Customized module lid

Patent metadata

Field	Value
Publication number	US-2016157359-A1
Application number	US-201514834478-A
Country	US
Kind code	A1
Filing date	Aug 25, 2015
Priority date	Nov 7, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

A method of forming a custom module lid. The method may include placing a multichip module (MCM) between a module base and a temporary lid, target components are exposed through viewing windows in the temporary lid, a top surface of the target components is measured and mapped to create a target profile, the target profile is used to form custom pockets in a custom lid, and the custom pockets correspond to the target components.

First claim

What is claimed is:

1 . A method comprising:
providing a module base, wherein the module base includes a base pocket, the base pocket is an opening in the module base on a top surface of the module base, and the base pocket has a depth extending into the module base that is less than a thickness of the module base; placing a first thermal interface material (TIM) in the base pocket, wherein the first TIM is on a bottom surface of the base pocket; placing a multichip module (MCM) on the module base, wherein the MCM includes a substrate, a first component, a second component and a target component, the first component is a component on a bottom surface of the substrate, the second component and target component are components on a top surface of the substrate, the first component has a corresponding base pocket and fits inside of the corresponding base pocket, the first TIM is between the bottom surface of the base pocket and a bottom surface of the first component, and the bottom surface of the substrate directly contacts a top surface of the module base; providing a temporary lid, wherein the temporary lid includes, a viewing window, a datum window and a temporary pocket, the viewing window and the datum window are openings extending from a top surface of the temporary lid to a bottom surface of the temporary lid, the temporary pocket is an opening in the temporary lid on the bottom surface of the temporary lid, and the temporary pocket has a depth extending into the temporary lid that is less than a thickness of the temporary lid; placing the temporary lid on the MCM, wherein the second component has a corresponding temporary pocket and fits inside of the corresponding temporary pocket, the target component has a corresponding viewing window and fits inside of the corresponding viewing window, a portion of the substrate corresponds to the datum window, and the bottom surface of the temporary lid directly contacts the top surface of the substrate; measuring a surface profile of the target component through the viewing window and a surface profile of the substrate through the datum window; providing a custom lid, wherein the custom lid has a custom pocket and a standard pocket, the custom pocket and the standard pocket are openings in the custom lid on a bottom surface of the custom lid, the custom pocket and the standard pocket each have a depth extending into the custom lid that are less than a thickness of the custom lid, the custom pocket has an inside surface with a same profile as the target component surface profile, and the standard pocket has an inside surface with a flat profile; placing a second TIM in the custom pocket and in the standard pocket, wherein a portion of the second TIM is on a top surface of the custom pocket and a portion of the second TIM is on a top surface of the standard pocket; and placing the custom lid on the MCM, wherein the second component has a corresponding standard pocket and fits inside of the corresponding standard pocket, the target component has a corresponding custom pocket and fits inside of the corresponding custom pocket, the second TIM is between the top surface of the custom pocket and the top surface of the target component, the second TIM is between the top surface of the standard pocket and a top surface of the second component, and the bottom surface of the custom lid directly contacts the top surface of the substrate.

2 . The method of claim 1 , further comprising:
removing the temporary lid from above the MCM after measuring the surface profile of the target component and before placing the custom lid on the MCM.

3 . The method of claim 1 , wherein the custom lid includes the temporary lid and inserts, and the inserts are placed in the viewing window of the temporary lid.

4 . The method of claim 1 , wherein the target component is measured using an optical process.

5 . The method of claim 1 , wherein the module base includes a slot and the custom lid includes a corresponding fin, the corresponding fin fits inside of the slot.

6 . The method of claim 1 , wherein the first TIM and the second TIM include curable thermal gel.

7 . The method of claim 1 , wherein the substrate is an organic laminate.

8 . The method of claim 1 , wherein the module base and the custom lid are aluminum.

9 . A method comprising:
placing a multichip module (MCM) on a module base, wherein the MCM includes a substrate and a target component, the target component is on a top surface of the substrate, and a bottom surface of the substrate is in direct contact with a top surface of the module base; providing a temporary lid including a viewing window, wherein the viewing window is an opening extending from a top surface of the temporary lid to a bottom surface of the temporary lid; placing the temporary lid on the MCM, wherein the target component fits inside of the viewing window, and the bottom surface of the temporary lid is on the top surface of the substrate; mapping a surface profile of the target component through the viewing window; and providing a custom lid having a custom pocket, wherein the custom pocket is an opening in the custom lid on a bottom surface of the custom lid, the custom pocket has a depth extending into the custom lid that is less than a thickness of the custom lid, and the custom pocket has an inside surface with a same profile as the target component surface profile.

10 . The method of claim 9 , wherein the target component includes an application-specific integrated circuits.

11 . The method of claim 9 , wherein the target component is measured using an optical process.

12 . The method of claim 9 , wherein the custom lid is a cold plate.

13 . The method of claim 9 , wherein the module base includes a slot and the custom lid includes a corresponding fin, and the corresponding fin fits inside of the slot.

14 . The method of claim 9 , wherein the substrate is an organic laminate.

15 . The method of claim 9 , wherein the module base and the custom lid are aluminum.

Assignees

• IBM

Inventors

• Arvelo Amilcar R
• Ellsworth Michael J
• Mckeever Eric J
• Nguyen Thong N
• Seminaro Edward J

Classifications

• H10W40/70

  Fillings or auxiliary members in containers or in encapsulations for thermal protection or control · CPC title

• H10W76/17

  characterised by their materials · CPC title

• H10W76/12 Primary

  characterised by their shape · CPC title

• H10W76/01

  Manufacture or treatment · CPC title

• H10W40/22

  characterised by their shape, e.g. having conical or cylindrical projections · CPC title