sections which are formed at two positions so as to hold the other structure.
14. The camera module according to claim 13 , wherein
the other structure has notched portions corresponding to the holding projecting sections.
15. The camera module according to claim 12 , further comprising an image signal processing circuit mounted on the device substrate,
wherein the coil connection terminal section corresponding to the coil terminal is positioned on an opposite side to a mount position of the image signal processing circuit.
16. The camera module according to claim 12 , wherein
the device electric substrate is a leadless chip carrier substrate.
17. The camera module according to claim 12 , further comprising an intermediate structure disposed between the optical structure and the device substrate,
wherein the optical structure has a projecting section projecting toward the intermediate structure, and
the coil terminal is placed along the projecting section of the optical structure.
18. The camera module according to claim 17 , wherein
the intermediate structure has a notched portion corresponding to the projecting section.
19. An electronic apparatus comprising:
a camera module mounted on an apparatus substrate,
said camera module further comprising:
an optical structure capable of adjusting a focal point of a lens system;
a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system; and
an intermediate structure disposed between the optical structure and the device substrate, and
a coil terminal extended along a side face of the optical structure to a coil connection terminal section formed in the device substrate,
wherein at least one of the optical structure and the intermediate structure has a fitting section for fitting the other structure, and
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.
20. An electronic apparatus comprising:
a camera module mounted on an apparatus substrate,
said camera module further comprising:
an optical structure having a coil for adjusting a focal point of a lens system;
a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system; and
a coil terminal extended along a side face of the optical structure to a coil connection terminal section formed in the device substrate, wherein
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.
21. A manufacturing method of a camera module comprising an optical structure capable of adjusting a focal point of a lens system, a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system, and an intermediate structure disposed between the optical structure and the device substrate, and a coil terminal extended along a side face of the optical structure to a coil connection terminal section formed in the device substrate,
said method comprising:
mounting the solid-state image pickup device on the device substrate;
fixing the intermediate structure to the device substrate on an outer periphery of the solid-state image pickup device after said mounting the solid-state image pickup device on the device substrate; and
fitting the intermediate structure and the optical structure, wherein
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.
22. The manufacturing method of a camera module according to claim 21 , further comprising
inspecting characteristics of the camera module by supplying a predetermined signal to a connection terminal section of the device substrate in a state in which the intermediate structure and the optical structure are fitted, and supplying a coil current to the coil terminal drawn from the coil incorporated in the optical structure to adjust the focal point of the lens system and extended to the coil connection terminal section.
23. The manufacturing method of a camera module according to claim 21 , further comprising
inspecting characteristics of the device substrate on which the solid-state image pickup device is mounted, before said fixing the intermediate structure to the device substrate or said fitting the intermediate structure and the optical structure.
24. A manufacturing method of an electronic apparatus by connecting to an apparatus substrate a camera module comprising an optical structure having a coil for adjusting a focal point of a lens system, a device substrate on which a solid-state image pickup device is mounted to correspond to the lens system, an intermediate structure disposed between the optical structure and the device substrate, and a coil terminal taken out from a side face of the optical structure and extended along a side face of the intermediate structure to a coil connection terminal section formed in the device substrate, said method comprising:
mounting the solid-state image pickup device on the device substrate;
fixing the intermediate structure to the device substrate on an outer periphery of the solid-state image pickup device after said mounting the solid-state image pickup device on the device substrate;
fitting the intermediate structure and the optical structure;
correctly positioning the device substrate and the apparatus substrate with respect to each other; and
connecting the coil terminal to the coil connection terminal section and the apparatus substrate by electrically connecting the device substrate and the apparatus substrate after correctly positioning the device substrate and the apparatus substrate with respect to each other,
wherein
the coil connection terminal section corresponding to the coil terminal has a larger area than other connection terminal section formed in the device substrate.