Fan-out sensor package and optical-type fingerprint sensor module including the same

Patent metadata

Field	Value
Publication number	US-10629641-B2
Application number	US-201816037629-A
Country	US
Kind code	B2
Filing date	Jul 17, 2018
Priority date	Oct 19, 2017
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A fan-out sensor package includes: a first connection member having a through-hole and including a first wiring layer; a sensor chip disposed in the through-hole; an optical lens disposed in the through-hole and attached to the sensor chip; an encapsulant encapsulating at least portions of the first connection member, the sensor chip, and the optical lens; and a second connection member including a first insulating layer disposed on the first connection member, the sensor chip, and the optical lens, a redistribution layer disposed on the first insulating layer, and a second insulating layer disposed on the first insulating layer and covering the redistribution layer. The redistribution layer electrically connects the first wiring layer and the connection pads, the first insulating layer has a cavity exposing at least a portion of one surface of the optical lens, and one side of the cavity is closed by the second insulating layer.

First claim

What is claimed is:

1. A fan-out sensor package comprising:
a first connection member having a through-hole and including a first wiring layer;
a sensor chip disposed in the through-hole and having an active surface having connection pads disposed thereon and an inactive surface opposing the active surface;
an optical lens disposed in the through-hole and attached to the active surface of the sensor chip;
an encapsulant encapsulating at least portions of the first connection member, the sensor chip, and the optical lens; and
a second connection member including a first insulating layer disposed on the first connection member, the active surface of the sensor chip, and the optical lens, a redistribution layer disposed on the first insulating layer, and a second insulating layer disposed on the first insulating layer and covering the redistribution layer,
wherein the redistribution layer electrically connects the first wiring layer and the connection pads,
the first insulating layer has a cavity exposing at least a portion of one surface of the optical lens, and
one side of the cavity is closed by the second insulating layer.

2. The fan-out sensor package of claim 1 , wherein each of the first and second insulating layers is a polymer layer including an insulating resin.

3. The fan-out sensor package of claim 2 , wherein the insulating resin is a photosensitive insulating resin.

4. The fan-out sensor package of claim 2 , wherein the second insulating layers is an outmost layer of the fan-out sensor package.

5. The fan-out sensor package of claim 1 , wherein the second insulating layer has a film form.

6. The fan-out sensor package of claim 1 , wherein one surface of the first wiring layer and one surface of the optical lens are disposed on the same level.

7. The fan-out sensor package of claim 1 , wherein the sensor chip includes an image sensor.

8. The fan-out sensor package of claim 7 , wherein the sensor chip includes a complementary metal oxide semiconductor (CMOS) image sensor (CIS).

9. The fan-out sensor package of claim 1 , wherein the redistribution layer is electrically connected to the connection pads through first vias penetrating through at least portions of the first insulating layer and the encapsulant, and is electrically connected to the first wiring layer through second vias penetrating through the first insulating layer, and
the first via has a height greater than that of the second via.

10. The fan-out sensor package of claim 9 , wherein the first via includes a third via penetrating through the first insulating layer and a fourth via penetrating through at least a portion of the encapsulant, and
the third and fourth vias are connected to each other by a via pad disposed on the encapsulant.

11. The fan-out sensor package of claim 1 , wherein the redistribution layer is electrically connected to the connection pads through first vias penetrating through the first insulating layer and the optical lens, and is electrically connected to the first wiring layer through second vias penetrating through the first insulating layer, and
the first via has a height greater than that of the second via.

12. The fan-out sensor package of claim 1 , wherein the first connection member includes an insulating layer, the first wiring layer disposed on one surface of the insulating layer, a second wiring layer disposed on the other surface of the insulating layer, and vias penetrating through the insulating layer and electrically connecting the first and second wiring layers to each other, and
the first and second wiring layers are electrically connected to the connection pads.

13. The fan-out sensor package of claim 12 , further comprising:
a backside redistribution layer disposed on the encapsulant;
backside vias penetrating through at least portions of the encapsulant and electrically connecting the second wiring layer and the backside redistribution layer to each other; and
a passivation layer disposed on the encapsulant and having openings exposing at least portions of the backside redistribution layer.

14. The fan-out sensor package of claim 13 , further comprising electrical connection structures disposed in the openings of the passivation layer and electrically connected to the exposed backside redistribution layer.

15. The fan-out sensor package of claim 1 , further comprising a passive component disposed in the through-hole and electrically connected to the connection pads through the redistribution layer.

16. The fan-out sensor package of claim 1 , wherein the encapsulant covers the inactive surface and side surfaces of the sensor chip, and covers at least portions of the active surface of the sensor chip.

17. The fan-out sensor package of claim 1 , wherein the second insulating layer is spaced apart from the portion of the one surface of the optical lens exposed by the cavity.

18. An optical-type fingerprint sensor module comprising:
the fan-out sensor package of claim 1 ; and
a display panel disposed on the fan-out sensor package,
wherein the display panel is an organic light emitting diode (OLED) panel.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Jae Kul

Classifications

• H01L2224/16225

  Electricity · mapped topic

• H01L2924/15311

  Electricity · mapped topic

• H01L2224/73204

  Electricity · mapped topic

• H01L2224/24195

  Electricity · mapped topic

• H01L24/24

  Electricity · mapped topic